general description the max4729/max4730 single-pole/double-throw (spdt) switches operate from a single supply ranging from +1.8v to +5.5v. these switches provide low 3.5 ? on-resistance (r on ), as well as 0.45 ? r on flatness with a +2.7v supply. these devices typically consume only 1na of supply current, making them ideal for use in low- power, portable applications. the max4729/max4730 feature low-leakage currents over the extended temper- ature range, ttl/cmos-compatible digital logic, and excellent ac characteristics. the max4729/max4730 are available in small 6-pin sc70 and 6-pin ?fn packages. the max4729/ max4730 are offered in three pinout configurations to ease design. the max4729/max4730 are specified over the extended -40? to +85? temperature range. applications battery-operated equipment audio and video-signal routing low-voltage data-acquisition systems sample-and-hold circuits communications circuits relay replacement features ? low 3.5 ? r on (+2.7v supply) ? 0.45 ? r on flatness (+2.7v supply) ? 0.05 ? r on match between channels (+2.7v supply) ? tiny sc70 and dfn packages ? -3db bandwidth: 300mhz ? low on-capacitance: 19.5pf ? 0.036% total harmonic distortion ? low supply current: 1na ? +1.8v to +5.5v single-supply operation max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches ________________________________________________________________ maxim integrated products 1 5 com top view v+ nc switches shown for logic 0 input. gnd 1 6 no in sc70 2 3 4 v+ gnd in 16 nc no dfn 2 3 4 gnd nc 1 6 in 5 v+ no sc70 dfn 2 3 4 max4729 max4729 max4730 com no off on nc on off 0 1 max4729/ max4730 in 5 com pin configurations/functional diagrams/truth table ordering information 19-3284; rev 1; 2/05 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 temp range pin- package top mark max4729 ext-t -40 c to +85 c 6 sc70-6 abu max4729elt-t* -40 c to +85 c 6 ?fn-6 max4730 ext-t -40 c to +85 c 6 sc70-6 abv max4730elt-t* -40 c to +85 c 6 ?fn-6 * future product?ontact factory for availability.
max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches 2 _______________________________________________________________________________________ absolute maximum ratings 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. (all voltages referenced to ground) v+, in .......................................................................-0.3v to +6v com, no, nc (note 1)..................................-0.3v to (v+ +0.3v) continuous current (in, v+, gnd) ...................................?0ma continuous current (com, no, nc) ................................?0ma peak current com, no, nc (pulsed at 1ms, 10% duty cycle)................................?50ma continuous power dissipation (t a = +70?) 6-pin ?fn (derate 2.1mw/? above +70?) ..............168mw 6-pin sc70 (derate 3.1mw/? above +70?) ...............245mw operating temperature range ...........................-40? to +85? maximum junction temperature .....................................+150? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? electrical characteristics (v+ = +2.7v to +3.6v, v ih = +2.0v, v il = +0.4v, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 2) parameter symbol conditions t a min typ max units analog switch analog signal range v com , v no , v nc 0v+v +25? 3.5 5.5 on-resistance (note 6) r on v+ = 2.7v, i com = 10ma, v no or v nc = 0v to v+ t min to t max 5.7 ? +25? 0.05 0.15 v+ = 2.7v, i com = 10ma, v no or v nc = 0.7v, 1.2v, 2v (max4729) t min to t max 0.2 +25? 0.2 0.34 on-resistance match between channels (notes 3, 6) ? r on v+ = 2.7v, i com = 10ma, v no or v nc = 0.7v, 1.2v, 2v (max4730) t min to t max 0.37 ? +25? 0.8 1.5 v+ = 2.7v, i com = 10ma, v no or v nc = 0.7v, 1.2v, 2v (max4729) t min to t max 2.2 +25? 0.45 0.95 on-resistance flatness (note 4) r flat ( on ) v+ = 2.7v, i com = 10ma, v no or v nc = 0.7v, 1.2v, 2v (max4730) t min to t max 1.3 ? +25? -2 +0.01 +2 no, nc off-leakage current i no (off), i nc ( off ) v+ = 3.3v, v com = 1v, 3v, v no or v nc = 3v, 1v t min to t max -3 +3 na +25? -3 +0.01 +3 com on-leakage current i com ( on ) v+ = 3.3v, v com = 1v or 3v, v no or v nc = 1v, 3v, or float t min to t max -4 +4 na digital inputs input logic high v ih t min to t max 2.0 v input logic low v il t min to t max 0.4 v input leakage current i in v in = 0v or 3.6v t min to t max -1 +0.005 +1 ? note 1: signals on no, nc, or com exceeding v+ or gnd are clamped by internal diodes. signals on in exceeding gnd are clamped by an internal diode. limit forward-diode current to maximum current rating.
max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches _______________________________________________________________________________________ 3 parameter symbol conditions t a min typ max units dynamic +25? 18 45 turn-on time (note 5) t on v no , v nc = 2v, r l = 300 ? , c l = 35pf, figure 1 t min to t max 45 ns +25? 10 26 turn-off time (note 5) t off v no , v nc = 2v, r l = 300 ? , c l = 35pf, figure 1 t min to t max 26 ns +25? 5 break-before-make (note 5) v no , v nc = 2v, r l = 300 ? , c l = 35pf, figure 1 t min to t max 1 ns charge injection q v gen = 0v, r gen = 0, c l = 1.0nf, figure 3 3pc no, nc off-capacitance c no(off) , c nc ( off ) f = 1mhz, figure 4 6.5 pf switch on-capacitance c on f = 1mhz, figure 4 19.5 pf f = 1mhz -67 off-isolation (note 7) v iso v no = v nc = 1v rms , r l = 50 ? , c l = 5pf, figure 2 f = 10mhz -45 db on-channel bandwidth -3db bw signal = 0dbm, 50 ? in and out, figure 2 300 mhz f = 1mhz -67 crosstalk (note 8) v ct no or nc = 1v rms , c l = 5pf, r l = 50 ? , figure 2 f = 10mhz -52 db total harmonic distortion thd r l = 600 ? , v nc or v no = 2v p-p , f = 20hz to 20khz +25? 0.035 % power supply power-supply range v+ 1.8 5.5 v +25? 0.001 positive supply current i+ v+ = 5.5v, v in = 0v or 5.5v t min to t max 1 ? electrical characteristics (continued) (v+ = +2.7v to +3.6v, v ih = +2.0v, v il = +0.4v, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 2) note 2: sc70 and ?fn parts are 100% tested at t a = +25?. limits across the full-temperature range are guaranteed by design and correlation. note 3: ? r on = r on(max) - r on(min) . note 4: r on flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. note 5: guaranteed by design. note 6: ?fn is guaranteed by design. note 7: off-isolation = 20log10 (vo / vi), where vo is v com and vi is either v nc or v no from the network analyzer. note 8: crosstalk is measured between the two switches.
max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches 4 _______________________________________________________________________________________ t ypical operating characteristics (t a = +25?, unless otherwise noted.) 0 1.0 2.0 1.5 2.5 3.0 02 1345 on-resistance vs. v com (v+ = +5v) max4729 toc04 com voltage (v) r on ( ? ) t a = -40 c t a = +25 c t a = +85 c -100 100 0 300 200 400 500 -40 10 -15 35 60 85 on/off-leakage current vs. temperature max4729 toc05 temperature ( c) on/off-leakage current (pa) on, v cc = 5v off, v cc = 5v on, v cc = 3v off, v cc = 3v 0 20 10 40 30 50 60 02 1345 charge injection vs. v com max4729 toc06 v com (v) charge injection (pc) 1.8v 5v 3v 0 200 600 400 800 1000 -40 10 -15 35 60 85 supply current vs. temperature max4729 toc07 temperature ( c) supply current (pa) v+ = 5v v+ = 3v 0.001 100 10,000 1000 100,000 1,000,000 supply current vs. logic input voltage max4729 toc08 logic input voltage (v) supply current (na) 02 46 10 1 0.1 0.01 v+ = 5v v+ = 3v 0 10 5 20 15 30 25 35 t on /t off vs. supply voltage max4729 toc09 supply voltage (v) t on /t off (ns) 1.5 2.5 3.5 4.5 5.5 t on t off 0 10 5 20 15 25 30 02 1345 on-resistance vs. v com max4729 toc01 v com (v) r on ( ? ) v+ = 1.8v v+ = 2.5v v+ = 3v v+ = 4.5v v+ = 5v 0 5 10 15 20 25 30 35 40 0 0.6 0.3 0.9 1.2 1.5 1.8 on-resistance vs. v com (v+ = +1.8v) max4729 toc02 v com (v) r on ( ? ) t a = -40 c t a = +25 c t a = +85 c 0 1 3 2 4 5 0 1.0 0.5 1.5 2.0 2.5 3.0 on-resistance vs. v com (v+ = +3v) max4729 toc03 v com (v) r on ( ? ) t a = -40 c t a = +25 c t a = +85 c
0 10 5 20 15 25 30 -40 10 -15 35 60 85 max4729 toc10 temperature ( c) t on /t off (ns) v+ = 3v t on /t off vs. temperature t on t off v+ = 5v v+ = 3v v+ = 5v off-isolation max4729 toc11 frequency (mhz) response (db) 100 10 1 -80 -70 -60 -50 -40 -30 -20 -10 0 -90 0.1 1000 v+ = 3v v+ = 5v 50 ? in and out crosstalk max4729 toc12 frequency (mhz) response (db) 100 10 1 -80 -70 -60 -50 -40 -30 -20 -10 0 -90 0.1 1000 v+ = 3v v+ = 5v 50 ? in and out max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches _______________________________________________________________________________________ 5 on-loss bandwidth max4729 toc13 frequency (mhz) response (db) 100 10 1 0.1 -6 -5 -4 -3 -2 -1 0 -7 0.01 1000 v+ = 3v v+ = 5v 50 ? in and out total harmonic distortion vs. frequency max4729 toc14 frequency (khz) thd (%) 10 1 0.1 0.01 0.02 0.03 0.04 0.05 0.06 0 0.01 100 output impedance = 600 ? f = 20hz to 20khz v+ = 3v, v gen = 3v p-p v+ = 3v, v gen = 2v p-p v+ = 5v, v gen = 5v p-p v+ = 5v, v gen = 3v p-p total harmonic distortion vs. frequency max4729 toc15 frequency (khz) thd (%) 10 1 0.1 0.01 0.02 0.03 0.04 0.05 0.06 0 0.01 100 output impedance = 600 ? max4730 v+ = 3v, v gen = 3v p-p v+ = 3v, v gen = 2v p-p v+ = 5v, v gen = 5v p-p v+ = 5v, v gen = 3v p-p t ypical operating characteristics (continued) (t a = +25?, unless otherwise noted.) pin description pin max4729 max4730 sc70 dfn sc70/dfn name function 13 6i n logic-control input 22 5v + positive supply voltage 34 2 gnd ground 46 3n c analog switch normally closed terminal 55 4 com analog switch common terminal 61 1n o analog switch normally open terminal
max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches 6 _______________________________________________________________________________________ 50% 0v r l in v in v+ t off 0v t on c l v+ v com max4729 max4730 gnd t r < 5ns t f < 5ns no/nc v no/nc v+ open nc/no com r l in v in c l v+ v com max4729 max4730 gnd no v s v+ v s nc com in 50% 90% 90% v no/nc v com 50% 0v v+ t bbm in 50% 90% v s v com 0v 90% t bbm t bbm = t on(nc) - t off(no) or t bbm = t on(no) - t off(nc) figure 1. switching times detailed description the max4729/max4730 single-pole/double-throw (spdt) switches operate from a single supply ranging from +1.8v to +5.5v. these switches provide low 3.5 ? on-resistance (r on ), as well as 0.45 ? r on flatness with a 2.7v supply. these devices typically consume only 1na of supply current, making them suitable for use in low-power, portable applications. the max4729/ max4730 feature low-leakage currents over the entire temperature range, ttl/cmos-compatible digital logic, and excellent ac characteristics. applications information digital control inputs the max4729/max4730 logic inputs accept up to +5.5v, regardless of supply voltage. for example, with a +3.3v supply, in can be driven low to gnd and high to +5.5v, allowing for mixing of logic levels in a system. with a 2.7v to 3.6v power-supply voltage range, the logic thresholds are set so v il = 0.4v (max) and v ih = 2v (min). power-supply sequencing and overvoltage protection caution: do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the device. proper power-supply sequencing is recommended for all cmos devices. always apply v+ before applying analog signals, espe- cially if the analog signal is not current limited.
max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches _______________________________________________________________________________________ 7 measurements are standardized against short at socket terminals. off-isolation is measured between com and ?ff?no or nc terminal on each switch. on-loss is measured between com and ?n?terminal on each switch. crosstalk is measured from one channel to all other channels. signal direction through switch is reversed; worst values are recorded. v+ v+ v meas gnd v+ in no or nc com v in max4729 max4730 on-loss = 20log v meas v ref crosstalk = 20log v meas v ref network analyzer 50 ? 50 ? 50 ? 50 ? meas ref 0.1 f 50 ? v ref off-isolation = 20log v meas v ref figure 2. off-isolation/on-loss bandwidth, crosstalk v gen gnd c l v out v+ v out ? v out q = ( ? v out )(c l ) com switch input on 0v v+ off off in v+ r gen in max4729 max4730 switch output logic input (0 to v+) no or nc figure 3. charge injection v+ gnd v+ in no or nc com max4729 max4730 as required f = 1mhz capacitance analyzer figure 4. no, nc, and com capacitance chip information transistor count: 190 process: cmos
max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos analog switches 8 _______________________________________________________________________________________ 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 .) sc70, 6l.eps package outline, 6l sc70 21-0077 1 1 c
max4729/max4730 low-voltage 3.5 ? ? , spdt, cmos 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. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 _____________________ 9 2005 maxim integrated products printed usa is a registered trademark of maxim integrated products, inc. 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 .) 6l udfn.eps l top view d e side view a1 pin 1 index area a a 0.64 common dimensions pin 1 0.075x45 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
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