1 10 - r ev.1. 1 http://www.elm-tech.com parameter symbol limit unit power supply voltage vdd 7.0 v input voltage vin vss - 0.3 to vdd + 0. 3 v output voltage vout vss - 0.3 to vdd + 0. 3 v output short circuit continuous sec. power dissipation pd 300 mw operating temperature top - 4 0 to + 85 c storage temperature tstg - 55 to + 125 c ELM844x a 280 a low power class-a output cmos dual operational amplifier ELM844xa is a low current consumption-typ.280a cmos dual op-amp provided with a wide common mode input voltage range. it has a quasi rail-to-rail input stage and a class-a rail-to-rail output stage. ELM844xa can operate down to 1.2v. ELM844xa is suitable for portable devices which require low power and a single voltage source. ? battery-operated p ortable devices ? signal process in low power circuit ? low voltage analog circuit g e neral description applica tion maximum a bsolute ratings selection guide elm8 4 4 x a - x symbol a package b: sot-28 d : sop-8 e : tssop-8 b product version a c taping d irection s: refer to pkg file n: refer to pkg file ELM844 x a - x a b c f eatures ? operation from a single power source ? low voltage operation : 1.2v vdd 6.0v ? low current consumption : typ. 2 6 0 a (vdd = 1 .5v) ? n-channel depletion differential input : no gm dependence on input operating points ? c ommon-mode input voltage range : quasi rail-to-rail input 0.08v to vdd - 0.05v(vdd=1.5v) 0.04v to vdd - 0.1v(vdd =3.0v) ? output stage : 90 a class a rail-to-rail output ? unity gain bandwidth : typ. 1 m hz(vdd 1.5v) ? package : sot-28, sop - 8, tssop - 8
2 10 - r ev.1. 1 http://www.elm-tech.com pin no. pin name pin no. pin name 1 outa 5 in+b 2 in-a 6 in-b 3 in +a 7 outb 4 vss 8 vdd s tandard circuit pin configuration tssop - 8 (top view) sop - 8 (top view) so t -2 8 (top view) so t -2 8 marking symbol mark content a 0 to 9 last numeral of a.d. b a to m ( excepted i. ) assembl y month c 0 to 9 lot no. d 0 to 9 and a to z (i, o, x ex cepted .) e so p - 8 tsso p - 8 ? ? ELM844x a 280 a low power class-a output cmos dual operational amp lifier
3 10 - r ev.1. 1 http://www.elm-tech.com electrical characteristics parameter symbol condition min. typ. max. unit input offset voltage vio v cm =vdd /2, unity gain follower 6 mv input bias current iib 1.0 na common-mode input voltage range vcmr for cmrr 4 0db 0.08 1.45 v maximum output voltage swing vouts h vid = 100mv, rl = 20 0k to vss 1.42 v minimum output voltage swing vouts l vid = 100mv, rl = 1 0k to v dd 0.10 v source current isource vout=0.75v, vid=100mv 40 90 a sink current isink vout=0.3v, vid=100mv 1.0 2.5 ma large-signal voltage gain avd rl = 20 0k to vss, vcm=0.75v 110 db common-mode rejection ratio c mrr rl = 20 0k to vss, vcm=0.75v 9 0 db supply voltage rejection ratio p srr rl = 20 0k to vss, v cm =0.75v 70 db current consumption iss v cm =vdd /2, unity gain follower 26 0 62 0 a short current ishortp vout to vss shrot, vid=100mv 100 a ishortn vout to vdd shrot, vid=100mv 4.0 ma unity gain bandwidth gbw 1 m hz slew rate sr rl = 2 00k , cl = 20pf 0.45 1.00 v/ s vss = 0v, top = 25 c vss = 0v, top = 25 c v dd = 1.5 v v dd = 3 . 0 v parameter symbol condition min. typ. max. unit input offset voltage vio v cm =vdd /2, unity gain follower 6 mv input bias current iib 1.0 na common-mode input voltage range vcmr for cmrr 4 0db 0.04 2.90 v maximum output voltage swing vouts h vid = 100mv, rl = 20 0k to vss 2 .80 v minimum output voltage swing vouts l vid = 100mv, rl = 1 0k to v dd 0.10 v source current isource vout=1.5v, vid=100mv 4 5 10 0 a sink current isink vout=0.3v, vid=100mv 3 .0 7 .5 ma large-signal voltage gain avd rl = 20 0k to vss, vcm=1.5v 110 db common-mode rejection ratio c mrr rl = 20 0k to vss, vcm=1.5v 110 db supply voltage rejection ratio p srr rl = 20 0k to vss, v cm =1.5v 100 db current consumption iss v cm =vdd /2, unity gain follower 28 0 72 0 a short current ishortp vout to vss shrot, vid=100mv 110 a ishortn vout to vdd shrot, vid=100mv 25 ma unity gain bandwidth gbw 1 m hz slew rate sr rl = 2 00k , cl = 20pf 0.45 1.00 v/ s parameter symbol condition min. typ. max. unit operating voltage vdd 1.2 6.0 v vss = 0v, top =- 40~+85 c ELM844x a 280 a low power class-a output cmos dual operational amp lifier
4 10 - r ev.1. 1 http://www.elm-tech.com n ote 2) operation from single power source elm84 4 x a is designed to be most suitable for single power source; therefore, ELM844xa is able to share power supply with logic circuit one. meanwhile, ELM844xa can also operate from double power sources. to protect power supplies of ELM844xa and logic circuit from noise, please separate wire from power supply and use decouplin g (bypass ) c apacitor. using the capacitor can improve psrr characteristics, especially on 10khz to 100khz or more. 3) feedback when op-amp circuit is used with feedback resistor, oscillation may happen i n the circuit with loop-gain like unity gain follower. a) when large feedback resistance is used, the phase margin is decreased by its combination with the parasitic capacitance o f the input part of op-amp. in this situation, please connect small capacitor in parallel with feedback resistor as shown in fig -1 . b) f or capacitive load, external resistor in series connection will be effective as shown in fig -2. ( rl = 300 to 500 ) c) being used as an unity gain follow, ELM844xa is able to drive capacitive load of 100pf directly without oscillation. a ) fig -1 b ) fig - 2 1) load resistance ELM844xa is designed for low power consumption applications; hence, the output source current is only 90 a (typ. under the conditions of at vdd =1.5v, vout=0.75v and top=25 c ) . as a result, ELM844xa is not able to maintain output voltage swing when trying to drive small load resistance. considering this, load and feedback resistance for ELM844xa should be selected carefully. elm recommends the following load/feedback resistors depending on power supply voltage range. < power supply voltage > < total resistance value of load/feedback resistor > vdd 5.5v : r 250k vdd 3.6v : r 200k vdd 1.8v : r 150k 4 ) operation at vdd <1.2v ELM844xa is able to maintain operation when supply voltage is below 1.2v (vdd 1.2v) since all input voltage is acceptable within the range of power supply voltage. however, ac characteristics will become weak under this situation because of the decrease of bias current in the ic. for further information, please contact elm. two amplifiers will consume power even if only one amplifier is used. in order to minimize power consumption by the unused amplifier, elm recommends to connect this amplifier as voltage follower circuit and the input terminal (in+) to vdd . 5 ) unused amplifier ELM844x a 280 a low power class-a output cmos dual operational amp lifier
5 10 - r ev.1. 1 http://www.elm-tech.com 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 10 0 2 00 30 0 4 00 5 0 0 top=+25 ? top=+85 ? iss-vdd vdd (v) iss ( ? a) top=-40 ? unity gain, vcm=vdd/2, no load -40 -20 0 20 40 60 80 0 10 0 2 00 30 0 4 00 5 0 0 vdd=1.5v vdd=6.0v iss-top top ( ? ) iss ( ? a) vdd=1.2v unity gain, vcm=vdd/2, no load vdd=3.0v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 0 2 00 30 0 4 00 5 0 0 top=+25 ? top=+85 ? iss-input voltage input voltage (v) iss ( ? a) top=-40 ? unity gain, vdd=3.0v, no load -6.0 -4.0 -2.0 0.0 2.0 4.0 6.0 0 5.0 10.0 15.0 20.0 25.0 offset voltage distribution offset voltage (mv) percent (%) unity gain, vdd=3.0v, vcm=1.5v, no load, top=25 ? 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 vdd=1.5v vdd=6.0v avd-frequency frequency (khz) avd (db) vdd=1.2v vdd=3.0v vcm=vdd/2, 200k ??? load, top=25 ? 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 top=+85 ? avd-frequency frequency (khz) avd (db) top=-40 ? top=+25 ? vdd=3.0v, vcm=1.5v, 200k ??? load 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 10 0 2 00 30 0 4 00 5 0 0 top=+25 ? top=+85 ? iss-vdd vdd (v) iss ( ? a) top=-40 ? unity gain, vcm=vdd/2, no load -40 -20 0 20 40 60 80 0 10 0 2 00 30 0 4 00 5 0 0 vdd=1.5v vdd=6.0v iss-top top ( ? ) iss ( ? a) vdd=1.2v unity gain, vcm=vdd/2, no load vdd=3.0v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 0 2 00 30 0 4 00 5 0 0 top=+25 ? top=+85 ? iss-input voltage input voltage (v) iss ( ? a) top=-40 ? unity gain, vdd=3.0v, no load -6.0 -4.0 -2.0 0.0 2.0 4.0 6.0 0 5.0 10.0 15.0 20.0 25.0 offset voltage distribution offset voltage (mv) percent (%) unity gain, vdd=3.0v, vcm=1.5v, no load, top=25 ? 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 vdd=1.5v vdd=6.0v avd-frequency frequency (khz) avd (db) vdd=1.2v vdd=3.0v vcm=vdd/2, 200k ??? load, top=25 ? 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 top=+85 ? avd-frequency frequency (khz) avd (db) top=-40 ? top=+25 ? vdd=3.0v, vcm=1.5v, 200k ??? load typical c haracteristics ELM844x a 280 a low power class-a output cmos dual operational amp lifier
6 10 - r ev.1. 1 http://www.elm-tech.com 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 vdd=1.5v vdd=6.0v cmrr-frequency frequency (khz) cmrr (db) vdd=1.2v unity gain, vcm=vdd/2, vdd=3.0v 200k ??? load, top=25 ? 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 top=+85 ? top=+25 ? cmrr-frequency frequency (khz) cmrr (db) unity gain, vdd=3.0v, top=-40 ? vcm=1.5v, 200k ??? load 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=1.2v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load 0.0 0.5 1.0 1.5 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=1.5v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=3.0v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=6.0v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 vdd=1.5v vdd=6.0v cmrr-frequency frequency (khz) cmrr (db) vdd=1.2v unity gain, vcm=vdd/2, vdd=3.0v 200k ??? load, top=25 ? 0.001 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 top=+85 ? top=+25 ? cmrr-frequency frequency (khz) cmrr (db) unity gain, vdd=3.0v, top=-40 ? vcm=1.5v, 200k ??? load 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=1.2v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load 0.0 0.5 1.0 1.5 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=1.5v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=3.0v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? cmrr-vcm [vdd=6.0v] vcm (v) cmrr (db) top=-40 ? frequency=10hz, unity gain, 200k ??? load ELM844x a 280 a low power class-a output cmos dual operational amp lifier
7 10 - r ev.1. 1 http://www.elm-tech.com 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 vdd=1.5v vdd=6.0v psrr-frequency frequency (khz) psrr (db) vdd=1.2v unity gain, vcm=vdd/2, vdd=3.0v 200k ??? load, top=25 ? 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 top=+85 ? top=+25 ? psrr-frequency frequency (khz) psrr (db) unity gain, vdd=3.0v, top=-40 ? vcm=1.5v, 200k ??? load 1.0 2.0 3.0 4.0 5.0 6.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 rising edge (top=-40 ? ) falling edge (top=+85 ? ) sr-vdd vdd (v) sr (v/ ? s) falling edge (top=-40 ? ) unity gain, 200k ??? load rising edge (top=+85 ? ) rising edge (top=+25 ? ) falling edge (top=+25 ? ) -40 -20 0 20 40 60 80 0 0.5 1.0 1.5 2.0 falling edge sr-top top ( ? ) sr (v/ ? s) vdd=3.0v, unity gain, 200k ??? load rising edge 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 20 40 60 80 100 top=+25 ? top=+85 ? isource-vout [vdd=1.2v] vout (v) isource ( ? a) top=-40 ? vid=100mv 0.0 0.5 1.0 1.5 0 20 40 60 80 100 120 140 160 top=+25 ? top=+85 ? isource-vout [vdd=1.5v] vout (v) isource ( ? a) top=-40 ? vid=100mv 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 vdd=1.5v vdd=6.0v psrr-frequency frequency (khz) psrr (db) vdd=1.2v unity gain, vcm=vdd/2, vdd=3.0v 200k ??? load, top=25 ? 0.01 0.1 1 10 100 1000 10000 -20 0 20 40 60 80 100 120 top=+85 ? top=+25 ? psrr-frequency frequency (khz) psrr (db) unity gain, vdd=3.0v, top=-40 ? vcm=1.5v, 200k ??? load 1.0 2.0 3.0 4.0 5.0 6.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 rising edge (top=-40 ? ) falling edge (top=+85 ? ) sr-vdd vdd (v) sr (v/ ? s) falling edge (top=-40 ? ) unity gain, 200k ??? load rising edge (top=+85 ? ) rising edge (top=+25 ? ) falling edge (top=+25 ? ) -40 -20 0 20 40 60 80 0 0.5 1.0 1.5 2.0 falling edge sr-top top ( ? ) sr (v/ ? s) vdd=3.0v, unity gain, 200k ??? load rising edge 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 20 40 60 80 100 top=+25 ? top=+85 ? isource-vout [vdd=1.2v] vout (v) isource ( ? a) top=-40 ? vid=100mv 0.0 0.5 1.0 1.5 0 20 40 60 80 100 120 140 160 top=+25 ? top=+85 ? isource-vout [vdd=1.5v] vout (v) isource ( ? a) top=-40 ? vid=100mv ELM844x a 280 a low power class-a output cmos dual operational amp lifier
8 10 - r ev.1. 1 http://www.elm-tech.com 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 50 100 150 200 top=+25 ? top=+85 ? isource-vout [vdd=3.0v] vout (v) isource ( ? a) top=-40 ? vid=100mv 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 50 100 150 200 top=+25 ? top=+85 ? isource-vout [vdd=6.0v] vout (v) isource ( ? a) top=-40 ? vid=100mv 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.5 1.0 1.5 2.0 top=+25 ? top=+85 ? isink-vout [vdd=1.2v] vout (v) isink (ma) top=-40 ? vid=100mv 0.0 0.5 1.0 1.5 0 1.0 2.0 3.0 4.0 5.0 top=+25 ? top=+85 ? isink-vout [vdd=1.5v] vout (v) isink (ma) top=-40 ? vid=100mv 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 5 10 15 20 25 30 35 top=+25 ? top=+85 ? isink-vout [vdd=3.0v] vout (v) isink (ma) top=-40 ? vid=100mv 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? isink-vout [vdd=6.0v] vout (v) isink (ma) top=-40 ? vid=100mv 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 50 100 150 200 top=+25 ? top=+85 ? isource-vout [vdd=3.0v] vout (v) isource ( ? a) top=-40 ? vid=100mv 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 50 100 150 200 top=+25 ? top=+85 ? isource-vout [vdd=6.0v] vout (v) isource ( ? a) top=-40 ? vid=100mv 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.5 1.0 1.5 2.0 top=+25 ? top=+85 ? isink-vout [vdd=1.2v] vout (v) isink (ma) top=-40 ? vid=100mv 0.0 0.5 1.0 1.5 0 1.0 2.0 3.0 4.0 5.0 top=+25 ? top=+85 ? isink-vout [vdd=1.5v] vout (v) isink (ma) top=-40 ? vid=100mv 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 5 10 15 20 25 30 35 top=+25 ? top=+85 ? isink-vout [vdd=3.0v] vout (v) isink (ma) top=-40 ? vid=100mv 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? isink-vout [vdd=6.0v] vout (v) isink (ma) top=-40 ? vid=100mv ELM844x a 280 a low power class-a output cmos dual operational amp lifier
9 10 - r ev.1. 1 http://www.elm-tech.com 1.0 2.0 3.0 4.0 5.0 6.0 0 50 100 150 200 top=+25 ? top=+85 ? short circuit current-vdd vdd (v) short circuit current (ma) top=-40 ? vout to vss short, vid=100mv 1.0 2.0 3.0 4.0 5.0 6.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? short circuit current-vdd vdd (v) short circuit current (ma) top=-40 ? vout to vdd short, vid=100mv 0.1 1 10 100 1000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 top=+25 ? maximum vout-rl [vdd=1.2v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv 0.1 1 10 100 1000 0.0 0.5 1.0 1.5 2.0 top=+25 ? maximum vout-rl [vdd=1.5v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv 0.1 1 10 100 1000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 top=+25 ? maximum vout-rl [vdd=3.0v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv 0.1 1 10 100 1000 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 top=+25 ? maximum vout-rl [vdd=6.0v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv 1.0 2.0 3.0 4.0 5.0 6.0 0 50 100 150 200 top=+25 ? top=+85 ? short circuit current-vdd vdd (v) short circuit current (ma) top=-40 ? vout to vss short, vid=100mv 1.0 2.0 3.0 4.0 5.0 6.0 0 20 40 60 80 100 120 top=+25 ? top=+85 ? short circuit current-vdd vdd (v) short circuit current (ma) top=-40 ? vout to vdd short, vid=100mv 0.1 1 10 100 1000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 top=+25 ? maximum vout-rl [vdd=1.2v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv 0.1 1 10 100 1000 0.0 0.5 1.0 1.5 2.0 top=+25 ? maximum vout-rl [vdd=1.5v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv 0.1 1 10 100 1000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 top=+25 ? maximum vout-rl [vdd=3.0v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv 0.1 1 10 100 1000 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 top=+25 ? maximum vout-rl [vdd=6.0v] rl (k ?? maximum vout (v) top=-40 ? rl is connected between vout and vss. top=+85 ? vid=100mv ELM844x a 280 a low power class-a output cmos dual operational amp lifier
10 10 - r ev.1. 1 http://www.elm-tech.com 1 10 100 1000 10000 100000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 top=+25 ? minimum vout-rl [vdd=1.2v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 1 10 100 1000 10000 100000 0.0 0.5 1.0 1.5 2.0 top=+25 ? minimum vout-rl [vdd=1.5v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 1 10 100 1000 10000 100000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 top=+25 ? minimum vout-rl [vdd=3.0v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 1 10 100 1000 10000 100000 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 top=+25 ? minimum vout-rl [vdd=6.0v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 0.0 2.0 4.0 6.0 8.0 10.0 0.0 0.5 1.0 1.5 0.0 0.5 1.0 1.5 vin pulse response [vdd=1.5v] time ( ? s) vin (v) vout unity gain, 200k ??? load, top=25 ? vout (v) 0.0 2.0 4.0 6.0 8.0 10.0 0.0 1.0 2.0 3.0 0.0 1.0 2.0 3.0 vin pulse response [vdd=3.0v] time ( ? s) vin (v) vout unity gain, 200k ??? load, top=25 ? vout (v) 1 10 100 1000 10000 100000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 top=+25 ? minimum vout-rl [vdd=1.2v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 1 10 100 1000 10000 100000 0.0 0.5 1.0 1.5 2.0 top=+25 ? minimum vout-rl [vdd=1.5v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 1 10 100 1000 10000 100000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 top=+25 ? minimum vout-rl [vdd=3.0v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 1 10 100 1000 10000 100000 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 top=+25 ? minimum vout-rl [vdd=6.0v] rl ( ?? minimum vout (v) top=-40 ? rl is connected between vdd and vout. top=+85 ? vid=100mv 0.0 2.0 4.0 6.0 8.0 10.0 0.0 0.5 1.0 1.5 0.0 0.5 1.0 1.5 vin pulse response [vdd=1.5v] time ( ? s) vin (v) vout unity gain, 200k ??? load, top=25 ? vout (v) 0.0 2.0 4.0 6.0 8.0 10.0 0.0 1.0 2.0 3.0 0.0 1.0 2.0 3.0 vin pulse response [vdd=3.0v] time ( ? s) vin (v) vout unity gain, 200k ??? load, top=25 ? vout (v) ELM844x a 280 a low power class-a output cmos dual operational amp lifier
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