general description the max4594?ax4597 single-pole/single-throw(spst) analog switches operate from a single +2.0v to +5.5v supply. the max4594/max4596 switches are normally open (no), and the max4595/max4597 are normally closed (nc). the max4596/max4597 pinouts are optimized for the highest sc70 package off-isola- tion available. these switches have 10 ? max on-resistance (r on ), with 1.5 ? max r on flatness over the analog signal range when powered from a +5v supply. themax4594?ax4597 offer low 0.5na leakage currents and fast switching times less than 40ns. they are pack- aged in an ultra-small 5-pin sc70 and 6-pin ?fn. ________________________applications cellular phonesbattery-operated equipment audio and video signal routing communications circuits pcmcia cards dsl modems ____________________________features ? available in 5-pin sc70 and 6-pin dfn packages ? 10 ? max on-resistance ? 1.5 ? max on-resistance flatness ? fast switching t on = 35ns max t off = 40ns max ? guaranteed 5pc max charge injection ? +2.0v to +5.5v single-supply operation ? 300mhz -3db bandwidth at +25? ? ttl/cmos-logic compatible ? -80db off-isolation at 1mhz ? 0.5na max off-leakage ? 0.05% thd 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. max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches ________________________________________________________________ maxim integrated products 1 input low high switch state max4594/max4596 off on max4595/max4597 on off top view switches shown for logic o input. nc in gnd 1 5 v+ com max4595 23 4 com no gnd 1 5 v+ in max4596 23 4 no in gnd 1 5 v+ com max4594 23 4 com nc gnd 1 5 v+ in max4597 23 4 sc70 sc70 sc70 sc70 pin configurations/functional diagrams/truth table 19-1663; rev 2; 2/04 ordering information pin configurations/functional diagrams/truth table continued at end of data sheet. part temp range pin- package top mark max4594 exk-t -40 c to +85 c5 sc70-5 aah max4594elt-t -40 c to +85 c 6 ?fn-6 ab max4595 exk-t -40 c to +85 c5 sc70-5 aai max4595elt-t -40 c to +85 c 6 ?fn-6 ac max4596 exk-t -40 c to +85 c5 sc70-5 aaj max4596elt-t -40 c to +85 c 6 ?fn-6 ad max4597 exk-t -40 c to +85 c5 sc70-5 aak max4597elt-t -40 c to +85 c 6 ?fn-6 ae downloaded from: http:///
max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics +5v supply ( v+ = +4.5v to +5.5v, v i h = +2.4v, v il = +0.8v, t a = t min to t max , unless otherwise noted. typical values are at v+ = +5v, t a = +25 c.) (notes 2, 3) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note 1: voltages exceeding v+ or gnd on any signal terminal are clamped by internal diodes. limit forward-diode current to maxi-mum current rating. (voltages referenced to gnd) v+ .............................................................................-0.3v to +6v voltage into any terminal (note 1)...............-0.3v to (v+ + 0.3v) continuous current into any terminal..............................?0ma peak current, no, nc, or com (pulsed at 1ms, 10% duty cycle).................................?0ma continuous power dissipation (t a = +70?) 5-pin sc70 (derate 3.1mw/? above +70?).............247mw 6-pin ?fn (derate 2.1mw/? above +70?) ............168mw operating temperature range max459_exk .................................................-40? to +85? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? 300 conditions v 0v + v com , v no , v nc analog signal range units min typ max symbol parameter v+ = 4.5v, v no, or v nc = 3.5v; i com = 10ma ? 12 r on 6.5 10 on-resistance v+ = 5.5v; v com = 1v, 4.5v; v no or v nc = 4.5v, 1v na i no(off) i nc(off) no or nc off-leakagecurrent -5 5 -0.5 0.01 0.5 v in = v+, 0 ? -1 0.03 1 i ih , i il input logic current v 0.8 v il input logic low t a = +25? t a = t min to t max v no or v nc = 1.5v, 2.5v, 3.5v; v+ = 4.5v; i com = 10ma ? 2 r flat(on) 0.5 1.5 on-resistance flatness(note 4) t a = t min to t max t a = +25? t a = +25? v+ = 5.5v; v com = 1v, 4.5v; v no or v nc = 4.5v, 1v na com off-leakage current -5 5 t a = +25? -0.5 0.01 0.5 i com(off) v+ = 5.5v; v com = 1v; 4.5v; v no or v nc = 1v, 4.5v, or floating na com on-leakage current -10 10 t a = +25? -1 0.01 1 i com(on) t on v no or v nc = 3v, r l = 300 ? , c l = 35pf, figure 3 20 35 ns 45 t off v no or v nc = 3v, r l = 300 ? , c l = 35pf, figure 3 25 40 ns 50 t a = +25? t a = t min to t max turn-on time turn-off time t a = +25? t a = t min to t max t a = t min to t max t a = t min to t max t a = t min to t max t a = +25? on-channel -3dbbandwidth bw signal = 0dbm, 50 ? in and out, figure 4 mhz analog switch v 2.4 v ih input logic high digital i/o dynamic downloaded from: http:///
max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches _______________________________________________________________________________________ 3 electrical characteristics +5v supply (continued) ( v+ = +4.5v to +5.5v, v i h = +2.4v, v il = +0.8v, t a = t min to t max , unless otherwise noted. typical values are at v+ = +5v, t a = +25 c.) (notes 2, 3) electrical characteristics +3v supply (v+ = +2.7v to +3.6v, v ih = +2.0v, v il = +0.8v, t a = t min to t max , unless otherwise noted. typical values are at v+ = +3.0v, t a = +25 c.) (notes 2, 3) parameter symbol min typ max units t a = +25? t a = t min to t max v no or v nc = 0, c l = 1nf, figure 2 charge injection (note 5) q 24 pc t a = +25? t a = t min to t max 30 50 turn-off time t off 60 analog signal range t a = +25? t a = t min to t max v com , v no , v nc 0v + input logic low ns input logic current i ih , i il -1 0.03 1 25 45 v turn-on time v il t on 55 ns v no or v nc = 2v, r l = 300 ? , c l = 35pf, figure 3 0.8 v ? conditions v in = v+, 0 input logic high v ih 2.0 v no or v nc = 2v, r l = 300 ? , c l = 35pf, figure 3 on-resistance v 10 20 r on 25 ? v no or v nc = 1.5v, i com = 10ma, v+ = 2.7v t a = +25? com on-capacitance c com(on) 20 pf v com = 0, f = 1mhz, figure 5 t a = +25? total harmonic distortionplus noise thd 0.05 % v= 5vp-p, r l = 600 ? , f = 20hz to 20khz 83 max4596/max4597 max4594/max4595 t a = t min to t max -1 1 v+ supply current i+ ? v+ = 5.5v, v in = 0 or v+ power-supply range v+ 2.0 5.5 v v no or v nc = 1v rms , r l = 50 ? , c l = 5pf, f = 1mhz, figure 4 v no or v nc = 0, c l = 1nf, figure 2 parameter symbol min typ max units no or nc off-capacitance off-isolation(note 6) v iso 80 db c no(off) , c nc(off) 8 pf com off-capacitance c com(off) 8 v no or v nc = 0, f = 1mhz, figure 5 pf v com = 0, f = 1mhz, figure 5 conditions charge injection(note 5) q 25 pc t a = +25? t a = +25? t a = +25? t a = +25? t a = +25? power supply analog switch digital i/o dynamic downloaded from: http:///
0 64 2 8 10 12 14 16 18 20 02 13 4 5 on-resistance vs. com voltage max4594?7 toc 01 com voltage (v) r on ( ? ) v+ = 3v v+ = 2v v+ = 5v 0 21 43 65 7 02 3 14 5 on-resistance vs. com voltage (v+ = 5v) max4594?7 toc 02 com voltage (v) r on ( ? ) t a = +85? t a = +25? t a = 0? t a = -40? 0 32 1 54 98 7 6 10 0 0.5 1.0 1.5 2.0 2.5 3.0 on-resistance vs. com voltage (v+ = 3v) max4594?7 toc 03 com voltage (v) r on ( ? ) t a = +85? t a = +25? t a = 0? t a = -40? 1 0.001 -40 -25 5 35 50 65 80 on/off-leakage current vs. temperature 0.01 0.1 max4594-97 toc04 temperature ( c) on/off-leakage current (na) -10 20 v+ = +5v i com(on) no, nc (off) -3 -1-2 10 32 4 0 2.0 1.0 3.0 4.0 5.0 charge injection vs. com voltage max4594?7 toc 05 com voltage (v) charge injection (pc) v+ = 5v v+ = 3v 0.0001 0.001 0.1 0.01 1 10 -40 10 -15 35 60 85 supply current vs. temperature max4594?7 toc 06 temperature (?) supply current (na) v+ = +5v v+ = +3v t ypical operating characteristics (v+ = +5v, t a = +25?, unless otherwise noted.) max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches 4 _______________________________________________________________________________________ note 2: parameters are 100% tested at +25? only, and guaranteed by correlation at the full-rated temperature. note 3: algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. note 4: flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the specified analog signal ranges. note 5: guaranteed by design. note 6: off-isolation = 20log 10 (v com / v no ), v com = output, v no = input to off switch. electrical characteristics +3v supply (continued) (v+ = +2.7v to +3.6v, v ih = +2.0v, v il = +0.8v, t a = t min to t max , unless otherwise noted. typical values are at v+ = +3.0v, t a = +25?.) (notes 2, 3) v+ = 3.6v, v in = 0 or v+ ? i+ -1 1 t a = t min to t max v+ supply current conditions units min typ max symbol parameter power supply downloaded from: http:///
max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches _______________________________________________________________________________________ 5 0 0.60.4 0.2 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.0 3.0 2.5 3.5 4.0 4.5 5.0 logic threshold vs. supply voltage max4594?7 toc 07 supply voltage (v) logic threshold (v) v ih v il 5 1510 2520 3530 40 2.0 3.0 3.5 2.5 4.0 4.5 5.0 turn-on/turn-off time vs. supply voltage max4594-97 toc 08 supply voltage (v) t on /t off (ns) t on t off 10 1614 12 18 20 22 24 26 28 30 -40 10 -15 35 60 85 turn-on/turn-off time vs. temperature max4594?7 toc 09 temperature ( c) t on /t off (ns) t on t off frequency response max4594?7 toc 10 0 -110 0.01 0.1 1 10 100 1000 frequency (mhz) loss (db) -70 -50 -30 -10 -90 off-isolation on-loss 0.01 1 0.1 10 100 total harmonic distortion plus noise vs. frequency max4594?7 toc 11 frequency (khz) thd + n (%) 0.1 0.0001 0.01 0.001 t ypical operating characteristics (continued) (v+ = +5v, t a = +25?, unless otherwise noted.) pin description note: no, nc, and com pins are identical and interchangeable. any pin may be considered as an input or an output; signals pass equally well in both directions. pin max4594 max4595 max4596 max4597 sc70 ?fn sc70 ?fn sc70 ?fn sc70 ?fn name function 11112222c o m analog switch, common 22 44 no analog switch, normally open 33333333g n d ground 44441111 i n digital control input 56565656 v + positive supply voltage 22 44 nc analog switch, normally closed ???? n.c. no connection. not internally connected. ep ep ep ep ep ep ep ep pad exposed pad. connect to gnd (?fn only.) downloaded from: http:///
applications information analog signal levels analog signals can range over the supply voltage (v+ tognd) with on-resistance changing very little over the entire range (see typical operating characteristics ). the max4594?ax4597 are bidirectional, so the no, nc,and com pins can be used either as inputs or outputs. power-supply sequencing and overvoltage protection proper power-supply sequencing is recommended forall cmos devices. always apply v+ before applying analog signals or logic inputs, especially if the analog or logic signals are not current limited. if this sequenc- ing is not possible, and if the analog or logic inputs are not current limited to <20ma, add a small-signal diode (d1) as shown in figure 1. if the analog signal can dip below gnd, add d2. adding protection diodes reduces the analog signal range to a diode drop (about 0.7v) below v+ for d1 or to a diode drop above ground for d2. the addition of diodes does not affect leakage. on-resistance increases by a small amount at low sup- ply voltages. maximum supply voltage (v+) must not exceed 6v. protection diodes d1 and d2 also protect against some overvoltage situations. a fault voltage up to the absolute maximum rating at an analog signal input does not dam- age the device, even if the supply voltage is below the signal voltage. max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches 6 _______________________________________________________________________________________ ? v out v+0v v in v out max4595/max4597 max4594/max4596 ? 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 v no or v nc = 0 50 ? max4594max4595 max4596 max4597 c l 1000pf v in figure 2. charge injection t est circuits/timing diagrams positive supply com no or nc d2 d1 gnd v g v+ figure 1. overvoltage protection using two external blocking diodes downloaded from: http:///
max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches _______________________________________________________________________________________ 7 50% t off t on v out v in v+0v v+ v out gnd v+ in no com v no 50 ? max4594max4596 r l 300 ? r l 300 ? c l 35pfc l 35pf 90% 90% 0v v in 50% t on t off v out v in v+0v v+ v out gnd v+ in nc com v nc 50 ? max4595max4597 90% 90% 0v v in t r 5ns t f 5ns figure 3. switching times t est circuits/timing diagrams (continued) v+ v+ v out gnd v+ in no or nc com v in max4594max4595 max4596 max4597 off-isolation = 20log v out v in on-loss = 20log v out v in network analyzer 50 ? 50 ? 50 ? 50 ? meas ref 10nf figure 4. off-isolation and on-channel bandwidth capacitance meter nc or no com gnd in 0 or2.4v 10nf v+ f = 1mhz v+ max4594max4595 max4596 max4597 figure 5. channel on-/off-capacitance downloaded from: http:///
max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches 8 _______________________________________________________________________________________ 5 n.c. 5 n.c. 5 n.c. 5 n.c. top view nc in gnd 1 6 v+ com max4595 23 4 com no gnd 1 6 v+ in max4596 23 4 no in gnd 1 6 v+ com max4594 23 4 com nc gnd 1 6 v+ in max4597 23 4 dfn dfn dfn dfn pin configurations/functional diagrams/truth table (continued) chip information transistor count: 50 downloaded from: http:///
max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches _______________________________________________________________________________________ 9 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 .) 6l udfn.eps l top view d e side view a1 pin 1 index area a a 0.64 common dimensions pin 10.075x45 bottom view l1 32 min. 1 e 6 5 b 4 section a-a b l2 a a nom. 0.72 0.80 max. 0.20 -- a1 -- 1.50 1.45 d 1.55 1.00 0.95 e 1.05 0.35 0.30 l 0.40 -- -- l1 0.08 -- -- l2 0.05 0.20 0.17 b 0.23 0.50 bsc. e aaa topmark 2 1 -drawing not to scale- document control no. approval title: rev. package outline, 6l udfn, 1.5x1.0x0.8mm 21-0147 1 1 c 3 downloaded from: http:///
maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circuit patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 10 __________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 (408) 737-7600 2004 maxim integrated products printed usa is a registered trademark of maxim integrated products. max4594?ax4597 low-voltage, single-supply, 10 ? spst cmos analog switches 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 .) sc70, 5l.eps package outline, 5l sc70 21-0076 1 1 c downloaded from: http:///
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