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general description the max4706/max4707 single-pole/single-throw(spst) switches operate from a single 1.8v to 5.5v sup- ply. the max4706 is a normally closed (nc) switch and the max4707 is the normally open (no) version. these switches provide 2 ? on-resistance (r on ) and 0.6 ? r on flatness with a +2.7v supply. these devices typi- cally consume only 0.02a of quiescent current, mak-ing them suitable for use in low-power, portable applications. the max4706/max4707 feature low-leak-age currents over the entire temperature range, ttl/cmos-compatible digital logic, and excellent ac characteristics. the max4706/max4707 are offered in small 5-pin and 6-pin sc70 and 6-pin dfn packages. applications battery-operated equipmentaudio signal routing low-voltage data-acquisition systems sample-and-hold circuits communications circuits relay replacement features ? guaranteed r on 2 ? max (+2.7v supply) ? guaranteed r on flatness: 0.6 ? (+2.7v supply) ? excellent ac characteristics high off-isolation: -67db at 1mhz-3db bandwidth: 190mhz ? 0.013% total harmonic distortion ? low supply current: 0.02a ? tiny sc70 and dfn packages ? 1.8v to 5.5v single-supply operation max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches ________________________________________________________________ maxim integrated products 1 nc in gnd 15 v+ com max4706 sc70-5 top view 23 4 no in gnd 15 v+ com max4707 sc70-5 234 nc in gnd 16 v+ 5 n.c. n.c. 5 com max4706 sc70-6 234 no in gnd 16 v+ com max4707 sc70-6 234 n.c. = not internally connected. switches shown for logic 0 input. input 01 switch state max4706 on off max4707 on off pin 6 6 xyz 4 note: sc70-6 pack age has letteringnearest pin 6. 5 123 pin 5 5 xyz 4 note: sc70-5pa ckage has letteringnearest pin 5. 123 pin configurations/functional diagrams/truth tables ordering information 19-3159; rev 0; 1/04 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxims website at www.maxim-ic.com. part temp range pin- package top mark max4706 exk-t -40c to +85c 5 sc70-5 afo max4706ext-t -40c to +85c 6 sc70-6 abs max4706elt-t* -40c to +85c 6 dfn-6 max4707 exk-t -40c to +85c 5 sc70-5 afp max4707ext-t -40c to +85c 6 sc70-6 abt max4707elt-t* -40c to +85c 6 dfn-6 pin configurations/functional diagrams/truth tables continued at end of data sheet. * future productcontact factory for availability. downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches 2 _______________________________________________________________________________________ absolute maximum ratings 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 = +25c.) (note 2) stresses beyond those listed under absolute 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. (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) ................................... 30ma continuous current com, no, nc ................................. 160ma peak current com, no, nc (pulsed at 1ms, 10% duty cycle) ................................ 300ma continuous power dissipation (t a = +70 o c) 5-pin sc70 (derate 3.1mw/ o c above +70 o c) ..............247mw 6-pin sc70 (derate 3.1mw/ o c above +70 o c) ..............245mw 6-pin dfn (derate 2.1mw/ o c above +70 c)...........167.7mw operating temperature range ...........................-40 c to +85 c storage temperature range .............................-65 c to +150 c lead temperature (soldering, 10s) .................................+300 c junction temperature ......................................................+150c parameter symbol conditions min typ max units analog switch analog signal range v com , v no , v nc 0v + v t a = +25c 2.0 3.0 on-resistance r on v+ = 2.7v, i com = 10ma, v no or v nc = 0v to v+ t a = t min to t max 3.5 t a = +25c 0.6 0.85 on-resistance flatness(note 3) r flat ( on ) v+ = 2.7v, i com = 10ma, v no or v nc = 0v to v+ t a = t min to t max 0.97 t a = +25c -1 0.1 +1 no, nc off-leakagecurrent i no(off), i nc ( off ) v+ = 3.3v, v com = 1v, 3v; v no or v nc = 3v, 1v t a = t min to t max -2 +2 na t a = +25c -1 0.1 +1 com on-leakage current i com ( on ) v+ = 3.3v, v com = 1v or 3v; v no or v nc = 1v, 3v, or floating t a = t min to t max -2 +2 na t a = +25c -1 0.1 +1 com off-leakage current i com ( off ) v+ = 3.3v, v com = 1v or 3v; v no or v nc = 3v, 1v t a = t min to t max -2 +2 na digital inputs input logic high v ih 2.0 v input logic low v il 0.4 v input current i in v in = 0v or v+ -1 0.05 +1 a dynamic t a = +25c 12 20 turn-on time (note 4) t on v com = 2v, r l = 300 , c l = 35pf, figure 2 t a = t min to t max 20 ns t a = +25c 8 15 turn-off time (note 4) t off v com = 2v, r l = 300 , c l = 35pf, figure 2 t a = t min to t max 15 ns charge injection q v gen = 0v, r gen = 0, c l = 1.0nf, figure 3 5 pc no, nc off-capacitance c no(off) , c nc ( off ) v no , v nc = gnd, f = 1mhz, figure 5 17 pf switch on-capacitance c on v com = v no/nc , f = 1mhz, figure 5 35 pf note 1: signals on no, nc, com, or in exceeding v+ or gnd are clamped by internal diodes. limit forward-diode current to maxi- mum current rating. downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches _______________________________________________________________________________________ 3 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 = +25c.) (note 2) note 2: sc70 and dfn packaged parts are 100% tested at +25c. limits across the full temperature range are guaranteed bydesign and correlation. note 3: 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 4: guaranteed by design. note 5: off-isolation = 20log10 (vo / vi), where vo is v com and vi is either v nc or v no from the network analyzer. parameter symbol conditions min typ max units f = 10mhz -62 off-isolation (note 5) v iso v no = v nc = 1v rms, r l = 50 , c l = 5pf, figure 4 f = 1mhz -82 db on-channel bandwidth-3db bw r l = 50 , c l = 5pf, figure 4 190 mhz total harmonic distortion thd r l = 600 , 2v p - p , f = 20h z to 20kh z t a = +25c 0.013 % supply t a = +25c 0.02 positive supply current i+ v+ = 5.5v, v in = 0v or v+ t a = t min to t max 1 a t ypical operating characteristics (t a = +25c, unless otherwise noted.) on-resistance vs. v com max4706 toc01 v com (v) on-resistance ( ? ) 5 4 3 2 1 1 2 3 4 5 6 70 06 v+ = 1.8v v+ = 2.5v v+ = 3v v+ = 4.5v v+ = 5v on-resistance vs. v com max4706 toc02 v com (v) on-resistance ( ? ) 5 4 1 2 3 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 06 t a = +85 c t a = +25 c t a = -40 c v+ = 5v on-resistance vs. v com max4706 toc03 v com (v) on-resistance ( ? ) 3 2 1 0.5 1.0 1.5 2.0 2.5 0 04 t a = +85 c t a = +25 c t a = -40 c v+ = 3v downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches 4 _______________________________________________________________________________________ t ypical operating characteristics (continued) (t a = +25c, unless otherwise noted.) on-leakage current vs. temperature max4706 toc04 temperature ( c) on-leakage current (na) -15 10 35 60 0.10 1.000.01 -40 85 v+ = 5v v+ = 3v off-leakage current vs. temperature max4706 toc05 temperature ( c) off-leakage current (na) -15 10 35 60 0.10 1.000.01 -40 85 v+ = 5v v+ = 3v charge injection vs. v com max4607 toc06 v c0m (v) charge injection (pc) 5 4 3 2 1 5 10 15 20 25 30 35 40 45 0 06 5v 3v supply current vs. temperature max4706 toc07 temperature ( c) supply current (na) 0 0.50 1.00 1.50 2.00 2.50 3.00 -0.50 v+ = 5v v+ = 3v 50 0 -50 100 v in = v+; all other switchterminals are floating t on /t off vs. supply voltage max4706 toc08 supply voltage (v) t on /t off (ns) 5 4 3 2 1 5 10 15 20 25 30 35 0 06 t on t off t on /t off vs. temperature max4706 toc09 temperature ( c) t on /t off (ns) 60 35 10 -15 2 4 6 8 10 12 0 -40 85 t on v+ = 5v t off t on /t off vs. temperature max4706 toc10 temperature ( c) t on /t off (ns) 60 35 10 -15 2 4 6 8 10 12 14 16 18 0 -40 85 t on v+ = 3v t off on-loss bandwidth max4706 toc11 frequency (mhz) response (db) 100 10 1 0.1 -6 -5 -4 -3 -2 -1 0 -7 0.01 1000 v+ = 5v v+ = 3v 50 ? in and out downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches _______________________________________________________________________________________ 5 off-isolation max4706 toc12 frequency (mhz) response (db) 100 10 1 -80 -70 -60 -50 -40 -30 -20 -10 0 -90 0.1 1000 50 ? in and out v+ = 3v v+ = 5v pin description pin max4706 max4707 sc70-5 sc70-6 dfn-6 sc70-5 sc70-6 dfn-6 name function 11 61 16 com analog switch common terminal 22 2 nc analog switch normally closed terminal 33 13 31 gnd ground 44 34 43 in logic input control 56 45 64 v+ positive supply voltage 2 22 no analog switch normally open terminal 5 55 5n . c. no connection. not internally connected. t ypical operating characteristics (continued) (t a = +25c, unless otherwise noted.) total harmonic distortion vs. frequency max4706 toc13 frequency (khz) thd (%) 10 1 0.1 0.002 0.004 0.006 0.008 0.010 0.012 0.014 0.016 0.018 0.020 0 0.01 100 input 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 downloaded from: http:///
detailed description the max4706/max4707 spst switches operate from asingle supply ranging from 1.8v to 5.5v. the max4706 is a normally closed (nc) switch and the max4707 is the normally open (no) version. these switches provide 3.5 ? on-resistance (r on ) and 0.9 ? r on flatness with a +2.7v supply. these devices typically consume only0.02a of quiescent current, making them suitable for use in low-power, portable applications. the max4706/max4707 feature low-leakage currents over the entire temperature range, ttl/cmos-compatibledigital logic, and excellent ac characteristics. the max4706/max4707 are offered in small 5-pin and 6-pin sc70 and 6-pin dfn packages. applications information the max4706/max4707 operate from a single +1.8v to+5.5v supply. the max4706/max4707 accept bipolar input signals when v+ and gnd are biased from bipolar supplies. for example, the switch accepts a 1v p-p input when v+ = 2v and gnd = -2v. esd-protection diodesare internally connected between each analog switch terminal and both v+ and gnd. one of these diodes conducts if any analog signal is greater than v+ or less than gnd (figure 1). virtually all analog leakage current is attributed to the esd diodes. each diode is biased by the analog signal and either v+ or gnd. the esd diodes leakage currents vary as the signal changes. power-supply sequencing and overvoltage protection caution: do not exceed the absolute maximum ratings because stresses beyond the listed ratings may cause permanent damage to the device. proper power-supply sequencing is recommended for all cmos devices. always apply v+ before applying analog signals, especially if the analog signal is not current-limited. max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches 6 _______________________________________________________________________________________ v+ positive supply d1d2 n0 v g gnd com max4706max4707 figure 1. overvoltage protection using two external blockingdiodes t r < 5ns t f < 5ns 50% 0v logic input r l no or nc gnd c l includes fixture and stray capacitance. v out = v com ( r l ) r l + r on switch input in v+ t off 0v com switchoutput 0.9 x v 0ut 0.9 x v 0ut t on v out switch output logic input logic input waveforms inverted for switchesthat have the opposite logic sense. v+ c l v+ v out v com max4706max4707 figure 2. switching time downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches _______________________________________________________________________________________ 7 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 max4706max4707 switch output logic input (0 to v+) no or nc figure 3. charge injection measurements are standardized against short at socket terminals. off-isolation is measured between com and off terminal on each switch. on-loss is measured between com and on terminal on each switch. signal direction through switch is reversed; worst values are recorded. v+ v+ v meas gnd v+ in no or nc com v in max4706max4707 off-isolation = 20log v meas v ref on-loss = 20log v meas v ref network analyzer 50 ? 50 ? 50 ? 50 ? meas ref 0.1 f 50 ? v ref figure 4. off-isolation and on-loss bandwidth v+ gnd v+ in no or nc com max4706max4707 as required f = 1mhz capacitance analyzer figure 5. channel off/on-capacitance chip information transistor count: 190process: cmos downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches 8 _______________________________________________________________________________________ nc v+ in 16 com 5 n.c. gnd max4706 dfn-6 top view 234 no v+ in 16 com 5 n.c. gnd dfn-6 234 max4707 n.c. = not internally connected. switches shown for logic 0 input. input 01 switch state max4706 on off max4707 on off pin configurations/functional diagrams/truth tables (continued) downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , 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 .) sc70, 5l.eps downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches 10 ______________________________________________________________________________________ sc70, 6l.eps 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 .) downloaded from: http:///
max4706/max4707 low-voltage, 2 ? , spst, cmos analog switches 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. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 11 ? 2004 maxim integrated products printed usa is a registered trademark of maxim integrated products. 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 1 1 rev. document control no. approval proprietary information title: 21-0147 b 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 3 2 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 -- e -- downloaded from: http:///

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