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1/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. operational amplifiers / comparators high speed with low voltage cmos operational amplifiers input-output full swing bu7291g,bu7291sg,bu7 255hfv,bu7255shfv ground sense bu7495hfv,bu7495shf v,bu7481g,bu7481sg bu7485g,bu7485sg,b u5281g,bu5281sg description low voltage with high speed cmos op-amp integrat es one independent output full swing op-amps and phase compensation capacitors on a single chip. especially, this series is operable with low voltage, low supply current, high speed and low input bias current. ? input-output full swing bu7291 family, bu7255 family ? ground sense bu7495 family, bu7481 family, bu7485 family, bu5281 family features 1) low operating supply voltage +2.4 [v] ~ +5.5 [v] (single supply): bu7291 family bu7255 family +1.8 [v] ~ +5.5 [v] (single supply): bu7495 family bu7481 family bu5281 family +3.0 [v] ~ +5.5 [v] (single supply): bu7485 family 2) high large signal voltage gain 3) internal esd protection human body model (hbm) 4000 [v] (typ.) 4) low input bias current 1[pa] (typ.) 5) high slew rate 3.0 [v/ s]: bu7291 family 3.4 [v/ s]: bu7255 family 5.0 [v/ s]: bu7495 family 3.2 [v/ s]: bu7481 family 2.0 [v/ s]: bu5281 family 10.0 [v/ s]: bu7485 family pin assignments no.10049eat20 bu7291g (bu7291sg operation guaranteed up to +105 ) BU7255HFV (bu7255shfv operation guaranteed up to +105 ) bu7481g (bu7481sg operation guaranteed up to +105 ) bu7485g (bu7485sg operation guaranteed up to +105 ) bu5281g (bu5281sg operation guaranteed up to +105 ) bu7495hfv (bu7495shfv operation guaranteed up to +105 ) high speed input-output full swing single single ground sense single single single single ssop5 bu7291g bu7291sg bu7485g bu7485sg bu7481g bu7481sg bu5281g bu5281sg hvsof5 BU7255HFV bu7495hfv bu7495shfv 3 4 2 1 5 + - out +in -in vss vdd bu7255shfv
technical note 2/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg absolute maxi mum ratings (ta=25[ ]) parameter symbol ratings unit bu7291g, BU7255HFV bu7495hfv, bu7481g bu7485g, bu5281g bu7291sg, bu7255shfv bu7495shfv, bu7481sg bu7485sg, bu5281sg supply voltage vdd - vss +7 v differential input voltage (*1) vid vdd - vss v input common-mode voltage range vicm (vss - 0.3) ~ (vdd + 0.3) v operating temperature topr - 40 ~ +85 - 40 ~ +105 storage temperature tstg - 55 ~ +125 maximum junction temperature tjmax +125 note: absolute maximum rating item indicate s the condition which must not be exceeded. application of voltage in excess of absolute ma ximum rating or use out absolute maximum rated temperature environment may cause deterioration of characteristics. (*1) the voltage difference between inverting input and non-inverting input is the differential input voltage. then input terminal voltage is set to more than vss. electrical characteristics: input-output full swing bu7291 family(unless otherwise specified vdd=+3[v], vss=0[v], ta=25[ ]) parameter symbol temperature range limits unit condition bu7291g, bu7291sg min. typ. max. input offset voltage (*2) vio 25 1 9 mv input offset current (*2) iio 25 1 pa input bias current (*2) ib 25 1 pa supply current (*3) idd 25 470 800 a rl= all op-amps av=0[db],vin=1.5[v] full range - 1100 high level output voltage voh 25 vdd-0.1 v rl=10[k ? ] low level output voltage vol 25 vss+0.1 v rl=10[k ? ] large signal voltage gain av 25 70 105 db rl=10[k ? ] input common-mode voltage range vicm 25 0 3 v vss ~ vdd common-mode rejection ratio cmrr 25 40 60 db power supply rejection ratio psrr 25 45 80 db output source current (*4) ioh 25 5 8 ma vdd-0.4[v] output sink current (*4) iol 25 9 16 ma vss+0.4[v] slew rate sr 25 3.0 v/ s cl=25[pf] gain band width ft 25 2.8 mhz cl=25[pf], av=40[db] phase margin 25 50 cl=25[pf], av=40[db] total harmonic distortion thd 25 0.03 % vout=0.8[vp-p],f=1[khz] (*2) absolute value (*3) full range bu7291: ta=-40[ ]~+85[ ] bu7291s: ta=-40[ ]~+105[ ] (*4) under the high temperature environment, consider the po wer dissipation of ic when selecting the output current. when the terminal short circuits are continuously output, the ou tput current is reduced to clim b to the temperature inside ic.
technical note 3/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg bu7255(unless otherwise specifi ed vdd=+3[v], vss=0[v], ta=25[ ]) parameter symbol temperature range limits unit condition BU7255HFV, bu7255shfv min. typ. max. input offset voltage (*5) vio 25 1 9 mv input offset current (*5) iio 25 1 pa input bias current (*5) ib 25 1 pa supply current (*6) idd 25 540 900 a rl= all op-amps av=0[db],vin=1.5[v] full range 1200 high level output voltage voh 25 vdd-0.1 v rl=10[k ? ] low level output voltage vol 25 vss+0.1 v rl=10[k ? ] large signal voltage gain av 25 60 105 db rl=10[k ? ] input common-mode voltage range vicm 25 0 - 3 v vss ~ vdd common-mode rejection ratio cmrr 25 40 60 db power supply rejection ratio psrr 25 45 80 db output source current (*7) ioh 25 2 4 ma vdd - 0.4[v] output sink current (*7) iol 25 4 8 ma vss + 0.4[v] slew rate sr 25 3.4 v/ s cl=25[pf] gain band width ft 25 4 mhz cl=25[pf], av=40[db] phase margin 25 40 cl=25[pf], av=40[db] (*5) absolute value (*6) full range bu7255: ta=-40[ ]~+85[ ] bu7255s: ta=-40[ ]~+105[ ] (*7) under the high temperature environment, consider the po wer dissipation of ic when selecting the output current. when the terminal short circuits are continuously output, the ou tput current is reduced to clim b to the temperature inside ic.
technical note 4/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg bu7495 family(unless otherwise specified vdd=+3[v], vss=0[v], ta=25[ ]) parameter symbol temperature range limits unit condition bu7495hfv, bu7495shfv min. typ. max. input offset voltage (*8) vio 25 1 6 mv input offset current (*8) iio 25 1 pa input bias current (*8) ib 25 1 pa supply current (*9) idd 25 650 1150 a rl= all op-amps av=0[db],vin=0.9[v] full range 1350 high level output voltage voh 25 vdd-0.1 v rl=10[k ? ] low level output voltage vol 25 - - vss+0.1 v rl=10[k ? ] large signal voltage gain av 25 60 100 db rl=10[k ? ] input common-mode voltage range vicm 25 0 - 1.8 v vss ~ vdd-1.2[v] common-mode rejection ratio cmrr 25 45 60 db power supply rejection ratio psrr 25 60 80 db output source current (*10) ioh 25 4 7 ma vdd - 0.4[v] output sink current (*10) iol 25 9 14 ma vss + 0.4[v] slew rate sr 25 5.0 v/ s cl=25[pf] gain band width ft 25 4 mhz cl=25[pf], av=40[db] phase margin 25 50 cl=25[pf], av=40[db] total harmonic distortion thd 25 0.03 % vout=0.8[vp-p], f=1[khz] (*8) absolute value (*9) full range bu7495: ta=-40[ ]~+85[ ] bu7495s: ta=-40[ ]~+105[ ] (*10) under the high temperature environment, consider the po wer dissipation of ic when selecting the output current. when the terminal short circuits are continuously output, the ou tput current is reduced to clim b to the temperature inside ic
technical note 5/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg bu7481 family(unless otherwise specified vdd=+3[v], vss=0[v], ta=25[ ]) parameter symbol temperature range limits unit condition bu7481g, bu7481sg min. typ. max. input offset voltage (*11) vio 25 1 8 mv input offset current (*11) iio 25 1 pa input bias current (*11) ib 25 1 pa supply current (*12) idd 25 420 750 a rl= all op-amps av=0[db],vin=0.9[v] full range 900 high level output voltage voh 25 vdd-0.1 v rl=10[k ? ] low level output voltage vol 25 vss+0.1 v rl=10[k ? ] large signal voltage gain av 25 70 105 db rl=10[k ? ] input common-mode voltage range vicm 25 0 1.8 v vss ~ vdd-1.2[v] common-mode rejection ratio cmrr 25 45 60 db power supply rejection ratio psrr 25 60 80 db output source current (*13) ioh 25 5 8 ma vdd - 0.4[v] output sink current (*13) iol 25 9 16 ma vss + 0.4[v] slew rate sr 25 3.2 v/ s cl=25[pf] gain band width ft 25 2.8 mhz cl=25[pf], av=40[db] phase margin 25 50 cl=25[pf], av=40[db] total harmonic distortion thd 25 0.03 % vout=0.8[vp-p], f=1[khz] (*11) absolute value (*12) full range bu7481: ta=-40[ ]~+85[ ] bu7481s: ta=-40[ ]~+105[ ] (*13) under the high temperature environment, consider the po wer dissipation of ic when selecting the output current. when the terminal short circuits are continuously output, the ou tput current is reduced to clim b to the temperature inside ic.
technical note 6/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg bu7485 family(unless otherwise specified vdd=+3[v], vss=0[v], ta=25[ ]) parameter symbol temperature range limits unit condition bu7485g, bu7485sg min. typ. max. input offset voltage (*14) vio 25 1 9.5 mv input offset current (*14) iio 25 1 pa input bias current (*14) ib 25 1 pa supply current (*15) idd 25 1500 2000 a rl= all op-amps av=0[db],vin=0.8[v] full range 2400 high level output voltage voh 25 vdd-0.1 v rl=10[k ? ] low level output voltage vol 25 vss+0.1 v rl=10[k ? ] large signal voltage gain av 25 70 105 db rl=10[k ? ] input common-mode voltage range vicm 25 0 1.6 v vss ~ vdd-1.4[v] common-mode rejection ratio cmrr 25 45 60 db power supply rejection ratio psrr 25 60 80 db output source current (*16) ioh 25 4 8 ma vdd-0.4[v] output sink current (*16) iol 25 7 12 ma vss + 0.4[v] slew rate sr 25 10 v/ s cl=25[pf] gain band width ft 25 10 mhz cl=25[pf], av=40[db] phase margin 25 50 cl=25[pf], av=40[db] total harmonic distortion thd 25 0.03 % vout=0.7[vp-p], f=1[khz] (*14) absolute value (*15) full range bu7485: ta=-40[ ]~+85[ ] bu7485s: ta=-40[ ]~+105[ ] (*16) under the high temperature environment, consider the po wer dissipation of ic when selecting the output current. when the terminal short circuits are continuously output, the ou tput current is reduced to clim b to the temperature inside ic.
technical note 7/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg bu5281 family(unless otherwise specified vdd=+3[v], vss=0[v], ta=25[ ]) parameter symbol temperature range limits unit condition bu5281g, bu5281sg min. typ. max. input offset voltage (*17) vio 25 0.1 2.5 mv input offset voltage drift (*17) vio/ t - 0.8 v/ input offset current (*17) iio 25 1 pa input bias current (*17) ib 25 1 pa supply current (*18) idd 25 750 1000 a rl= all op-amps av=0[db],vin=0.9[v] full range 1200 high level output voltage voh 25 vdd-0.1 v rl=10[k ? ] low level output voltage vol 25 vss+0.1 v rl=10[k ? ] large signal voltage gain av 25 70 110 db rl=10[k ? ] input common-mode voltage range vicm 25 0 1.8 v vss ~ vdd - 1.2[v] common-mode rejection ratio cmrr 25 45 60 db power supply rejection ratio psrr 25 60 80 db output source current (*19) ioh 25 5 8 ma vdd-0.4[v] output sink current (*19) iol 25 10 16 ma vss+0.4[v] slew rate sr 25 2.0 v/ s cl=25[pf] gain band width ft 25 3 mhz cl=25[pf], av=40[db] phase margin 25 40 cl=25[pf], av=40[db] input referred noise voltage vin 25 18 nv/(hz) 1/2 av=40[db], f=1[khz] 3.2 vrms av=40[db], dinaudio total harmonic distortion thd 25 0.003 % vout=0.4[vp-p], f=1[khz] (*17) absolute value (*18) full range bu5281: ta=-40[ ]~+85[ ] bu5281s: ta=-40[ ]~+105[ ] (*19) under the high temperature environment, consider the po wer dissipation of ic when selecting the output current. when the terminal short circuits are continuously output, the ou tput current is reduced to clim b to the temperature inside ic.
technical note 8/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 200 400 600 800 0 5 0 100 15 0 amb ient temp erature [ ] power dissip ation [mw] . 0 5 10 15 20 -60 -30 0 30 60 90 120 ambient temperature [ ] output source current [ma] 0 10 20 30 40 50 0 0 .5 1 1. 5 2 2.5 3 outp ut v oltage [v] output source current [ma] 0 200 400 600 800 1000 23 456 sup ply volta ge [v ] supply current [ a] 0 200 400 600 800 0 5 0 100 15 0 amb ient temp erature [ ] power dissip ation [mw] . 0 1 2 3 4 5 6 123456 suppl y vo ltage [v] output voltage high [v] 0 5 10 15 20 23456 supply vol tage [ v] output voltage low [mv] 0 10 20 30 40 50 -60-30 0 306090120 ambient temperature [ ] output sink current [ma] 0 20 0 40 0 60 0 80 0 100 0 -60-30 0 306090120 ambie nt te mpe rature [ ] s upp ly current [ a] 0 1 2 3 4 5 6 -60 -30 0 30 60 90 120 ambient temperature [ ] output voltag e high [v ] 0 5 10 15 20 -60-30 0 30 60 90120 ambient temperature [ ] o utput vo ltage low [mv] 0 20 40 60 80 0.0 0.5 1.0 1.5 2.0 2.5 3.0 o utput vo ltage [v] output sink current [ma] output source current ? ambient temperature (vout=vdd-0.4[v]) reference data (bu7291 family) (*)the above data is ability value of samp le, it is not guaranteed.bu7291g: -40[ ] ~ +85[ ] bu7291sg: -40[ ] ~ +105[ ] -40 25 85 bu7291 famil y 105 5.5v 2.4v 3.0v bu7291 famil y -40 25 85 105 bu7291 family 2.4v 5.5v 3.0v bu7291 family -40 25 85 105 bu7291 family 2.4v 5.5v 3.0v bu7291 famil y 2.4v 5.5v 3.0v bu7291 family -40 25 85 105 bu7291 family bu7291g 85 bu7291 famil y 105 bu7291 family bu7291sg 2.4v 5.5v 3.0v bu7291 family -40 25 85 105 bu7291 family fig.1 fig.2 fig.3 fig.4 fig.5 fig.6 fig.7 fig.8 fig.9 fig.10 fig.11 fig.12 supply current ? supply voltage derating curve derating curve supply current ? ambient temperature output voltage high ? supply voltage (rl=10[k ? ]) output voltage high ? ambient temperature (rl=10[k ? ]) output voltage low ? supply voltage (rl=10[k ? ]) output voltage low ? ambient temperature (rl=10[k ? ]) output source current ? output voltage (vdd=3[v]) output sink current ? ambient temperature (vout=vss+0.4[v]) output sink current ? output voltage (vdd=3[v])
technical note 9/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 60 80 100 120 140 160 -60-300 306090120 ambient temperature [ ] large s ignal voltag e gai n [db] -1 0.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 -60-30 0 306090120 amb ient temperature [ ] inp ut o ffs et vol tage [ mv] 0 20 40 60 80 100 1.e+00 1.e+01 1.e+02 1.e+03 1.e+04 1.e+05 1.e+06 1.e+07 1.e+08 frequency [hz] gain[d b] 0 50 100 150 200 phase [deg ] 0 20 40 60 80 100 120 2 345 6 suppl y vol tage [v] common mode rejection ratio [db] 60 80 100 120 140 160 23456 supply voltage [v] large s ignal voltag e ga in [db] 0 20 40 60 80 100 120 140 -6 0 - 30 0 30 60 90 12 0 ambient temperature [ ] power supply rejection ratio [db] 0 20 40 60 80 100 120 -60-30 0 306090120 ambie nt temperature [ ] common mode rejection ratio [db] 0 1 2 3 4 5 -6 0 - 30 0 30 6 0 9 0 120 amb ient temp erature [ ] sl ew rat e l- h [v/ s] 0.0 1.0 2.0 3.0 4.0 5.0 -60 -30 0 30 60 90 120 ambient temperature [ ] slew rate h-l [v/ s] -10.0 -7 .5 -5 .0 -2 .5 0.0 2.5 5.0 7.5 10 .0 23456 s upp ly v oltag e [v] input offset v oltage [mv] -1 5 -1 0 -5 0 5 10 15 -101234 input voltage [v] input offset vo ltage [mv ] reference data (bu7291 family) (*)the above data is ability value of sample, it is not guaranteed. bu7291g: -40[ ] ~ +85[ ] bu7291sg: -40[ ] ~ +105[ ] fig.16 fig.17 fig.18 -40 25 85 105 bu7291 famil y -40 25 85 105 bu7291 family bu7291 famil y 5.5v 2.4v 3.0v bu7291 family 5.5v 2.4v 3.0v bu7291 famil y 5.5v 2.4v 3.0v bu7291 famil y phase gain bu7291 famil y -40 25 85 105 bu7291 famil y 5.5v 2.4v 3.0v bu7291 famil y bu7291 family 5.5v 2.4v 3.0v -40 25 85 105 bu7291 famil y fig.13 fig.14 fig.15 fig.19 fig.20 fig.21 fig.22 fig.23 voltage gain frequency common mode rejection ratio ? supply voltage (vdd=3[v]) slew rate l-h ? ambient temperature slew rate h-l ? ambient temperature input offset voltage ? supply voltage (vicm=vdd, vout=1.5[v]) input offset voltage ? ambient temperature (vicm=vdd, vout=1.5[v]) input offset voltage ? input voltage (vdd=3[v]) large signal voltage gain ? supply voltage large signal voltage gain ? ambient temperature power supply rejection ratio ? ambient temperature common mode rejection ratio ? ambient temperature
technical note 10/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 5 10 15 20 -60 -30 0 30 60 90 120 ambient temperature [ ] output voltage low [mv] 0 20 0 40 0 60 0 80 0 100 0 0 5 0 10 0 150 amb ient temperature [ ] po wer diss ipatio n [ mw] . 0 20 0 40 0 60 0 80 0 1000 0 50 100 150 ambient temperature [ ] po wer diss ipatio n [ mw ] . 0 25 0 50 0 75 0 100 0 125 0 150 0 23456 supply voltage [v] supply current [ a] 0 1 2 3 4 5 6 23456 supp ly v oltage [v] output vol tage high [ v] 0 10 20 30 40 0.0 0. 5 1. 0 1. 5 2 .0 2 .5 3 .0 output vol tage [ v] output sink current [ma] 0 5 10 15 20 2345 6 supp ly v oltage [v] output volta ge l ow [ mv] 0 300 600 900 12 00 15 00 -6 0 - 30 0 30 60 90 12 0 ambient temperature [ ] suppl y current [ a] 0 1 2 3 4 5 6 -60-30 0 306090120 a mbi ent temp era ture [ ] output voltag e high [v] 0 10 20 30 40 - 60 - 30 0 30 6 0 90 120 ambient temperature[ ] output sink current [ma] 0 5 10 15 20 -6 0 - 30 0 3 0 6 0 90 12 0 a mbie nt te mpe rature [ ] output source current [ma] 0 5 10 15 20 00.511.522.53 output voltag e [v ] output source current [ma] output source current ?ambient temperature (vout=vdd-0.4[v]) reference data (bu7255 family) (*)the above data is ability value of sample , it is not guaranteed. BU7255HFV: -40[ ] ~ +85[ ] bu7255shfv: -40[ ] ~ +105[ ] 85 -40 25 105 bu7255 famil y 3.0v 2.4v 5.5v bu7255 famil y -40 25 85 105 bu7255 family -40 25 85 105 bu7255 famil y 2.4v 5.5v 3.0v bu7255 famil y 2.4v 5.5v 3.0v bu7255 famil y -40 25 85 105 bu7255 famil y 5.5v 2.4v 3.0v bu7255 famil y BU7255HFV 85 bu7255shfv 105 bu7255 famil y 5.5v bu7255 famil y -40 25 85 105 bu7255 family 3.0v 2.4v bu7255 fig.24 fig.25 fig.26 fig.27 fig.28 fig.29 fig.30 fig.31 fig.32 fig.33 fig.34 fig.35 supply current ? supply voltage derating curve derating curve supply current ? ambient temperature output voltage high ? supply voltage (rl=10[k ? ]) output voltage high ? ambient temperature (rl=10[k ? ]) output voltage low ? supply voltage (rl=10[k ? ]) output voltage low ? ambient temperature (rl=10[k ? ]) output source current ? output voltage (vdd=3[v]) output sink current ? ambient temperature (vout=vss+0.4[v]) output sink current ? output voltage (vdd=3[v])
technical note 11/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0.0 2.0 4.0 6.0 8.0 -60 -30 0 30 60 90 120 ambient temperature [ ] sl ew ra te h-l [v/ s] 0 20 40 60 80 100 120 2 345 6 suppl y vol tage [ v] common mode rejection ratio [db] 0 2 4 6 8 -60-300306090120 amb ient temp erature [ ] sl ew ra te l-h [v/ s] 0 20 40 60 80 10 0 12 0 14 0 2 345 6 supply vol ta ge [ v] large signal vol tage g ain [d b] -10.0 -7.5 -5.0 -2.5 0. 0 2. 5 5. 0 7. 5 10. 0 234 56 supply vol ta ge[v ] input offs et vol tage [ mv ] 3.0v 0 20 40 60 80 100 1. e+00 1.e+01 1.e+02 1. e+03 1. e+ 04 1.e+05 1.e+06 1. e+07 1. e+ 08 frequency [hz] gain [db] 0 50 10 0 15 0 20 0 phase [d eg ] 60 80 10 0 12 0 14 0 16 0 -6 0 - 30 0 30 60 9 0 1 20 amb ient temperature [ ] large signal vol ta ge g ain [db ] -15 -10 -5 0 5 10 15 -101234 input vol ta ge [v ] input offset v oltag e [mv] 0 20 40 60 80 10 0 12 0 -60-300306090120 amb ient temp erature [ ] c omm on mo de re jec ti on ra ti o [d b] -1 0.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 -60 -30 0 30 60 90 120 ambie nt temperature [ ] input offset voltage [mv] 0 20 40 60 80 100 120 140 -60 -30 0 30 60 90 120 ambie nt temperature [ ] p owe r s up ply re jec ti on ra ti o [d b] reference data (bu7255 family) (*)the above data is ability value of sample , it is not guaranteed. BU7255HFV: -40[ ] ~ +85[ ] bu7255shfv: -40[ ] ~ +105[ ] bu7255 famil y fig.39 fig.40 fig.41 fig.36 fig.37 fig.38 5.5v 2.4v 3.0v 5.5v 2.4v bu7255 famil y phase gain bu7255 famil y 5.5v 2.4v 3.0v bu7255 famil y -40 25 85 105 -40 25 85 105 -40 25 85 105 bu7255 famil y -40 25 85 105 bu7255 family bu7255 famil y 5.5v 2.4v 3.0v 2.4v 5.5v 3.0v bu7255 famil y fig.42 fig.43 fig.44 fig.45 fig.46 bu7255 family bu7255 famil y bu7255 famil y voltage gain frequency common mode rejection ratio ? supply voltage (vdd=3[v]) slew rate l-h ? ambient temperature slew rate h-l ? ambient temperature input offset voltage ? supply voltage (vicm=vdd, vout=1.5v]) input offset voltage ? ambient temperature (vicm=vdd, vout=1.5[v]) input offset voltage ? input voltage (vdd=3[v]) large signal voltage gain ? supply voltage large signal voltage gain ? ambient temperature power supply rejection ratio ? ambient temperature common mode rejection ratio ? ambient temperature
technical note 12/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 20 0 40 0 60 0 80 0 1000 0 5 0 1 00 150 amb ient temp erature [ ] po wer diss ipatio n [ mw] . 0 5 10 15 20 -60-30 0 306090120 ambie nt temperature [ ] output source current [ma] 0 10 20 30 40 00.511.522.53 output voltage [v] output source current [ma] output source current ? ambient temperature (vout=vdd-0.4[v]) reference data (bu7495 family) (*)the above data is ability value of sample , it is not guaranteed. bu7495hfv: -40[ ] ~ +85[ ] bu7495shfv: -40[ ] ~ +105[ ] 0 5 10 15 20 -60-30 0 306090120 amb ient temp erature [ ] outp ut v oltage low [mv] 0 20 0 40 0 60 0 80 0 1000 050100150 amb ient temp erature [ ] po wer diss ipatio n [mw] . 0 0.5 1 1.5 2 123456 suppl y vo ltage [v] supply current [ma] 0 1 2 3 4 5 6 123456 supp ly v oltage [v] output vo ltage hi gh [v] 0 10 20 30 40 50 60 0.0 0.5 1. 0 1. 5 2.0 2.5 3. 0 output vol ta ge [v ] output sink current [ma] 0 5 10 15 12345 6 supp ly v oltage [v] output voltage low [mv] 0 0. 5 1 1. 5 2 -60-300 306090120 a mbi ent temp era ture [ ] supply current [ma] 85 -40 25 105 bu7495 famil y 3.0v 1.8v 5.5v bu7495 famil y -40 25 85 105 bu7495 famil y -40 25 85 105 bu7495 famil y 0 1 2 3 4 5 6 -60 -30 0 30 60 9 0 1 20 amb ient temp erature [ ] output voltag e high [v] 1.8v 5.5v 3.0v bu7495 famil y 1.8v 5.5v 3.0v bu7495 famil y -40 25 85 105 bu7495 famil y 0 10 20 30 40 -60-30 0 30 60 90120 amb ient temp erature[ ] output sink current [ma] 5.5v 1.8v 3.0v bu7495 famil y bu7495hfv 85 bu7495shfv 105 bu7495 famil y 5.5v bu7495 famil y -40 25 85 105 bu7495 family 3.0v 1.8v bu7495 famil y fig.47 fig.48 fig.49 fig.50 fig.51 fig.52 fig.53 fig.54 fig.55 fig.56 fig.57 fig.58 supply current ? supply voltage derating curve derating curve supply current ? ambient temperature output voltage high ? supply voltage (rl=10[k ? ]) output voltage high ? ambient temperature (rl=10[k ? ]) output voltage low ? supply voltage (rl=10[k ? ]) output voltage low ? ambient temperature (rl=10[k ? ]) output source current ? output voltage (vdd=3[v]) output sink current ? ambient temperature (vout=vss+0.4[v]) output sink current ? output voltage (vdd=3[v])
technical note 13/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 20 40 60 80 100 120 12 3456 sup ply volta ge [v ] common mode rejection ratio [db] 0 20 40 60 80 10 0 12 0 14 0 -60-30 0 30 60 90120 ambie nt te mpe rature [ ] large signal vol ta ge ga in [db ] -10.0 -7.5 -5.0 -2.5 0. 0 2. 5 5. 0 7. 5 10. 0 12 345 6 input vol ta ge [ v] input offset v oltage [mv] -15 -10 -5 0 5 10 15 -101 23 input vol ta ge [v ] input offset v oltag e [mv] 0 20 40 60 80 10 0 12 0 -60-30 0 306090120 a mbi ent te mp era ture [ ] c omm on mo de re jec ti on ra ti o [d b] -1 0.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 -60-30 0 306090120 ambient temperature [ ] input offset voltage [mv] 0 20 40 60 80 100 120 -60 -30 0 30 60 90 120 ambie nt temperature [ ] p owe r s up ply re jec ti on ra ti o [d b] reference data (bu7495 family) (*)the above data is ability value of sample , it is not guaranteed. bu7495hfv: -40[ ] ~ +85[ ] bu7495shfv: -40[ ] ~ +105[ ] fig.62 fig.63 fig.64 0 2 4 6 8 -60-30 0 30 60 90120 amb ient temp era ture [ ] slew rate l -h [v / s] 5.5v 1.8v 3.0v bu7495 family 0.0 2.0 4.0 6.0 8.0 -6 0 - 30 0 3 0 6 0 9 0 1 20 amb ient temp erature [ ] sl ew ra te h-l [v/ s] 5.5v 1.8v 3.0v bu7495 famil y 0 20 40 60 80 100 1.e+00 1. e+01 1. e+02 1. e+03 1. e+ 04 1. e+ 05 1. e+06 1.e+07 1.e+08 f re que nc y [h z] gai n [ db] 0 50 100 150 200 phase [de g] phase gain bu7495 family 5.5v 1.8v 3.0v bu7495 family -40 25 85 105 -40 25 85 105 -40 25 85 105 bu7495 family 0 20 40 60 80 10 0 12 0 14 0 16 0 12 34 56 sup ply volta ge [v ] large signal vol tage g ain [d b] -40 25 85 105 bu7495 family bu7495 family 5.5v 1.8v 3.0v 1.8v 5.5v 3.0v bu7495 famil y fig.59 fig.60 fig.61 fig.65 fig.66 fig.67 fig.68 fig.69 bu7495 family bu7495 famil y bu7495 famil y voltage gain frequency common mode rejection ratio ? supply voltage (vdd=3[v]) slew rate l-h ? ambient temperature slew rate h-l ? ambient temperature input offset voltage ? supply voltage (vicm=vdd-1.2[v], vout=1.5[v]) input offset voltage ? ambient temperature (vicm=vdd, vout=1.5[v]) input offset voltage ? input voltage (vdd=3[v]) large signal voltage gain ? supply voltage large signal voltage gain ? ambient temperature power supply rejection ratio ? ambient temperature common mode rejection ratio ? ambient temperature
technical note 14/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 5 10 15 20 -60-30 0 306090120 ambie nt temperature [ ] output source current [ma] 0 10 20 30 40 50 00.511.522.53 output voltage [v] output source current [ma] 0 20 0 40 0 60 0 80 0 100 0 05 01 0 01 5 0 amb ient temperature [ ] po wer diss ipatio n [ mw ] . output source current ?ambient temperature (vout=vdd-0.4[v]) reference data (bu7481 family) (*)the above data is ability value of sample, it is not guaranteed. bu7481g: -40[ ] ~ +85[ ] bu7481sg: -40[ ] ~ +105[ ] fig.79 fig.80 fig.81 fig.70 fig.71 fig.72 0 200 400 600 800 1 234 56 supply vol ta ge [ v] supp ly current [ a] 0 5 10 15 -60-30 0 30 60 90120 a mbi ent te mpe ra ture [ ] output voltage low [mv] 0 20 0 40 0 60 0 80 0 1000 0 5 0 10 0 150 amb ient temp erature [ ] po wer diss ipatio n [mw] . 0 1 2 3 4 5 6 1234 56 suppl y vol tage [v] output voltag e high [v ] 0 20 40 60 80 0.0 0.5 1. 0 1. 5 2.0 2.5 3. 0 output vol ta ge [v ] output sink current [ma] 0 5 10 15 12345 6 supp ly v oltage [v] output voltage low [mv] 0 20 0 40 0 60 0 80 0 -60-30 0 30 60 90120 amb ient temp erature [ ] supply current [ a] 85 -40 25 105 bu7481 famil y 3.0v 1.8v 5.5v bu7481 famil y -40 25 85 105 bu7481 famil y -40 25 85 105 bu7481 famil y 0 1 2 3 4 5 6 -60 -30 0 30 60 9 0 1 20 amb ient temp erature [ ] output voltag e high [v] 1.8v 5.5v 3.0v bu7481 family 1.8v 5.5v 3.0v bu7481 famil y -40 25 85 1 05 bu7481 famil y 0 10 20 30 40 50 - 60 - 30 0 30 6 0 90 120 ambient temperature [ ] output sink current [ma] 5.5v 1.8v 3.0v bu7481 famil y bu7481g 85 105 bu7481 famil y 5.5v bu7481 famil y -40 25 85 105 bu7481 family 3.0v 1.8v bu7481 famil y fig.73 fig.74 fig.75 fig.76 fig.77 fig.78 bu7481sg supply current ? supply voltage derating curve derating curve supply current ? ambient temperature output voltage high ? supply voltage (rl=10[k ? ]) output voltage high ? ambient temperature (rl=10[k ? ]) output voltage low ? supply voltage (rl=10[k ? ]) output voltage low ? ambient temperature (rl=10[k ? ]) output source current ? output voltage (vdd=3[v]) output sink current ? ambient temperature (vout=vss+0.4[v]) output sink current ? output voltage (vdd=3[v])
technical note 15/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 60 80 10 0 12 0 14 0 16 0 -60-30 0 30 60 90120 ambie nt te mpe rature [ ] large signal vol ta ge ga in [db ] -10 -8 -6 -4 -2 0 2 4 6 8 10 123456 input voltage [v] input offset v oltag e [mv] -10 -8 -6 -4 -2 0 2 4 6 8 10 -101 23 input vol ta ge [v ] input offset v oltag e [mv] 0 20 40 60 80 100 120 12 3456 sup ply volta ge [v ] common mode rejection ratio [db] 0 20 40 60 80 100 120 -6 0 - 30 0 30 60 90 12 0 ambient temperature [ ] common mode rejection ratio [db] -1 0.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 -60-30 0 306090120 a mbi en t te mpe ra t ur e [ ] input offs et vol tage [ mv] 0 20 40 60 80 100 120 140 -60 -30 0 30 60 90 120 ambie nt temperature [ ] p owe r s up ply re jec ti on ra ti o [d b] reference data (bu7481 family) (*)the above data is ability value of sample, it is not guaranteed. bu7481g: -40[ ] ~ +85[ ] bu7481sg: -40[ ] ~ +105[ ] fig.82 fig.83 fig.84 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -60-30 0 306090120 ambient temperature [ ] sl ew rate h-l [v/ s] 0.0 1.0 2.0 3.0 4.0 5.0 -60-300306090120 amb ient temp erature [ ] sl ew ra te l-h [v/ s] 1.8v 3.0v bu7481 family 5.5v 1.8v 3.0v bu7481 famil y 0 20 40 60 80 100 1.e+00 1.e+01 1.e+02 1.e+03 1.e+04 1.e+05 1. e+06 1. e+07 1. e+08 frequency [hz] gain [db] 0 50 10 0 15 0 20 0 phase [d eg] phase gain bu7481 family 5.5v 1.8v 3.0v bu7481 family -40 25 85 105 -40 25 85 105 -40 25 85 105 bu7481 famil y 0 20 40 60 80 100 120 140 160 1 234 56 supply vol ta ge [ v] la rge sig nal vol tage gain [d b] -40 25 85 105 bu7481 family bu7481 family 5.5v 1.8v 3.0v 1.8v 5.5v 3.0v bu7481 famil y fig.85 fig.86 fig.87 fig.91 fig.92 bu7481 family bu7481 famil y bu7481 famil y fig.88 fig.89 fig.90 5.5v voltage gain frequency common mode rejection ratio ? supply voltage (vdd=3[v]) slew rate l-h ? ambient temperature slew rate h-l ? ambient temperature input offset voltage ? supply voltage (vicm=vdd-1.2[v], vout=1.5[v]) input offset voltage ? ambient temperature (vicm=vdd-1.2[v], vout=1.5[v]) input offset voltage ? input voltage (vdd=3[v]) large signal voltage gain ? supply voltage large signal voltage gain ? ambient temperature power supply rejection ratio ? ambient temperature common mode rejection ratio ? ambient temperature
technical note 16/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 200 400 600 800 05 01 0 01 5 0 amb ient temp erature [ ] power dissip ation [mw] . output source current ?ambient temperature (vout=vdd-0.4[v]) reference data (bu7485 family) (*)the above data is ability value of sample, it is not guaranteed. bu7485g: -40[ ] ~ +85[ ] bu7485sg: -40[ ] ~ +105[ ] 0 1 2 3 4 5 6 23456 s up ply voltag e [v ] output vol ta ge high [ v] 0 5 10 15 20 -60-30 0 30 60 90120 ambie nt te mpe rature [ ] o utput vo ltage low [mv] 0 1 2 3 4 -60-30 0 306090120 suppl y vo ltage [v] supply current [mv] 0 5 10 15 20 2.5 3 3 .5 4 4.5 5 5.5 6 supply vol ta ge [v ] output voltag e lo w [ mv] 0 10 20 30 40 50 60 70 80 0.00.51.01.52.02.53.0 output vol ta ge [v ] output sink current [ma] 0 10 20 30 40 50 00.51 1.52 2.5 3 output voltag e [v] output source current [ma] 0 1 2 3 4 2.533.544.555.56 supp ly v oltage [v] sup ply curre nt [ a] bu7485 famil y 3.0v 5.5v 4.0v 85 bu7485 famil y bu7485g bu7485 famil y -40 25 85 105 0 1 2 3 4 5 6 -60-300 306090120 ambie nt temperature [ ] o utput vo ltage hi gh [v] bu7485 family 3.0v 5.5v 4.0v bu7485 famil y -40 25 85 105 bu7485 family -40 25 85 105 0 10 20 30 40 -60-30 0 30 60 90120 a mbi ent temp era ture [ ] output sink current [ma] bu7485 famil y 5.5v 3.0v 4.0v bu7485 famil y 25 85 105 bu7485 famil y 3.0v 5.5v 4.0v 0 200 400 600 800 0 5 0 100 15 0 amb ient temp erature [ ] power dissip ation [ mw] . bu7485sg 105 bu7485 famil y bu7485 family -40 25 85 105 0 5 10 15 20 -60-30 0 306090120 ambient temperature [ ] output source current [ma] bu7485 famil y 3.0v 5.5v 4.0v -40 supply current ? supply voltage derating curve derating curve supply current ? ambient temperature output voltage high ? supply voltage (rl=10[k ? ]) output voltage high ? ambient temperature (rl=10[k ? ]) output voltage low ? supply voltage (rl=10[k ? ]) output voltage low ? ambient temperature (rl=10[k ? ]) output source current ? output voltage (vdd=3[v]) output sink current ? ambient temperature (vout=vss+0.4[v]) output sink current ? output voltage (vdd=3[v]) fig.96 fig.97 fig.98 fig.93 fig.94 fig.95 fig.99 fig.100 fig.101 fig.102 fig.103 fig.104
technical note 17/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 20 40 60 80 100 120 140 23456 s upp ly v oltag e [v] l arge s ignal voltag e gai n [db] -10.0 -7 .5 -5 .0 -2 .5 0.0 2.5 5.0 7.5 10 .0 23456 suppl y vol tage [v] input offset vo ltage [mv] reference data (bu7485 family) (*)the above data is ability value of sample, it is not guaranteed. bu7485g: -40[ ] ~ +85[ ] bu7485sg: -40[ ] ~ +105[ ] 0.0 2.0 4.0 6.0 8.0 10 .0 12 .0 -60-30 0 306090120 ambie nt temperature [ ] sl ew rate l-h [v/ s] 0 20 40 60 80 100 120 -60-30 0 30 60 90120 ambi ent temperature [ ] power suppl y rejecti on ratio [ db] 0 20 40 60 80 100 120 -60 -30 0 30 60 90 120 ambi ent temperature [ ] com mon m ode re je ct ion r at io [d b] 0 20 40 60 80 100 120 23456 suppl y vol tage [v] common mode rejection ratio [db] 0. 0 5. 0 10. 0 15. 0 20. 0 25. 0 30. 0 -60-30 0 306090120 a mbi ent temp era ture [ ] slew rate h-l [v/ s] -1 0.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 - 60 -30 0 30 60 90 120 amb ient temp erature [ ] input offset voltage [mv] 0 20 40 60 80 100 1.e+00 1.e+01 1.e+02 1.e+03 1.e+04 1.e+05 1.e+06 1.e+07 1.e+08 frequency[hz] gain [db] 0 50 100 150 200 phase [deg] 60 80 100 120 140 160 - 60 - 30 0 30 60 90 120 ambient temperature [ ] l arge s ignal v oltage gai n [ db] -40 25 85 105 bu7485 famil y bu7485 family 5.5v 3.0v 4.0v -40 25 85 105 bu7485 family 5.5v 3.0v 4.0v bu7485 famil y bu7485 family 5.5v 3.0v 4.0v bu7485 family 5.5v 3.0v 4.0v bu7485 famil y -40 25 85 105 5.5v 3.0v 4.0v bu7485 family -1 5 -1 0 -5 0 5 10 15 -1 0 1 2 3 input voltag e [v ] input offset vo ltage [mv ] -40 25 85 105 bu7485 family bu7485 family phase gain bu7485 famil y voltage gain frequency common mode rejection ratio ? supply voltage (vdd=3[v]) slew rate l-h ? ambient temperature slew rate h-l ? ambient temperature input offset voltage ? supply voltage (vicm=vdd-1.4[v], vout=1.5[v]) input offset voltage ? ambient temperature (vicm=vdd-1.4[v], vout=1.5[v]) input offset voltage ? input voltage (vdd=3[v]) large signal voltage gain ? supply voltage large signal voltage gain ? ambient temperature power supply rejection ratio ? ambient temperature common mode rejection ratio ? ambient temperature fig.108 fig.109 fig.110 fig.105 fig.106 fig.107 fig.111 fig.112 fig.113 fig.114 fig.115
technical note 18/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 20 0 40 0 60 0 80 0 100 0 050100150 a mbi ent te mpe ra ture [ ] po wer diss ipatio n [ mw] . output source current ?ambient temperature (vout=vdd-0.4[v]) reference data (bu5281 family) (*)the above data is ability value of sample, it is not guaranteed. bu5281g: -40[ ] ~ +85[ ] bu5281sg: -40[ ] ~ +105[ ] 0 10 20 30 40 0.0 0.5 1.0 1.5 2.0 2.5 3.0 output vol ta ge [v ] output source current [ma] 0 20 40 60 80 0.0 0.5 1.0 1.5 2.0 2.5 3.0 output vol ta ge [v ] output sink current [ma] 0 1 2 3 4 5 6 -60 -30 0 30 60 90 120 ambient temperature [ ] output v oltag e high [v] 0 20 0 40 0 60 0 80 0 1000 050100150 amb ient temp erature [ ] po wer diss ipatio n [ mw ] . 0 0. 2 0. 4 0. 6 0. 8 1 12 3 45 6 supp ly v oltage [v] supply current [ a] bu5281 famil y 0 0. 2 0. 4 0. 6 0. 8 1 -60-30 0 30 60 90120 a mbi ent te mpe ra ture [ ] suppl y current [ma ] bu5281 famil y 0 5 10 15 20 1234 56 supp ly v oltage [v] output voltag e lo w [ mv] bu5281 famil y 0 1 2 3 4 5 6 12 34 56 suppl y vol tage [v] outp ut v oltage high [v] bu5281 family 0 5 10 15 20 -60-30 0 30 60 90120 ambient temperature [ ] o utp ut vol tage l ow [mv] bu5281 famil y bu5281 famil y 0 10 20 30 40 50 60 - 60 - 30 0 3 0 60 90 120 ambient temperature[ ] output sink current [ma] bu5281 famil y bu5281 family bu5281 famil y 85 bu5281 famil y 0 20 40 60 80 -6 0 - 30 0 30 6 0 90 120 ambie nt temperature [ ] output source current [ma] bu5281 famil y 85 -40 25 105 3.0v 1.8v 5.5v -40 25 85 105 -40 25 85 105 1.8v 5.5v 3.0v -40 25 85 105 5.5v 1.8v 3.0v 1.8v 5.5v 3.0v bu5281g bu5281sg 1.8v 5.5v 3.0v -40 25 85 105 bu5281 famil y 105 supply current ? supply voltage derating curve derating curve supply current ? ambient temperature output voltage high ? supply voltage (rl=10[k ? ]) output voltage high ? ambient temperature (rl=10[k ? ]) output voltage low ? supply voltage (rl=10[k ? ]) output voltage low ? ambient temperature (rl=10[k ? ]) output source current ? output voltage (vdd=3[v]) output sink current ? ambient temperature (vout=vss+0.4[v]) output sink current ? output voltage (vdd=3[v]) fig.116 fig.117 fig.118 fig.119 fig.120 fig.121 fig.122 fig.123 fig.124 fig.125 fig.126 fig.127
technical note 19/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 20 40 60 80 100 1.e+001.e+011.e+021.e+031.e+041.e+051.e+061.e+071.e+08 frequency [hz] gain [d b] 0 50 10 0 15 0 20 0 phase [de g] -10.0 -7 .5 -5 .0 -2 .5 0.0 2.5 5.0 7.5 10 .0 123456 suppl y vo ltage[ v] input offset vo ltage [mv ] 0 20 40 60 80 10 0 12 0 14 0 16 0 -60-30 0 30 60 90120 ambient temperature [ ] large signal vol ta ge ga in [db ] phase gain 0 20 40 60 80 10 0 12 0 14 0 16 0 123456 ambient temperature [ ] large signal vol ta ge ga in [db ] reference data (bu5281 family) (*)the above data is ability value of sample, it is not guaranteed. bu5281g: -40[ ] ~ +85[ ] bu5281sg: -40[ ] ~ +105[ ] 0.0 1.0 2.0 3.0 4.0 -60 -30 0 30 60 90 120 ambient temperature [ ] slew rate l-h [v/ s] -10.0 -7 .5 -5 .0 -2 .5 0.0 2.5 5.0 7.5 10 .0 -6 0 -30 0 30 60 9 0 120 ambie nt temperature [ ] input offset v oltage [mv] 0 30 60 90 120 150 -6 0 - 30 0 30 60 90 1 20 amb ient temp erature [ ] p ower s up ply re je ct io n rat i o [db ] 0.0 2.0 4.0 6.0 8.0 10.0 -60 -30 0 30 60 90 120 ambie nt temperature [ ] sl ew rate h-l [v/ s] bu5281 famil y bu5281 famil y -15 -10 -5 0 5 10 15 -10123 input vo ltage [v] input offse t voltag e [mv] 0 20 40 60 80 10 0 12 0 1234 56 supply voltage [v] common mode rejection ratio [db] bu5281 famil y 0 20 40 60 80 10 0 12 0 -6 0 - 30 0 30 60 9 0 120 ambie nt temperature [ ] c omm on mo de re jec ti on ra ti o [d b] bu5281 famil y bu5281 family bu5281 famil y bu5281 famil y bu5281 family bu5281 family bu5281 famil y 5.5v 1.8v 3.0v 25 -40 25 85 105 5.5v 1.8v 3.0v 5.5v 1.8v 3.0v 5.5v 1.8v 3.0v -40 25 85 105 -40 85 105 -40 25 85 105 5.5v 1.8v 3.0v bu5281 family voltage gain frequency common mode rejection ratio ? supply voltage (vdd=3[v]) slew rate l-h ? ambient temperature slew rate h-l ? ambient temperature input offset voltage ? supply voltage (vicm=vdd-1.2[v], vout=1.5[v]) input offset voltage ? ambient temperature (vicm=vdd-1.2[v], vout=1.5[v]) input offset voltage ? input voltage (vdd=3[v]) large signal voltage gain ? supply voltage large signal voltage gain ? ambient temperature power supply rejection ratio ? ambient temperature common mode rejection ratio ? ambient temperature fig.128 fig.129 fig.130 fig.131 fig.132 fig.133 fig.134 fig.135 fig.136 fig.137 fig.138
technical note 20/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg test circuit 1 null method input-output full swing bu7291/bu7255 family vdd, vss, ek, vicm unit:[v] parameter vf s1 s2 s3 vdd vss ek vicm calculation input offset voltage vf1 on on off 3 0 -1.5 3 1 large signal voltage gain vf2 on on on 3 0 -0.5 1.5 2 vf3 -2.5 common-mode rejection ratio (input common-mode voltage range) vf4 on on off 3 0 -1.5 0 3 vf5 3 power supply rejection ratio vf6 on on off 2.4 0 -1.2 0 4 vf7 5.5 ground sense bu7495/bu7481/bu7485/bu5281 family vdd, vss, ek, vicm unit:[v] parameter vf s1 s2 s3 vdd vss ek vicm calculation input offset voltage vf1 on on off 3 0 -1.5 1.8 1 large signal voltage gain vf2 on on on 3 0 -0.5 0.9 2 vf3 -2.5 common-mode rejection ratio (input common-mode voltage range) vf4 on on off 3 0 -1.5 0 3 vf5 1.8 power supply rejection ratio bu7495/bu7481/bu5281 vf6 on on off 1.8 0 -0.9 0 4 bu7485 3.0 vf7 5.5 calculation 1. input offset voltage (vio) 2. large signal voltage gain (av) 3 common-mode rejection ratio (cmrr) 4. power supply rejection ratio (psrr) fig.139 test circuit 1 (one channel only) vio |v f1| = 1+rf/rs [v] av |v f2-v f3| = 2(1+rf/rs) [db] 20log cmrr |v f4-v f5| = 1.8(1+rf/rs) [db] 20log ps rr |v f6-v f7| = 3.8(1+rf/rs) [db] 20log vicm(1+rf/rs) v dd (1+rf/rs) [db] [db] vdd rf=50[k ] ri=1[m ] 0.015[f] rs=50[ ] sw2 rl sw3 500[k ] 500[k ] 0.01[f] ek 15[v] dut vss vrl 50[k ] vicm sw1 0.015[f] ri=1[m ] vo vf 1000[pf] 0.1[f] -15[v] null v rs=50[ ]
technical note 21/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg test circuit 2 switch condition sw no. sw 1 sw 2 sw 3 sw 4 sw 5 sw 6 sw 7 sw 8 sw 9 sw 10 sw 11 sw 12 supply current off off on off on off off off off off off off maximum output voltage (rl=10[k ? ]) off on off off on off off on off off on off output current off on off off on off off off off on off off slew rate off off on off off off on off on off off on maximum frequency on off off on on off off off on off off on fig.142 slew rate input output wave (ground sense bu7495/bu7481/bu7485/bu5281 family) fig.140 test circuit 2 fig.141 slew rate input output wave (input-output full swing bu7291/bu7255 family) sw1 sw2 sw9 sw10 sw11 sw8 sw5 sw6 sw7 cl sw12 sw4 sw3 r1 1[k ] r2 100[k ] rl gnd vdd=3[v] vo vin- vin+ t vin [v] 3[v p-p ] 3[v] 0[v] vout [v] sr = v / t t t 3[v] 0[v] v t vin [v] 1.8[v p-p ] 1.8[v] 0[v] vout [v] sr = v / t t t 1.8[v] 0[v] v
technical note 22/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg test circuit 3 channel separation schematic diagram input-output full swing bu7291/bu7255 family ground sense bu7495/bu7481/bu7485/bu5281 family fig.143 test circuit 3 fig.144 input-output full swing schematic diagram fig.145 ground sense schematic diagram in + vbias out class a b control vbias in vdd vss vdd vss in + vbias vbias in \ out class a b control v vdd vss r2=100[k ] r1=1[k ] vdd vss vout1 =1[vrms] v vin vout2 cs=20log 100 vout1 vout2 r1//r2 r1//r2 r1=1[k ] r2=100[k ]
technical note 23/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg examples of circuit voltage follower inverting amplifier non-inverting amplifier fig.147 inverting amplifier circuit fig.148 non-inverting amplifier circuit voltage gain is 0 [db]. this circuit controls output voltage (vout) equal input voltage (vin), and keeps vout with stable because of high input impedance and low output impedance. vout is shown next formula. vout=vin for inverting amplifier, vin is amplified by voltage gain decided r1 and r2, and phase reversed voltage is outputted. vout is shown next formula. vout=-(r2/r1) ? vin input impedance is r1. for non-inverting amplifier, vin is amplified by voltage gain decided r1 and r2, and phase is same with vin. vout is shown next formula. vout=(1+r2/r1) ? vin this circuit realizes high input impedance because input impedance is operational amplifier?s input impedance. fig.146 voltage follower vss vout vin vdd r2 r1 vss r1//r2 vin vout vdd vss r2 vdd vin vout r1
technical note 24/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg 0 a mbient temperature ta [ ] p2 p1 25 125 75 100 50 [w] pd(max) tj(max) ja2 ja1 ja2 < ja1 (b) derating curve derating curve power dissipation (total loss) indicates the power that can be consumed by ic at ta=25 (normal temperature).ic is heated when it consumed power, and the temperature of ic ship bec omes higher than ambient temper ature. the temperature that can be accepted by ic chip depends on circuit configurati on, manufacturing process, and consumable power is limited. power dissipation is determined by the temperature allowed in ic chip (maximum junction temperature) and thermal resistance of package (heat dissipation capability). the maximum junction temperature is typically equal to the maximum value in the storage package (heat dissipation capability). t he maximum junction temperature is typically equal to the maximum value in the storage temperature r ange. heat generated by consumed power of ic radiates from the mold resin or lead frame of the package. the parameter which indicates this heat dissipation capability (hardness of heat release) is called thermal resistance, represented by the symbol j-a[ /w]. the temperature of ic inside the package can be estimated by this thermal resistance. fig.149 (a) shows the model of thermal resi stance of the package. thermal resistance ja, ambient temperature ta, junction temperature tj, and power dissipation pd can be calculated by the equation below: ja = (tj ta) / pd [ /w] ????? ( ) derating curve in fig.149 (b) indicates power that can be consumed by ic with reference to ambient temperature. power that can be consumed by ic begins to attenuate at certain ambient temperature. this gradient is determined by thermal resistance ja. thermal resistance ja depends on chip size, power consumptio n, package, ambient te mperature, package condition, wind velocity, etc even when t he same of package is used. thermal reduction curve indicates a reference value measured at a specified condition. fig. 150(c)-(d) show a derating curve for an example of bu7291 family, bu7255 family, , bu7495 family , bu7481 family , bu7485 family , bu5281 family. when using the unit above ta=25[ ], subtract the value above per degree[ ]. permissible dissipation is the value when fr4 glass epoxy board 70[mm] 70[mm] 1.6[mm] (cooper foil area below 3[%]) is mounted (*20) (*21) unit 5.4 5.35 [mw/ ] 0 200 400 600 800 1000 0 50 100 150 am bient tem perature[ ] power dissipation [mw] 85 535[mw] 540[mw] 0 200 400 600 800 1000 0 50 100 150 ambient tem perature[ ] pow er dissipation [m w ] 105 535[mw] 540[mw] (c) bu7291g bu7481g bu7485g (d) bu7291sg bu7481sg bu7485sg bu5281sg bu7255shfv bu7495shfv bu5281g BU7255HFV bu7495hfv (a) thermal resistance a mbient temperature ta [ ] chip surface temperature tj[ ] pd[w] ja = (tj ta ) / p d [ / w] package face temperature (a) thermal resistance ta [ ] power dissipation of ic fig.149 thermal resistance and derating fig.150 derating curve bu7291g(*20) bu7481g(*20) bu7485g(*20) bu5281g(*20) BU7255HFV(*21) bu7495hfv(*21) bu7255shfv(*21) bu7495shfv(*21) bu7291sg(*20) bu7481sg(*20) bu7485sg(*20) bu5281sg(*20)
technical note 25/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg notes for use 1) absolute maximum ratings absolute maximum ratings are the values which indicate t he limits, within which the given voltage range can be safely charged to the terminal. however, it does not guarantee the circuit operation. 2) applied voltage to the input terminal for normal circuit operation of voltage comparator, please input voltage for its input terminal within input common mode voltage vdd + 0.3[v]. then, regardless of power supply voltage, vss-0.3[v] c an be applied to input terminals without deterioration or destruction of its characteristics. 3) operating power supply (split power supply/single power supply) the operational amplifier operates if a given level of voltage is applied between vdd and vss. therefor e, the operational amplifier can be operated under single power supply or split power supply. 4) power dissipation (pd) if the ic is used under excessive power dissipation. an incr ease in the chip temperature wi ll cause deterioration of the radical characteristics of ic. for example, reduction of curr ent capability. take consider ation of the effective power dissipation and thermal design with a sufficient margin. pd is reference to the provided power dissipation curve. 5) output short circuit if short circuit occurs between the output terminal and vdd te rminal, excessive in output current may flow and generate heat, causing destruction of the ic. take due care. 6) using under strong electromagnetic field be careful when using the ic under strong elec tromagnetic field because it may malfunction. 7) usage of ic when stress is applied to the ic through warp of the printed circuit board, the characteristics may fluctuate due to the piezo effect. be careful of the warp of the printed circuit board. 8) testing ic on the set board when testing ic on the set board, in cases where the capaci tor is connected to the low impedance, make sure to discharge per fabrication because there is a possibility that ic may be damaged by stress. when removing ic from the set board, it is essential to cut supply volt age. as a countermeasure against the stat ic electricity, observe proper grounding during fabrication process and take due care when carrying and storage it. 9) the ic destruction caused by capacitive load the transistors in circuits may be damaged when vdd terminal and vss terminal is shorted with the charged output terminal capacitor.when ic is used as a operational amplifier or as an application circuit, where oscillation is not activated by an output capacitor,the output capacitor must be kept below 0.1[ f] in order to prevent the damage mentioned above. 10) decupling capacitor insert the decupling capacitance between vdd and vss, for stable operation of operational amplifier. 11) latch up be careful of input voltage that exceed the vdd and vss. w hen cmos device have sometimes occur latch up operation. and protect the ic from abnormaly noise.
technical note 26/26 www.rohm.com 2010.12 - rev. a ? 2010 rohm co., ltd. all rights reserved. bu7291g,bu7291sg,BU7255HFV,bu7255shfv, bu7495hfv,bu7495shfv,bu7481g,bu7481sg,bu7485g,bu7485sg,bu5281g,bu5281sg ordering part number b u 7 4 9 5 s h f v - t r part no. part no. input-output full swing 7291 , 7291s , 7255 , 7255s ground sense 7495 , 7495s , 7481 , 7481s 7485 , 7485s , 5281 , 5281s package g: ssop5 hfv: hvsof5 packaging and forming specification tr: embossed tape and reel direction of feed reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed the direction is the 1pin of product is at the upper right when you hold reel on the left hand and you pull out the tape on the right hand 3000pcs tr () 1pin (unit : mm) ssop5 2.9 0.2 0.13 4 + 6 ? 4 1.6 2.8 0.2 1.1 0.05 0.05 0.05 + 0.2 ? 0.1 + 0.05 ? 0.03 0.42 + 0.05 ? 0.04 0.95 5 4 12 3 1.25max. 0.2min. 0.1 s s direction of feed reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed the direction is the 1pin of product is at the upper right when you hold reel on the left hand and you pull out the tape on the right hand 3000pcs tr () 1pin (unit : mm) hvsof5 s 0.08 m 0.1 s 4 3 2 1 5 (0.05) 1.6 0.05 1.0 0.05 1.6 0.05 1.2 0.05 (max 1.28 include burr) 45 32 1 (0.8) (0.91) (0.3) (0.41) 0.2max 0.13 0.05 0.22 0.05 0.6max 0.5 0.02 +0.03 ? 0.02
r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.

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