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1 ? fn6037.2 isl43143, isl43144, ISL43145 low-voltage, single and dual supply, quad spst, high performance analog switches the intersil isl43143?isl4314 5 devices are cmos, precision, quad spst analog switches designed to operate from a single +2v to +12v supply or from a 2v to 6v supply. targeted applications include battery powered equipment that benefit from the devices? low power consumption (<1 w), low leakage currents (5na max), and fast switching speeds (t on = 52ns, t off = 40ns). a 5 ? maximum r on flatness ensures signal fidelity, while channel-to-channel mismatch is guaranteed to be less than 2 ? . the isl43143/isl43144/ISL43145 are quad single-pole/ single-throw (spst) devices. t he isl43143 has four normally closed (nc) switches; the isl43144 has four normally open (no) switches; the ISL43145 has two no and two nc switches and can be used as a dual spdt, or a dual 2:1 multiplexer. table 1 summarizes the perfo rmance of this family. features ? fully specified for 10% tolerances at v s = 5v and v+ = 12v, 5v and 3.3v ? four separately controlled spst switches ? pin compatible with dg411/dg412/dg413 ? on resistance (r on max.) . . . . . . . . . . . . . . . . . . . . 25 ? ?r on matching between channels. . . . . . . . . . . . . . . . . . <1 ? ? low power consumption (p d ) . . . . . . . . . . . . . . . . . . . .<1 w ? low off leakage current (max at 85 o c) . . . . . . . . . 2.5na ? fast switching action -t on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52ns -t off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns ? minimum 2000v esd protection per method 3015.7 ? ttl, cmos compatible ? pb-free available applications ? battery powered, handheld, and portable equipment - barcode scanners - laptops, notebooks, palmtops ? communications systems -radios - xdsl and pbx / pabx - rf ?tee? switches - base stations ? test equipment - medical ultrasound - electrocardiograph -ate ? audio and video switching ? general purpose circuits - +3v/+5v dacs and adcs - digital filters - operational amplifier gain switching networks - high frequency analog switching - high speed multiplexing related literature ? technical brief tb363 ?guidelines for handling and processing moisture sensit ive surface mount devices (smds)? ? an557 ?recommended test procedures for analog switches? table 1. features at a glance isl43143 isl43144 ISL43145 number of switches 4 4 4 configuration all nc all no 2 nc/2 no 4.5v r on 18 ? 18 ? 18 ? 4.5v t on /t off 52ns/40ns 52ns/40ns 52ns/40ns 10.8v r on 14 ? 14 ? 14 ? 10.8v t on /t off 40ns/27ns 40ns/27ns 40ns/27ns 4.5v r on 30 ? 30 ? 30 ? 4.5v t on /t off 64ns/29ns 64ns/29ns 64ns/29ns 3v r on 51 ? 51 ? 51 ? 3v t on /t off 120ns/50ns 120ns/50ns 120ns/50ns packages 16 ld tssop, 16ld qfn 4x4 data sheet july 2004 caution: these devices are sensitive to electrosta tic discharge; follow proper ic handling procedures. 1-888-intersil or 321-724-7143 | intersil (and design) is a registered trademark of intersil americas inc. copyright intersil americas inc. 2003, 2004. all rights reserved all other trademarks mentioned are the property of their respective owners.
2 pinouts (note 1) isl43143 (tssop) top view isl43143 (qfn) top view isl43144 (tssop) top view isl43144 (qfn) top view ISL43145 (tssop) top view ISL43145 (qfn) top view note: 1. switches shown for logic ?0? input. 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 in1 com1 nc1 v- gnd nc4 in4 com4 in2 nc2 v+ n.c. nc3 com3 in3 com2 1 3 4 15 nc1 v- gnd nc4 com1 in1 in2 com2 16 14 13 2 12 10 9 11 6 578 nc2 v+ n.c. nc3 com4 in4 in3 com3 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 in1 no1 com1 v- gnd com4 in4 no4 in2 com2 v+ n.c. com3 no3 in3 no2 1 3 4 15 com1 v- gnd com4 no1 in1 in2 no2 16 14 13 2 12 10 9 11 6 578 com2 v+ n.c. com3 no4 in4 in3 no3 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 in1 no1 com1 v- gnd com4 in4 no4 in2 nc2 v+ n.c. nc3 com3 in3 com2 1 3 4 15 com1 v- gnd com4 no1 in1 in2 com2 16 14 13 2 12 10 9 11 6 578 nc2 v+ n.c. nc3 no4 in4 in3 com3 isl43143, isl43144, ISL43145
3 truth table logic isl43143 isl43144 ISL43145 sw 1, 2, 3, 4 sw 1, 2, 3, 4 sw 1, 4 sw 2, 3 0on offoffon 1 off on on off note: logic ?0? 0.8v. logic ?1? 2.4v. pin descriptions pin function v+ positive power supply input v- negative power supply input. connect to gnd for single supply configurations. gnd ground connection in digital control input com analog switch common pin no analog switch normally open pin nc analog switch normally closed pin n.c. no internal connection ordering information part no. (brand) * temp. range ( o c) package pkg. dwg. # isl43143iv -40 to 85 16 ld tssop m16.173 isl43143ivz (note 2) -40 to 85 16 ld tssop (pb-free) m16.173 isl43143ir -40 to 85 16 ld qfn l16.4x4 isl43143irz (note 2) -40 to 85 16 ld qfn (pb-free) l16.4x4 isl43144iv -40 to 85 16 ld tssop m16.173 isl43144ivz (note 2) -40 to 85 16 ld tssop (pb-free) m16.173 isl43144ir -40 to 85 16 ld qfn l16.4x4 isl43144irz (note 2) -40 to 85 16 ld qfn (pb-free) l16.4x4 ISL43145iv -40 to 85 16 ld tssop m16.173 ISL43145ivz (note 2) -40 to 85 16 ld tssop (pb-free) m16.173 ISL43145ir -40 to 85 16 ld qfn l16.4x4 ISL43145irz (note 2) -40 to 85 16 ld qfn (pb-free) l16.4x4 *most surface mount devices are available on tape and reel; add ?-t? to suffix. note: 2. intersil pb-free products employ special pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both snpb and pb-free soldering operations. intersil pb-free products are msl classified at pb-free peak reflow temperatures that meet or exceed the pb-free requirements of ipc/jedec j std-020b. isl43143, isl43144, ISL43145
4 absolute maximum rati ngs thermal information v+ to v- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to15v v+ to gnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to15v v- to gnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15 to 0.3v all other pins (note 3) . . . . . . . . . . . . . ((v-) - 0.3v) to ((v+) + 0.3v) continuous current (any terminal) . . . . . . . . . . . . . . . . . . . . . 30ma peak current, in, no, nc, or com (pulsed 1ms, 10% duty cycle, max) . . . . . . . . . . . . . . . . . 100ma esd rating (per mil-std-883 method 3015). . . . . . . . . . . . . .>2kv operating conditions temperature range isl4314xix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 o c to 85 o c thermal resistance (typical) ja ( o c/w) 16 ld tssop package (note 4) . . . . . . . . . . . . . . . 150 16 ld qfn package (note 5). . . . . . . . . . . . . . . . . . 75 maximum junction temperature (plastic package) . . . . . . . 150 o c moisture sensitivity (see technical brief tb363) all packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . level 1 maximum storage temperature range. . . . . . . . . . . . -65 o c to 150 o c maximum lead temperature (soldering 10s) . . . . . . . . . . . . 300 o c (tssop - lead tips only) caution: stresses above those listed in ?abs olute maximum ratings? may cause permanent dam age to the device. this is a stress o nly rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. notes: 3. signals on nc, no, com, or in exceeding v+ or v- are clamped by internal diodes. limit forward diode current to maximum curre nt ratings. 4. ja is measured with the component mounted on a low effective ther mal conductivity test board in free air. see tech brief tb379 fo r details. 5. ja is measured in free air with the component mounted on a high e ffective thermal conductivity test board with ?direct attach? fe atures. see tech brief tb379 and tech brief tb389. electrical specifications: 5v supply test conditions: v supply = 4.5v to 5.5v, gnd = 0v, v inh = 2.4v, v inl = 0.8v (note 5), unless otherwise specified parameter test conditions temp ( o c) (note 6) min typ (note 6) max units analog switch characteristics analog signal range, v analog full v- - v+ v on resistance, r on v s = 4.5v, i com = 10ma, v no or v nc = 3.5v, see figure 5 25 - 18 25 ? full - - 30 ? r on matching between channels, ? r on v s = 4.5v, i com = 10ma, v no or v nc = 3v 25 - 0.5 2 ? full - - 4 ? r on flatness, r flat(on) v s = 4.5v, i com = 10ma, v no or v nc = 0v, 3v, note 8 25 - - 5 ? full - - 5 ? no or nc off leakage current, i no(off) or i nc(off) v s = 5.5v, v com = 4.5v, v no or v nc = + 4.5v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com off leakage current, i com(off) v s = 5.5v, v com = 4.5v, v no or v nc = + 4.5v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com on leakage current, i com(on) v s = 5.5v, v com = v no or v nc = 4.5v, note 7 25 -0.2 - 0.2 na full -5 - 5 na digital input characteristics input voltage high, v inh full 2.4 1.6 - v input voltage low, v inl full - 1.5 0.8 v input current, i inh , i inl v s = 5.5v, v in = 0v or v+ full -1 - 1 a dynamic characteristics turn-on time, t on v s = 4.5v, v no or v nc = 3v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 52 65 ns full - - 75 ns turn-off time, t off v s = 4.5v, v no or v nc = 3v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 40 50 ns full - - 55 ns break-before-make time delay (ISL43145 only), t d v s = 5.5v, v no or v nc = 3v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 3 full 5 19 - ns charge injection, q c l = 1.0nf, v g = 0v, r g = 0 ? , see figure 2 25 - - 5 pc no or nc off capacitance, c off f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 10 - pf isl43143, isl43144, ISL43145
5 com off capacitance, c com(off) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 26 - pf com on capacitance, c com(on) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 34 - pf off isolation r l = 50 ? , c l = 15pf, f = 1mhz, v no or v nc = 1v rms , see figures 4 and 6 25 - 71 - db crosstalk, note 9 25 - -89 - db power supply rejection ratio r l = 50 ? , c l = 5pf, f = 1mhz 25 - 58 - db power supply characteristics power supply range full 2- 6v positive supply current, i+ v s = 5.5v, v in = 0v or v+, switch on or off 25 -1 0.01 1 a full -1 - 1 a negative supply current, i- 25 -1 0.01 1 a full -1 - 1 a notes: 6. v in = input voltage to perform proper function. 7. the algebraic convention, whereby the most negative value is a minimum and the most pos itive a maximum, is used in this data sheet. 8. leakage parameter is 100% tested at high temp, and guaranteed by correlation at 25 o c. 9. flatness is defined as the delta between the maximum and minimum r on values over the specified voltage range. 10. between any two switches. electrical specifications: 5v supply test conditions: v+ = +4.5v to +5.5v, v- = gnd = 0v, v inh = 2.4v, v inl = 0.8v (note 5), unless otherwise specified parameter test conditions temp ( o c) min (note 6) typ max (note 6 )units analog switch characteristics analog signal range, v analog full 0 - v+ v on resistance, r on v+ = 4.5v, i com = 1.0ma, v no or v nc = 3.5v, see figure 5 25 - 30 40 ? full - - 50 ? r on matching between channels, ? r on v+ = 4.5v, i com = 1.0ma, v no or v nc = 3v 25 - 0.5 3 ? full - - 4 ? r on flatness, r flat(on) v+ = 5.5v, i com = 1.0ma, v no or v nc = 1v, 2v, 3v, note 8 25 - 4.4 6 ? full - - 8 ? no or nc off leakage current, i no(off) or i nc(off) v+ = 5.5v, v com = 1v, 4.5v, v no or v nc = 4.5v, 1v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com off leakage current, i com(off) v+ = 5.5v, v com = 1v, 4.5v, v no or v nc = 4.5v, 1v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com on leakage current, i com(on) v+ = 5.5v, v com = v no or v nc = 1v, 4.5v, note 7 25 -0.2 - 0.2 na full -5 - 5 na digital input characteristics input voltage high, v inh full 2.4 1.5 - v input voltage low, v inl full - 1.4 0.8 v input current, i inh , i inl v+ = 5.5v, v in = 0v or v+ full -1 - 1 a dynamic characteristics turn-on time, t on v+ = 4.5v, v no or v nc = 3v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 64 80 ns full - - 90 ns turn-off time, t off v+ = 4.5v, v no or v nc = 3v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 29 40 ns full - - 45 ns break-before-make time delay (ISL43145 only), t d v+ = 5.5v, v no or v nc = 3v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 3 full 15 39 - ns electrical specifications: 5v supply test conditions: v supply = 4.5v to 5.5v, gnd = 0v, v inh = 2.4v, v inl = 0.8v (note 5), unless otherwise specified (continued) parameter test conditions temp ( o c) (note 6) min typ (note 6) max units isl43143, isl43144, ISL43145
6 charge injection, q c l = 1.0nf, v g = 0v, r g = 0 ?, see figure 2 25 - 1.2 2 pc no or nc off capacitance, c off f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 10 - pf com off capacitance, c com(off) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 26 - pf com on capacitance, c com(on) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 34 - pf off isolation r l = 50 ? , c l = 15pf, f = 1mhz, v no or v nc = 1v rms , see figures 4 and 6 25 - 71 - db crosstalk, note 9 25 - -89 - db power supply rejection ratio r l = 50 ? , c l = 5pf, f = 1mhz 25 - 58 - db power supply characteristics positive supply current, i+ v+ = 5.5v, v in = 0v or v+, switch on or off 25 -1 0.01 1 a full -1 - 1 a negative supply current, i- 25 -1 0.01 1 a full -1 - 1 a electrical specifications: 3.3v supply test conditions: v+ = +3.0v to +3.6v, v- = gnd = 0v, v inh = 2.4v, v inl = 0.8v (note 5), unless otherwise specified parameter test conditions temp ( o c) min (note 6) typ max (note 6 )units analog switch characteristics analog signal range, v analog full 0 - v+ v on resistance, r on v+ = 3v, i com = 1.0ma, v no or v nc = 1.5v see figure 5 25 - 51 60 ? full - - 70 ? r on matching between channels, ? r on v+ = 3v, i com = 1.0ma, v no or v nc = 1.5v 25 - 0.5 3 ? full - - 4 ? r on flatness, r flat(on) v+ = 3v, i com = 1.0ma, v no or v nc = 0.5v, 1.5v, note 8 25 - 12 17 ? full - - 17 ? no or nc off leakage current, i no(off) or i nc(off) v+ = 3.6v, v com = 1v, 3v, v no or v nc = 3v, 1v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com off leakage current, i com(off) v+ = 3.6v, v com = 1v, 3v, v no or v nc = 3v, 1v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com on leakage current, i com(on) v+ = 3.6v, v com = v no or v nc = 1v, 3v, note 7 25 -0.2 - 0.2 na full -5 - 5 na digital input characteristics input voltage high, v inh full 2.4 1.0 - v input voltage low, v inl full - 0.9 0.8 v input current, i inh , i inl v+ = 3.6v, v in = 0v or v+ full -1 - 1 a dynamic characteristics turn-on time, t on v+ = 3.0v, v no or v nc = 1.5v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 120 138 ns full - - 160 ns turn-off time, t off v+ = 3.0v, v no or v nc = 1.5v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 50 60 ns full - - 65 ns break-before-make time delay (ISL43145 only), t d v+ = 3.6v, v no or v nc = 1.5v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 3 full 30 60 - ns charge injection, q c l = 1.0nf, v g = 0v, r g = 0 ?, see figure 2 25 - 1 2 pc no or nc off capacitance, c off f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 10 - pf com off capacitance, c com(off) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 26 - pf com on capacitance, c com(on) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 34 - pf electrical specifications: 5v supply test conditions: v+ = +4.5v to +5.5v, v- = gnd = 0v, v inh = 2.4v, v inl = 0.8v (note 5), unless otherwise specified (continued) parameter test conditions temp ( o c) min (note 6) typ max (note 6 )units isl43143, isl43144, ISL43145
7 off isolation r l = 50 ? , c l = 15pf, f = 1mhz, v no or v nc = 1v rms , see figures 4 and 6 25 - 71 - db crosstalk, note 9 25 - -89 - db power supply rejection ratio r l = 50 ? , c l = 5pf, f = 1mhz 25 - 58 - db power supply characteristics positive supply current, i+ v+ = 3.6v, v in = 0v or v+, switch on or off 25 -1 0.01 1 a full -1 - 1 a negative supply current, i- 25 -1 0.01 1 a full -1 - 1 a electrical specific ations: 12v supply test conditions: v+ = +10.8v to +13.2v, v- = gnd = 0v, v inh = 3.0v, v inl = 0.8v (note 5), unless otherwise specified parameter test conditions temp ( o c) min (note 6) typ max (note 6 )units analog switch characteristics analog signal range, v analog full 0 - v+ v on resistance, r on v+ = 10.8v, i com = 1.0ma, v no or v nc = 9v see figure 5 25 - 14 20 ? full - - 30 ? r on matching between channels, ? r on v+ = 10.8v, i com = 1.0ma, v no or v nc = 9v 25 - 0.3 2 ? full - - 4 ? r on flatness, r flat(on) v+ = 13.2v, i com = 1.0ma, v no or v nc = 3v, 6v, 9v, note 8 25 - 1.7 2 ? full - - 3 ? no or nc off leakage current, i no(off) or i nc(off) v+ = 13v, v com = 1v, 12v, v no or v nc = 12v, 1v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com off leakage current, i com(off) v+ = 13v, v com = 1v, 12v, v no or v nc = 12v, 1v, note 7 25 -0.1 - 0.1 na full -2.5 - 2.5 na com on leakage current, i com(on) v+ = 13v, v com = v no or v nc = 1v, 12v, note 7 25 -0.2 - 0.2 na full -5 - 5 na digital input characteristics input voltage high, v inh full 3.2 2.8 - v input voltage low, v inl full - 2.2 0.8 v input current, i inh , i inl v+ = 13v, v in = 0v or v+ full -1 - 1 a dynamic characteristics turn-on time, t on v+ = 10.8v, v no or v nc = 10v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 40 50 ns full - - 83 ns turn-off time, t off v+ = 10.8v, v no or v nc = 10v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 1 25 - 27 35 ns full - - 40 ns break-before-make time delay (ISL43145 only), t d v+ = 13.2v, v no or v nc = 10v, r l = 300 ? , c l = 35pf, v in = 0 to 3v, see figure 3 full 5 20 - ns charge injection, q c l = 1.0nf, v g = 0v, r g = 0 ?, see figure 2 25 - 12 14 pc no or nc off capacitance, c off f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 10 - pf com off capacitance, c com(off) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 26 - pf com on capacitance, c com(on) f = 1mhz, v no or v nc = v com = 0v, see figure 7 25 - 34 - pf off isolation r l = 50 ? , c l = 15pf, f = 1mhz, v no or v nc = 1v rms , see figures 4 and 6 25 - 71 - db crosstalk, note 9 25 - -89 - db power supply rejection ratio r l = 50 ? , c l = 5pf, f = 1mhz 25 - 58 - db electrical specifications: 3.3v supply test conditions: v+ = +3.0v to +3.6v, v- = gnd = 0v, v inh = 2.4v, v inl = 0.8v (note 5), unless otherwise specified (continued) parameter test conditions temp ( o c) min (note 6) typ max (note 6 )units isl43143, isl43144, ISL43145
8 power supply characteristics positive supply current, i+ v+ = 13v, v in = 0v or v+, switch on or off 25 -1 0.01 1 a full -1 - 1 a negative supply current, i- 25 -1 0.01 1 a full -1 - 1 a test circuits and waveforms logic input waveform is inverted for switches that have the opposite logic sense. figure 1a. measurement points repeat test for all switches. c l includes fixture and stray capacitance. figure 1b. test circuit figure 1. switching times logic input waveform is inverted for switches that have the opposite logic sense. figure 2a. measurement points repeat test for all switches. c l includes fixture and stray capacitance. figure 2b. test circuit figure 2. charge injection electrical specifications: 12v supply test conditions: v+ = +10.8v to +13.2v, v- = gnd = 0v, v inh = 3.0v, v inl = 0.8v (note 5), unless otherwise specified (continued) parameter test conditions temp ( o c) min (note 6) typ max (note 6 ) units 50% t r < 20ns t f < 20ns t off 90% 3v 0v v nx 0v t on logic input switch input switch output 90% v out v out v (no or nc) r l r l r on () + ------------------------------ = switch input logic input v out r l c l com no or nc in 300 ? 35pf gnd v+ c v- c v nx c v out ? v out on off on q = ? v out x c l switch output logic input 3v 0v c l v out r g v g gnd no or nc com v+ c logic input in c v- isl43143, isl43144, ISL43145
9 figure 3a. measurement points c l includes fixture and stray capacitance. reconfigure accordingly to test sw3 and sw4. figure 3b. test circuit figure 3. break-before-make time (ISL43145 only) repeat test for all switches. figure 4. off isolation test circuit repeat test for all switches. figure 5. r on test circuit figure 6. crosstalk test circuit figure 7. capacitance test circuit test circuits and waveforms (continued) 90% 3v 0v t d 0v logic input switch output switch output 90% t d 0v v out1 v out2 90% 90% logic input in1 com1 r l1 c l1 v out1 300 ? 35pf com2 r l2 c l2 v out2 300 ? 35pf no1 nc2 gnd in2 v nx v+ c c v- c analyzer r l signal generator v+ c 0v or 2.4v no or nc com in gnd c v- v+ c 0.8v or 2.4v no or nc com in gnd v nx v 1 r on = v 1 /1ma 1ma c v- 0v or 2.4v analyzer v+ c no1 or nc1 signal generator r l gnd in2 com1 in2 50 ? 0v or 2.4v no com2 no2 or nc2 c v- connection v+ gnd no or nc com in impedance analyzer 0v or 2.4v v- isl43143, isl43144, ISL43145
10 detailed description the isl43143?ISL43145 quad anal og switches offer precise switching capability from a bipolar 2v to 6v or a single 2v to 12v supply with low on-resistance (18 ? ) and high speed switching (t on = 52ns, t off = 40ns). the devices are especially well suited for portable battery powered equipment thanks to the low operating supply voltage (2v), low power consumption (1 w), low leakage currents (5na max). high frequency applications also benefit from the wide bandwidth, and the very high off isolation and crosstalk rejection. supply sequencing and overvoltage protection as with any cmos device, proper power supply sequencing is required to protect the device from excessive input currents which might permanently damage the ic. all i/o pins contain esd protection diodes from the pin to v+ and to v- (see figure 8). to prevent forward biasing these diodes, v+ and v- must be applied before any input signals, and input signal voltages must remain between v+ and v-. if these conditions cannot be guaranteed, then one of the following two protection methods should be employed. logic inputs can easily be protected by adding a 1k ? resistor in series with the input (see figure 8). the resistor limits the input current below the threshold that produces permanent damage, and the sub-microamp input current produces an insignificant voltage drop during normal operation. adding a series resistor to the switch input defeats the purpose of using a low r on switch, so two small signal diodes can be added in series with the supply pins to provide overvoltage protection for all pins (see figure 8). these additional diodes limit the analog signal from 1v below v+ to 1v above v-. the low leakage current performance is unaffected by this approach, bu t the switch resistance may increase, especially at low supply voltages. power-supply considerations the isl4314x construction is typical of most cmos analog switches, in that they have three supply pins: v+, v-, and gnd. v+ and v- drive the internal cmos switches and set their analog voltage limits, so there are no connections between the analog signal path and gnd. unlike switches with a 13v maximum supply voltage, the isl4314x 15v maximum supply voltage provides plenty of room for the 10% tolerance of 12v supplies ( 6v or 12v single supply), as well as room for overshoot and noise spikes. this family of switches performs equally well when operated with bipolar or single voltage supplies, and bipolar supplies need not be symmetrical. the minimum recommended supply voltage is 2v or 2v. it is important to note that the input signal range, switchin g times, and on-resistance degrade at lower supply voltages. refer to the electrical specification tables and typical performance curves for details. v+ and gnd power the internal logic (thus setting the digital switching point) and level shifters. the level shifters convert the logic levels to switched v+ and v- signals to drive the analog switch gate terminals, so switch parameters - especially r on - are strong functions of both supplies. logic-level thresholds v+ and gnd power the internal logic stages, so v- has no affect on logic thresholds. this switch family is ttl compatible (0.8v and 2.4v) over a v+ supply range of 2.5v to 10v (see figure 17). at 12v the v ih level is about 2.8v, so for best results use a logic family the provides a v oh greater than 3v. the digital input stages draw supply current whenever the digital input voltage is not at one of the supply rails (see figure 18). driving the digital input signals from gnd to v+ with a fast transition time minimizes power dissipation. the isl43143-ISL43145 switches have been designed to minimize the supply current whenever the digital input voltage is not driven to the supply rails (0v to v+). for example driving the device with 3v logic while operating with dual or single 5v supplies the device draws only 10 a of current (see figure 18 for v in = 3v). similiar devices of competitors can draw 8 times this amount of current. high-frequency performance in 5 0? systems, signal response is reasonably flat even past 200mhz (see figure 19). figure 19 also illustrates that the frequency response is very cons istent over a wide v+ range, and for varying analog signal levels. an off switch acts like a capacitor and passes higher frequencies with less attenuation, resulting in signal feedthrough from a switch?s input to its output. off isolation is the resistance to this feedthrough, while crosstalk indicates the amount of feedthrough from one switch to another. figure 20 details the high off isolation and figure 8. overvoltage protection v- v com v no or nc optional protection v+ in x diode optional protection diode optional protection resistor isl43143, isl43144, ISL43145
11 crosstalk rejection provided by this family. at 10mhz, off isolation is about 50db in 5 0? systems, decreasing approximately 20db per decade as frequency increases. higher load impedances decrease off isolation and crosstalk rejection due to the voltage divider action of the switch off impedance and the load impedance. leakage considerations reverse esd protection diodes are internally connected between each analog-signal pin and both v+ and v-. one of these diodes conducts if any analog signal exceeds v+ or v-. virtually all the analog leakage current comes from the esd diodes to v+ or v-. although the esd diodes on a given signal pin are identical and therefore fairly well balanced, they are reverse biased differently. each is biased by either v+ or v- and the analog signal. this means their leakages will vary as the signal varies. the difference in the two diode leakages to the v+ and v- pins constitutes the analog-signal- path leakage current. all analog leakage current flows between each pin and one of the supply terminals, not to the other switch terminal. this is why both sides of a given switch can show leakage curren ts of the same or opposite polarity. there is no connection between the analog signal paths and gnd. typical performance curves t a = 25 o c, unless otherwise specified figure 9. on resistance vs positive supply voltage figure 10. on resistance vs switch voltage figure 11. on resistance vs switch voltage figure 12. charge inject ion vs switch voltage r on ( ? ) v+ (v) 24681012 35791113 0 50 100 150 200 25 75 125 v- = 0v -40 o c 85 o c 25 o c 10 15 20 25 30 35 v- = -3v -40 o c 85 o c 25 o c 15 20 25 v- = -5v v com = (v+) - 1v i com = 1ma -40 o c 85 o c 25 o c 10 15 20 25 30 35 20 30 40 50 60 70 r on ( ? ) v com (v) 024681012 1357911 v+ = 3v v+ = 5v 25 o c -40 o c 85 o c 25 o c -40 o c 85 o c v- = 0v v- = 0v i com = 1ma 8 10 12 14 16 18 20 -40 o c 85 o c v+ = 12v v- = 0v 25 o c 20 25 30 35 40 45 10 15 20 25 r on ( ? ) v com (v) -4-2024 -5 -3 -1 1 3 5 v s = 5v v s = 3v i com = 1ma v s = 2v 25 o c 85 o c 25 o c -40 o c 85 o c -40 o c 5 10 15 20 25 30 35 25 o c -40 o c 85 o c q (pc) v com (v) -5 0 5 10 -2.5 2.5 7.5 12.5 -10 -5 0 5 10 15 v s = 5v v+ = 5v v+ = 3v v+ = 12v isl43143, isl43144, ISL43145
12 figure 13. turn - on time vs positi ve supply voltage figure 14. turn - of f time vs positive supply voltage figure 15. turn - on time vs positi ve supply voltage figure 16. turn - of f time vs positive supply voltage figure 17. digital switching point vs positive supply voltage figure 18. positive supply current vs digital input voltage typical performance curves t a = 25 o c, unless otherwise specified (continued) t on (ns) v+ (v) 24681012 0 50 100 150 200 250 300 357911 v- = 0v v com = (v+) - 1v -40 o c 85 o c 25 o c t off (ns) v+ (v) 24681012 10 20 30 40 50 357911 v com = (v+) - 1v v- = 0v -40 o c 85 o c 25 o c 0 50 100 150 200 250 t on (ns) v+ (v) v com = (v+) - 1v 24681012 357911 -40 o c 85 o c v- = -3v v- = -5v -40 o c 0 50 100 150 200 250 300 -40 o c 85 o c -40 o c 25 o c 25 o c 25 o c 0 50 100 150 200 250 300 t off (ns) v+ (v) -40 o c 85 o c v com = (v+) - 1v v- = -3v v- = -5v 24681012 357911 0 50 100 150 -40 o c 85 o c -40 o c 25 o c 25 o c 25 o c v+ (v) 25 3.0 2.5 2.0 1.5 1.0 0.5 34 678910111213 v inh and v inl (v) 3.0 2.5 2.0 1.5 1.0 0.5 -40 o c v inl 85 o c -40 o c 85 o c v inh 25 o c 25 o c v- = 0v to -5v v- = 0v to -5v 01.5 0.51 22.533.544.55 70 60 50 40 30 20 10 0 v in (v) i+ cc ( a) v- = -5v to 0v v+ = +5v isl43143, isl43144, ISL43145
13 figure 19. frequency response figure 20. crosstalk and off isolation figure 21. psrr vs frequency die characteristics substrate potential (powered up): v- transistor count: isl43143: 209 isl43144: 209 ISL43145: 209 process: si gate cmos typical performance curves t a = 25 o c, unless otherwise specified (continued) frequency (mhz) 3 0 -3 normalized gain (db) gain phase 0 45 90 135 180 phase (degrees) 1 10 100 600 r l = 50 ? v s = 2v (v in = 4v p-p ) v+ = 5v (v in = 4v p-p ) v s = 5v (v in = 5v p-p ) v s = 5v (v in = 5v p-p ) v+ = 2.7v (v in = 2v p-p ) v s = 2v or v+ = 5v (v in = 4v p-p ) v+ = 2.7v (v in = 2v p-p ) frequency (hz) 1k 100k 1m 100m 500m 10k 10m -110 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 crosstalk (db) off isolation (db) 110 10 20 30 40 50 60 70 80 90 100 isolation crosstalk r l = 50 ? v s = 2v to 5v v+ = 3v to 12v or all hostile crosstalk psrr (db) frequency (mhz) 0 10 20 30 40 50 60 70 0.3 1 10 100 1000 r l = 50 ? v in = 1v p-p v+ = 3v to 12v or v s = 2v to 5v -psrr, switch on +psrr, switch on +psrr, switch off -psrr, switch off isl43143, isl43144, ISL43145
14 isl43143, isl43144, ISL43145 quad flat no-lead plastic package (qfn) micro lead frame pl astic package (mlfp) l16.4x4 16 lead quad flat no-lead plastic package (compliant to jedec mo-220-vggc issue c) symbol millimeters notes min nominal max a 0.80 0.90 1.00 - a1 - - 0.05 - a2 - - 1.00 9 a3 0.20 ref 9 b 0.23 0.28 0.35 5, 8 d 4.00 bsc - d1 3.75 bsc 9 d2 1.95 2.10 2.25 7, 8 e 4.00 bsc - e1 3.75 bsc 9 e2 1.95 2.10 2.25 7, 8 e 0.65 bsc - k0.25 - - - l 0.50 0.60 0.75 8 l1 - - 0.15 10 n162 nd 4 3 ne 4 3 p- -0.609 --129 rev. 5 5/04 notes: 1. dimensioning and tolerancing conform to asme y14.5-1994. 2. n is the number of terminals. 3. nd and ne refer to the number of terminals on each d and e. 4. all dimensions are in millimeters. angles are in degrees. 5. dimension b applies to the meta llized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 6. the configuration of the pin #1 identifier is optional, but must be located within the zone indicated. the pin #1 identifier may be either a mold or mark feature. 7. dimensions d2 and e2 are fo r the exposed pads which provide improved electrical and thermal performance. 8. nominal dimensions are provided to assist with pcb land pattern design efforts, see intersil technical brief tb389. 9. features and dimensions a2, a3, d1, e1, p & are present when anvil singulation method is used and not present for saw singulation. 10. depending on the method of lead termination at the edge of the package, a maximum 0.15mm pull back (l1) maybe present. l minus l1 to be equal to or greater than 0.3mm.
15 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality ce rtifications can be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corporation reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that da ta sheets are current before placing orders. information furnishe d by intersil is believed to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of paten ts or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiari es. for information regarding intersil corporation and its products, see www.intersil.com isl43143, isl43144, ISL43145 thin shrink small outlin e plastic packages (tssop) notes: 1. these package dimensions are wi thin allowable dimensions of jedec mo-153-ab, issue e. 2. dimensioning and tolerancing per ansi y14.5m - 1982. 3. dimension ?d? does not include mold flash, protrusions or gate burrs. mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006 inch) per side. 4. dimension ?e1? does not includ e interlead flash or protrusions. interlead flash and protrusions shall not exceed 0.15mm (0.006 inch) per side. 5. the chamfer on the body is optional. if it is not present, a visual index feature must be located within the crosshatched area. 6. ?l? is the length of terminal for soldering to a substrate. 7. ?n? is the number of terminal positions. 8. terminal numbers are shown for reference only. 9. dimension ?b? does not include dambar protrusion. allowable dambar protrusion shall be 0.08mm (0.003 inch) total in excess of ?b? dimension at maximum ma terial condition. minimum space between protrusion and adjacent lead is 0.07mm (0.0027 inch). 10. controlling dimension: millimeter. converted inch dimen- sions are not necessarily exact. (angles in degrees) index area e1 d n 123 -b- 0.10(0.004) c a m bs e -a- b m -c- a1 a seating plane 0.10(0.004) c e 0.25(0.010) b m m l 0.25 0.010 gauge plane a2 0.05(0.002) m16.173 16 lead thin shrink small outline plastic package symbol inches millimeters notes min max min max a - 0.043 - 1.10 - a1 0.002 0.006 0.05 0.15 - a2 0.033 0.037 0.85 0.95 - b 0.0075 0.012 0.19 0.30 9 c 0.0035 0.008 0.09 0.20 - d 0.193 0.201 4.90 5.10 3 e1 0.169 0.177 4.30 4.50 4 e 0.026 bsc 0.65 bsc - e 0.246 0.256 6.25 6.50 - l 0.020 0.028 0.50 0.70 6 n16 167 0 o 8 o 0 o 8 o - rev. 1 2/02

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