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general description the max4741/max4742/max4743 are low on-resistance, low-voltage, dual single-pole/single-throw (spst) analog switches that operate from a single +1.6v to +3.6v sup- ply. these devices have fast switching speeds (t on = 24ns, t off = 16ns max), handle rail-to-rail analog signals, and consume less than 1w of quiescent power. the max4743 has break-before-make switching. when powered from a +3v supply, the max4741/ max4742/max4743 feature low 0.8 ? (max) on-resis- tance (r on ), with 0.08 ? (max) r on matching and 0.18 ? r on flatness. the digital logic input is 1.8v cmos compatible when using a single +3v supply. the max4741 has two normally open (no) switches, the max4742 has two normally closed (nc) switches, and the max4743 has one no switch and one nc switch. the max4741 is available in 8-pin ?fn (2mm x 2mm), 8-pin sot23, and 8-pin ?ax packages. the max4742/max4743 are available in 8-pin sot23 and 8-pin ?ax packages. applications power routing battery powered systems audio and video signal routing low-voltage data-acquisition systems communications circuits pcmcia cards cellular phones modems hard drives features ? low r on : 0.8 ? max (+3v supply) 2.5 ? max (+1.8v supply) ? 0.18 ? max r on flatness (+3v supply) ? +1.6v to +3.6v single-supply operation ? available in sot23 and ?ax packages ? high-current handling capacity (150ma continuous) ? 1.8v cmos logic compatible (+3v supply) ? fast switching: t on = 24ns, t off = 16ns max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches ________________________________________________________________ maxim integrated products 1 4 gnd 5 no2 3 in2 6 com2 1 2 com1 no1 8 7 v+ in1 top view max max4741 4 gnd 5 nc2 3 in2 6 com2 1 2 com1 no1 8 7 v+ in1 max max4743 4 gnd 5 nc2 3 in2 6 com2 1 2 com1 nc1 8 7 v+ in1 max max4742 pin configurations ordering information 19-2116; rev 2; 12/06 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. part pin- package top mark package code max4741 eka 8 sot23-8 aaiy k8s-3 max4741eua 8 ?ax u8-1 max4741ela 8 ?fn +aav l822-1 max4742 eka 8 sot23-8 aaiz k8s-3 max4742eua 8 ?ax u8-1 max4743 eka 8 sot23-8 aaja k8s-3 max4743eua 8 ?ax u8-1 sot23-8 pin configurations continued at end of data sheet. ?ax is a registered trademark of maxim integrated products, inc. note: all devices are specified over the -40? to +85? oper- ating temperature range.
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics?ingle +3v supply (v+ = +2.7v to +3.6v, v ih = +1.4v, v il = +0.5v, t a = t min to t max , unless otherwise specified. typical values are at v+ = +3.0v, t a = +25?.) (notes 2, 3) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note 1: signals on com_, no_, or nc_ exceeding v+ or gnd are clamped by internal diodes. limit forward current to maximum current rating. voltages referenced to gnd v+, in_......................................................................-0.3v to +4v com_, no_, nc_ (note 1) ...........................-0.3v to (v+ + 0.3v) continuous current com_ , no_, nc_ .........................?50ma peak current com_, no_, nc_ (pulsed at 1ms 10% duty cycle)..................................?00ma continuous power dissipation (t a = +70?) 8-pin sot23 (derate 7.52mw/? above +70?)...........602mw 8-pin ?ax (derate 4.5mw/? above +70?) ..............362mw 8-pin ?fn (derate 4.8mw/? above +70?) ..............381mw operating temperature range ...........................-40? to +85? maximum junction temperature .....................................+150? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? parameter symbol conditions t a min typ max units analog switch analog signal range v com _, v no _, v nc _ 0 v+ v +25? 0.5 0.8 on-resistance r on v+ = 2.7v, i com _ = 100ma, v no _ or v nc _ = 1.5v t min to t max 0.9 ? +25? 0.05 0.08 on-resistance match between channels (note 4) ? r on v+ = 2.7v, i com _ = 100ma, v no _ or v nc _ = 1.5v t min to t max 0.09 ? +25? 0.05 0.18 on-resistance flatness (note 5) r flat ( on ) v+ = 2.7v, i com _ = 100ma, v no _ or v nc _ = 1v, 1.5v, 2v t min to t max 0.20 ? +25? -1 1 no_ or nc_ off-leakage current i no_(off) , i nc_ ( off ) v+ = 3.3v, v com _ = 0.3v, 3v, v no _ or v nc _ = 3v, 0.3v t min to t max -5 5 na +25? -1 1 com_ off-leakage current i com_ ( off ) v+ = 3.3v, v com _ = 0.3v, 3v v no _ or v nc _ = 3v, 0.3v or floating t min to t max -5 5 na +25? -2 2 com_ on-leakage current i com_ ( on ) v+ = 3.3v, v com _ = 3v, 0.3v; v no _ or v nc _ = 3v, 0.3v or floating t min to t max -10 10 na
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches _______________________________________________________________________________________ 3 electrical characteristics?ingle +3v supply (continued) (v+ = +2.7v to +3.6v, v ih = +1.4v, v il = +0.5v, t a = t min to t max , unless otherwise specified. typical values are at v+ = +3.0v, t a = +25?.) (notes 2, 3) parameter symbol conditions t a min typ max units switch dynamic characteristics +25? 18 24 turn-on time t on v no _, v nc _ = 1.5v, r l = 50 ? , c l = 35pf, figure 1 t min to t max 28 ns +25? 12 16 turn-off time t off v no _, v nc _ = 1.5v, r l = 50 ? , c l = 35pf, figure 1 t min to t max 18 ns +25? 6 break-before-make (note 6) t bbm v no _, v nc _ = 1.5v, r l = 50 ? , c l = 35pf, figure 1 (max4743) t min to t max 1 ns charge injection q v gen = 0, r gen = 0, c l = 1.0nf, figure 3 +25? 28 pc no_ or nc_ off- capacitance c off f = 1mhz, figure 4 +25? 32 pf com_ off-capacitance c com_ ( off ) f = 1mhz, figure 4 +25? 32 pf com_ on-capacitance c com_ ( on ) f = 1mhz, figure 4 +25? 44 pf -3db on-channel bandwidth bw signal = 0, r in = r out = 50 ? , c l = 5pf, figure 2 100 mhz off-isolation (note 7) v iso f = 1m h z, v c om _ = 1v rm s , r l = 50 ? , c l = 5p f, fi g ur e 2 +25? -55 db crosstalk (note 8) f = 1m h z, v c om _ = 1v rm s , r l = 50 ? , c l = 5p f, fi g ur e 2 +25? -110 db total harmonic distortion thd f = 20hz to 20khz, v com _ = 2vp-p, r l = 32 ? +25? 0.02 % logic input input logic high v ih 1.4 v input logic low v il 0.5 v input leakage current i in v in _ = 0 or v+ -1 0.005 1a power supply power-supply range v+ 1.6 3.6 v positive supply current i+ v+ = 3.6v, v in _ = 0 or v+, all channels on or off +25? 0.2 ?
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches 4 _______________________________________________________________________________________ electrical characteristics?ingle +1.8v supply (v+ = +1.8v, v ih = +1.0v, v il = 0.4v, t a = t min to t max , unless otherwise specified. typical values are at t a = +25?.) (notes 2, 3) parameter symbol conditions t a min typ max units analog switch analog signal range v com _, v no _, v nc _ 0v+v +25? 1.3 2.5 on-resistance r on i com _ = 10ma, v no _ or v nc _ = 0.9v t min to t max 5 ? +25? -1 1 no_ or nc_ off-leakage current i no_(off) , i nc_ ( off ) v com _ = 0.3v, 1.5v; v no _ or v nc _ = 1.5v, 0.3v t min to t max -5 5 na +25? -1 1 com_ off-leakage current i com_ ( off ) v com _ = 0.3v, 1.5v; v no _ or v nc _ = 1.5v, 0.3v t min to t max -5 5 na +25? -2 2 com_ on-leakage current i com_ ( on ) v com _ = 0.3v, 1.5v, v no _ or v nc _ = 0.3v, 1.5v, or floating t min to t max -10 10 na switch dynamic characteristics +25? 25 35 turn-on time t on v no _, v nc _ = 1.5v, r l = 50 ?, c l = 35pf, figure 1 t min to t max 40 ns +25? 16 25 turn-off time t off v no _, v nc _ = 1.5v, r l = 50 ?, c l = 35pf, figure 1 t min to t max 30 ns +25? 10 break-before-make (note 6) t bbm v no _, v nc _ = 1.5v, r l = 50 ?, c l = 35pf, figure 1 (max4743) t min to t max 1 ns charge injection q v gen = 0, r gen = 0, c l = 1nf, figure 2 +25? 16 pc off-isolation (note 7) v iso f = 1m h z, v n o _ = v n c _ = 1v rm s , r l = 50 ? , c l = 5p f, fi g ur e 2 +25? -50 db crosstalk (note 8) f = 1m h z, v c om _ = 1v rm s , r l = 50 ? , c l = 5p f, fi g ur e 2 +25? -110 db
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches _______________________________________________________________________________________ 5 electrical characteristics?ingle +1.8v supply (continued) (v+ = +1.8v, v ih = +1.0v, v il = 0.4v, t a = t min to t max , unless otherwise specified. typical values are at t a = +25?.) (notes 2, 3) parameter symbol conditions t a min typ max units logic input input logic high v ih 1v input logic low v il 0.4 v input leakage current i in v in _ = 0 or v+ -1 1 a note 2: the algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used in this data sheet. note 3: ?fn and sot23 packaged parts are 100% tested at +25?. limits across the full temperature range are guaranteed by design and correlation. ?ax packaged parts -40? specifications are guaranteed by design. note 4: ? r on = r on(max) - r on(min) . note 5: flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the specified analog signal ranges. note 6: guaranteed by design. note 7: off-isolation = 20log 10 (v com _/v no _), v com _ = output, v no _ = input to off switch. note 8: between two switches. t ypical operating characteristics (t a = +25?, unless otherwise noted.) 0 0.4 0.2 0.8 0.6 1.2 1.4 1.0 0 0.8 1.2 0.4 1.6 2.0 2.4 2.8 3.2 3.6 on-resistance vs. v com max4741 toc01 v com (v) r on ( ? ) v+ = +1.8v v+ = +2.5v v+ = +2.7v v+ = +3.0v v+ = +3.3v v+ = +2.0v v+ = +3.6v i com = 100ma 0 0.2 0.1 0.4 0.3 0.6 0.5 0.7 0 0.6 0.9 0.3 1.2 1.5 1.8 2.1 2.4 2.7 on-resistance vs. v com and temperature max4741 toc02 v com (v) r on ( ? ) t a = +85 c t a = +25 c t a = -40 c v+ = +2.7v i com = 100ma 8 16 12 24 20 28 32 40 36 44 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 turn-on/off time vs. supply voltage max4741 toc03 v+ (v) t on /t off (ns) t on t off
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches 6 _______________________________________________________________________________________ t ypical operating characteristics (continued) (t a = +25?, unless otherwise noted.) 8 12 10 18 16 14 24 22 20 26 -40 10 -15 35 60 85 turn-on/off time vs. temperature max4741 toc04 temperature ( c) t on /t off (ns) t on , v+ = +1.8v t on , v+ = +3v t off , v+ = +1.8v t off , v+ = +3v 10,000 1 -40 -15 35 60 leakage current vs. temperature 10 100 1000 max4741 toc05 temperature ( c) i com (pa) 10 85 off on v+ = +3v 0 10 5 25 20 15 30 35 40 45 0.3 0.9 1.2 0.6 1.5 1.8 2.1 2.4 2.7 3.0 3.3 charge injection vs. output voltage max4741 toc06 v com (v) q (pc) v+ = +1.8v v+ = +3.3v 0 -120 0.01 0.1 1 10 100 1000 frequency response -105 -90 max4741 toc07 frequency (mhz) loss (db) -60 -75 -15 0 -30 -45 on-response off-isolation crosstalk 0.5 0.8 0.7 0.6 0.9 1.0 1.1 1.6 2.4 2.2 1.8 2.0 2.6 2.8 3.0 3.2 3.4 3.6 logic threshold voltage vs. supply voltage max4741 toc08 v+ (v) threshold (v) rising falling 0.025 0.020 0.015 0.010 0.005 0 1 10k 100k total harmonic distortion vs. frequency max4741 toc09 frequency (hz) thd (%) 10 100 1k r l = 32 ? v+ = +3v 100.00 0.01 0 0.8 0.4 1.6 2.4 3.2 2.8 supply current vs. supply voltage and temperature 0.10 1.00 10.00 max4741 toc10 v+ (v) i+ (na) 1.2 2.0 3.6 t a = +85 c t a = +25 c t a = -40 c
detailed description the max4741/max4742/max4743 are low 0.8 ? max (at v+ = +3v) on-resistance, low-voltage, dual analog switches that operate from a +1.6v to +3.6v single sup- ply. cmos switch construction allows switching analog signals that are within the supply voltage range (gnd to v+). when powered from a +3v supply, the 0.8 ? max r on allows high continuous currents to be switched in a variety of applications. applications information proper power-supply sequencing is recommended for all cmos devices. do not exceed the absolute maxi- mum ratings, because stresses beyond the listed rat- ings can cause permanent damage to the devices. always sequence v+ on first, followed by no_, nc_, or com_. although it is not required, power-supply bypassing improves noise margin and prevents switching noise propagation from the v+ supply to other components. a 0.1? capacitor, connected from v+ to gnd, is ade- quate for most applications. logic inputs the max4741/max4742/max4743 logic inputs can be driven up to +3.6v regardless of the supply voltage. for example, with a +1.8v supply, in_ may be driven low to gnd and high to +3.6v. driving in_ rail-to-rail minimizes power consumption. analog signal levels analog signals that range over the entire supply voltage (v+ to gnd) can be passed with very little change in on- resistance (see typical operating characteristics ). the switches are bidirectional, so the no_, nc_, and com_ pins can be used as either inputs or outputs. layout high-speed switches require proper layout and design procedures for optimum performance. reduce stray inductance and capacitance by keeping traces short and wide. ensure that bypass capacitors are as close to the device as possible. use large ground planes where possible. max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches _______________________________________________________________________________________ 7 pin description pin max4741 max4742 max4743 ?ax/?fn sot23-8 ?ax sot23-8 ?ax sot23-8 name function 18 18 no1 analog switch 1 normally open 18 nc1 analog switch 1 normally closed 27 272 7 com1 analog switch 1 common 36 363 6 in2 logic control input switch 2 45 454 5 gnd ground 53 no2 analog switch 2 normally open 535 3 nc2 analog switch 2 normally closed 64 646 4 com2 analog switch 2 common 71 717 1 in1 logic control input switch 1 82 82 82v + positive supply voltage
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches 8 _______________________________________________________________________________________ v+ v com_ gnd v+ in_ no_ com_ v no_ 50 ? 50 ? max4741 35pf no_ open v+ v com_ gnd v+ in_ nc_ com_ v nc_ max4742 35pf nc_ open v+ v com_ gnd v+ in_ no_ com_ v s 50 ? 50 ? max4743 35pf nc_ v s v ih + 0.5v 0 0 in_ 50% 50% 90% 90% v no_ v com_ t off t on v ih + 0.5v 0 in_ v com_ 50% 50% 90% 90% t off t on v nc_ 0 v ih + 0.5v 0 v s 0 in_ v com_ 90% 90% t bbm t bbm t bbm = t on(no_) - t off(nc_) or t bbm = t on(nc_) - t off(no_) 50 ? 50 ? t r < 5ns t f < 5ns figure 1. switching times t est circuits/timing diagrams
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches _______________________________________________________________________________________ 9 measurements are standardized against short at socket terminals. off-isolation is measured between com and ?ff?terminal on each switch. on-loss is measured between com and ?n?terminal on each switch. signal direction through switch is reversed; worst values are recorded. v+ v+ v out gnd v+ in_ no_ or nc_ com_ v in max4741 max4742 max4743 off-isolation = 20log v out v in on-loss = 20log v out v in network analyzer 50 ? 50 ? 50 ? 50 ? meas ref 0.1 f * * add 50 ? termination for off-isolation figure 2. off-isolation, on-loss, and crosstalk ? v out v+ 0 v in v out max4742 max4741 ? v out is the measured voltage due to charge transfer error q when the channel turns off. q = ? v out x c l v+ v out gnd v+ in_ no_ or nc_ com_ 50 ? max4741 max4742 max4743 c l 1000pf v in r gen v gen v+ gnd v+ in_ no_ or nc_ com_ max4741 max4742 max4743 1mhz capacitance analyzer as required figure 3. charge injection figure 4. no_, nc_, and com_ capacitance t est circuits/timing diagrams (continued)
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches 10 ______________________________________________________________________________________ 4 com2 5 gnd 3 no2 6 in2 1 2 v+ in1 8 7 no1 com1 sot23-8 max4741 4 com2 5 gnd 3 nc2 6 in2 1 2 v+ in1 8 7 nc1 com1 sot23-8 max4742 max4743 4 com2 5 gnd 3 nc2 6 in2 1 2 v+ in1 8 7 no1 com1 sot23-8 top view 4 gnd 5 no2 3 in2 6 com2 1 2 com1 no1 8 7 v+ in1 dfn (2mm x 2mm) max4741 pin configurations (continued) chip information transistor count = 121 process = cmos
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches ______________________________________________________________________________________ 11 sot23, 8l .eps 8lumaxd.eps package outline, 8l umax/usop 1 1 21-0036 j rev. document control no. approval proprietary information title: max 0.043 0.006 0.014 0.120 0.120 0.198 0.026 0.007 0.037 0.0207 bsc 0.0256 bsc a2 a1 c e b a l front view side view e h 0.60.1 0.60.1 ?0.500.1 1 top view d 8 a2 0.030 bottom view 1 6 s b l h e d e c 0 0.010 0.116 0.116 0.188 0.016 0.005 8 4x s inches - a1 a min 0.002 0.95 0.75 0.5250 bsc 0.25 0.36 2.95 3.05 2.95 3.05 4.78 0.41 0.65 bsc 5.03 0.66 6 0 0.13 0.18 max min millimeters - 1.10 0.05 0.15 dim package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max4741/max4742/max4743 0.8 ? , low-voltage, single-supply dual spst analog switches maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2006 maxim integrated products is a registered trademark of maxim integrated products, inc. 6, 8, 10l udfn.eps even terminal l c odd terminal l c l e l a e e d pin 1 index area b e a b n solder mask coverage a a 1 pin 1 0.10x45 l l1 (n/2 -1) x e) xxxx xxxx xxxx sample marking a1 a2 7 a 1 2 21-0164 package outline, 6, 8, 10l udfn, 2x2x0.80 mm -drawing not to scale- common dimensions symbol min. nom. a 0.70 0.75 a1 d 1.95 2.00 e 1.95 2.00 l 0.30 0.40 pkg. code n e b package variations l1 6 l622-1 0.65 bsc 0.300.05 0.250.05 0.50 bsc 8 l822-1 0.200.03 0.40 bsc 10 l1022-1 2.05 0.80 max. 0.50 2.05 0.10 ref. (n/2 -1) x e 1.60 ref. 1.50 ref. 1.30 ref. a2 - -drawing not to scale- a 2 2 21-0164 package outline, 6, 8, 10l udfn, 2x2x0.80 mm 0.15 0.20 0.25 0.020 0.025 0.035 package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .) revision history pages changed at rev 2: 1, 12

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