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cmos low voltage 2 spst switches adg701/adg702 rev. c information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ? 2006 analog devices, inc. all rights reserved. features 1.8 v to 5.5 v single supply 2 (typical) on resistance low on resistance flatness C3 db bandwidth > 200 mhz rail-to-rail operation fast switching times t on 18 ns t off 12 ns typical power consumption < 0.01 w ttl/cmos-compatible applications battery-powered systems communications systems sample-and-hold systems audio signal routing video switching mechanical reed relay replacement functional block diagram d s in adg701 d s in adg702 switches shown for a logic 1 input 00039-001 figure 1. general description the adg701/adg702 are monolithic cmos spst switches. these switches are designed on an advanced submicron process that provides low power dissipation yet high switching speed, low on resistance, and low leakage currents. in addition, ?3 db bandwidths of greater than 200 mhz can be achieved. the adg701/adg702 can operate from a single 1.8 v to 5.5 v supply, making it ideal for use in battery-powered instruments and with the new generation of dacs and adcs from analog devices, inc. figure 1 shows that with a logic input of 1, the switch of the adg701 is closed and that of the adg702 is open. each switch conducts equally well in both directions when on. the adg701/adg702 are available in 5-lead sot-23, 6-lead sot-23, and 8-lead msop packages. product highlights 1. 1.8 v to 5.5 v single-supply operation. the adg701/adg702 offer high performance, including low on resistance and fast switching times, and are fully specified and guaranteed with 3 v and 5 v supply rails. 2. ver y l ow r on (3 maximum at 5 v, 5 maximum at 3 v). at 1.8 v operation, r on is typically 40 over the tempera- ture range. 3. on resistance flatness r flat(on) (1 maximum). 4. ?3 db bandwidth > 200 mhz. 5. low power dissipation. cmos construction ensures low power dissipation. 6. fast t on /t off . table 1. related devices part no. description adg701l/adg702l low voltage 2 spst switches with guaranteed leakage specifications
adg701/adg702 rev. c | page 2 of 12 table of contents features .............................................................................................. 1 applications....................................................................................... 1 functional block diagram .............................................................. 1 general description ......................................................................... 1 product highlights ........................................................................... 1 revision history ............................................................................... 2 specifications..................................................................................... 3 absolute maximum ratings............................................................ 5 esd caution.................................................................................. 5 pin configurations and function descriptions ........................... 6 typical performance characteristics ..............................................7 terminology .......................................................................................8 test circuits........................................................................................9 applications information .............................................................. 10 adg701/adg702 supply voltages......................................... 10 bandwidth ................................................................................... 10 off isolation ................................................................................ 10 outline dimensions ....................................................................... 11 ordering guide .......................................................................... 12 revision history 7/06rev. b to rev. c changes to product highlights....................................................... 1 added table 1.................................................................................... 1 changes to table 2............................................................................ 3 changes to table 3............................................................................ 4 added pb-free reflow soldering to absolute maximum ratings .. 5 changes to ordering guide .......................................................... 13 6/04rev. a to rev. b updated format..................................................................universal added 5-lead sot-23 package ........................................universal updated outline dimensions ....................................................... 10 changes to ordering guide .......................................................... 11 8/98rev. 0 to rev. a
adg701/adg702 rev. c | page 3 of 12 specifications v dd = 5 v 10%, gnd = 0 v. temperature range for b version is ?40c to +85c, unless otherwise noted. table 2. b version parameter +25c C40c to +85c unit test conditions/comments analog switch analog signal range 0 v to v dd v on resistance (r on ) 2 typ v s = 0 v to v dd , i s = C10 ma; figure 11 3 4 max on resistance flatness (r flat(on) ) 0.5 typ v s = 0 v to v dd , i s = C10 ma 1.0 max leakage currents v dd = 5.5 v source off leakage, i s (off) 0.01 na typ v s = 4.5 v/1 v, v d = 1 v/4.5 v; figure 12 drain off leakage, i d (off) 0.01 na typ v s = 4.5 v/1 v, v d = 1 v/4.5 v; figure 12 channel on leakage, i d , i s (on) 0.01 na typ v s = v d = 1 v, or 4.5 v; figure 13 digital inputs input high voltage, v inh 2.4 v min input low voltage, v inl 0.8 v max input current i inl or i inh 0.005 a typ v in = v inl or v inh 0.1 a max dynamic characteristics 1 t on 12 ns typ r l = 300 , c l = 35 pf 18 ns max v s = 3 v; figure 14 t off 8 ns typ r l = 300 , c l = 35 pf 12 ns max v s = 3 v; figure 14 charge injection 5 pc typ v s = 2 v, r s = 0 , c l = 1 nf; figure 15 off isolation C55 db typ r l = 50 , c l = 5 pf, f = 10 mhz C75 db typ r l = 50 , c l = 5 pf, f = 1 mhz; figure 16 bandwidth C3 db 200 mhz typ r l = 50 , c l = 5 pf; figure 17 c s (off) 17 pf typ c d (off) 17 pf typ c d , c s (on) 38 pf typ power requirements v dd = 5.5 v digital inputs = 0 v or 5 v i dd 0.001 a typ 1.0 a max 1 guaranteed by design, not subject to production test.
adg701/adg702 rev. c | page 4 of 12 v dd = 3 v 10%, gnd = 0 v. temperature range for b version is ?40c to +85c, unless otherwise noted. table 3. b version parameter +25c ?40c to +85c unit test conditions/comments analog switch analog signal range 0 v to v dd v on resistance (r on ) 3.5 typ v s = 0 v to v dd , i s = ?10 ma; figure 11 5 6 max on resistance flatness (r flat(on) ) 1.5 typ v s = 0 v to v dd , i s = ?10 ma leakage currents v dd = 3.3 v source off leakage i s (off) 0.01 na typ v s = 3 v/1 v, v d = 1 v/3 v; figure 12 drain off leakage i d (off) 0.01 na typ v s = 3 v/1 v, v d = 1 v/3 v; figure 12 channel on leakage i d , i s (on) 0.01 na typ v = v d = 1 v, or 3 v; figure 13 digital inputs input high voltage, v inh 2.0 v min input low voltage, v inl 0.4 v max input current i inl or i inh 0.005 a typ v in = v inl or v inh 0.1 a max dynamic characteristics 1 t on 14 ns typ r l = 300 , c l = 35 pf 20 ns max v s = 2 v, figure 14 t off 8 ns typ r l = 300 , c l = 35 pf 13 ns max v s = 2 v, figure 14 charge injection 4 pc typ v s = 1.5 v, r s = 0 , c l = 1 nf; figure 15 off isolation ?55 db typ r l = 50 , c l = 5 pf, f = 10 mhz ?75 db typ r l = 50 , c l = 5 pf, f = 1 mhz; figure 16 bandwidth ?3 db 200 mhz typ r l = 50 , c l = 5 pf; figure 17 c s (off) 17 pf typ c d (off) 17 pf typ c d , c s (on) 38 pf typ power requirements v dd = 3.3 v digital inputs = 0 v or 3 v i dd 0.001 a typ 1.0 a max 1 guaranteed by design, not subject to production test.
adg701/adg702 rev. c | page 5 of 12 absolute maximum ratings t a = +25c, unless otherwise noted. table 4. parameter rating v dd to gnd ?0.3 v to +7 v analog and digital inputs 1 ?0.3 v to v dd + 0.3 v or 30 ma, whichever occurs first continuous current, s or d 30 ma peak current, s or d 100 ma, pulsed at 1 ms, 10% duty cycle maximum operating temperature range industrial (b version) ?40c to +85c storage temperature range ?65c to +150c junction temperature 150c msop package, power dissipation 315 mw ja thermal impedance 206c/w jc thermal impedance 44c/w sot-23 package, power dissipation 282 mw ja thermal impedance 229.6c/w jc thermal impedance 91.99c/w lead temperature, soldering vapor phase (60 sec) 215c infrared (15 sec) 220c pb-free reflow soldering peak temperature 260(+0/?5)c time at peak temperature 10 sec to 40 sec esd 2 kv 1 overvoltages at in, s, or d are clamped by internal diodes. current should be limited to the maximum ratings given. stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. only one absolute maximum rating may be applied at any one time. table 5. truth table adg701 in adg702 in switch condition 0 1 off 1 0 on esd caution esd (electrostatic discharge) sensitive device. electros tatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge wi thout detection. although this product features proprietary esd protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. therefore, proper esd precautions are recommended to avoid performance degradation or loss of functionality.
adg701/adg702 rev. c | page 6 of 12 pin configurations and function descriptions 00039-002 nc = no connect adg701/ adg702 top view (not to scale) d 1 nc 2 nc 3 v dd 4 s gnd in nc 8 7 6 5 00039-003 nc = no connect adg701/ adg702 top view (not to scale) d 1 s 2 g nd 3 v dd 6 nc 5 in 4 00039-004 adg701/ adg702 top view (not to scale) d 1 s 2 g nd 3 v dd 5 in 4 figure 2. 8-lead msop figure 3. 6-lead sot-23 figure 4. 5-lead sot-23 table 6. pin descriptions pin no. 8-lead msop 6-lead sot-23 5-lead sot-23 mnemonic description 1 1 1 d drain terminal. can be an input or output. 2, 3, 5 5 nc no connect 4 6 5 v dd most positive power supply potential. 6 4 4 in logic control input. 7 3 3 gnd ground (0 v) reference. 8 2 2 s source terminal. can be an input or output.
adg701/adg702 rev. c | page 7 of 12 typical performance characteristics 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 00039-005 v d or v s (drain or source voltage (v)) r on ( ) v dd = 2.7v t a = 25 c v dd = 3.0v v dd = 5.0v v dd = 4.5v figure 5. on resistance as a function of v d (v s ) single supplies 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 00039-006 v d or v s (drain or source voltage (v)) r on ( ) +85 c +25 c ?40 c v dd = 3v figure 6. on resistance as a function of v d (v s ) for different temperatures v dd = 3 v 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 00039-007 v d or v s (drain or source voltage (v)) r on ( ) v dd = 5v +85 c +25 c ?40 c figure 7. on resistance as a function of v d (v s ) for different temperatures v dd = 5 v 10m 1n 10n 100n 1 10 100 1m 10 100 1k 10k 100k 1m 10m 00039-008 frequency (hz) i supply (a) v dd = 5v figure 8. supply current vs. input switching frequency ?10 ?110 ?100 ?90 ?80 ?70 ?60 ?50 ?40 ?30 ?20 10k 100k 1m 10m 100m 00039-009 frequency (hz) off isolation (db) v dd = 5v, 3v figure 9. off isol ation vs. frequency 0 ?6 ?4 ?2 10k 100k 1m 10m 100m 00039-010 frequency (hz) on response (db) v dd = 3v figure 10. bandwidth
adg701/adg702 rev. c | page 8 of 12 terminology table 7. term description r on ohmic resistance between d and s. r flat(on) flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the specified analog signal range. i s (off) source leakage current with the switch off. i d (off) drain leakage current with the switch off. i d , i s (on) channel leakage current with the switch on. v d (vs) analog voltage on terminals d and s. c s (off) off switch source capacitance. c d (off) off switch drain capacitance. c d , c s (on) on switch capacitance. t on delay between applying the digital cont rol input and the output switching on. see figure 14 . t off delay between applying the digital cont rol input and the output switching off. off isolation a measure of unwanted signal coupling through an off switch. charge injection a measure of the glitch impulse transferred fr om the digital input to the an alog output during switching. bandwidth the frequency at which the output is attenuated by ?3 db. on response the frequency response of the on switch. on loss the voltage drop across the on switch seen in figure 10 as the number of decibels that the signal is from 0 db at very low frequencies.
adg701/adg702 rev. c | page 9 of 12 test circuits sd v s r on = v1/i ds i ds v1 00039-011 sd v s v d i s (off) i d (off) a a 00039-012 sd v s v d i d (on) a 00039-013 figure 11. on resistance figure 12. off leakage figure 13. on leakage 0.1 f in sd v dd r l 300 c l 35pf v out v out t on t off v in v in v dd gnd adg701 adg702 50% 50% 90% 90% 50% 50% v s 00039-014 figure 14. switching times 00039-015 v in v in v out on off v out in gnd v dd v dd c l 1nf v out s r s v s d q inj = c l v out adg701 adg702 figure 15. charge injection 00039-016 v dd r l 50 0.1 f v out v in v s v dd in sd gnd figure 16. off isolation 00039-017 v dd r l 50 0.1 f v out v in v s v dd in sd gnd figure 17. bandwidth
adg701/adg702 rev. c | page 10 of 12 applications information the adg701/adg702 belong to the analog devices family of cmos switches. this series of general-purpose switches has improved switching times, lower on resistance, higher bandwidth, low power consumption, and low leakage currents. adg701/adg702 supply voltages functionality of the adg701/adg702 extends from 1.8 v to 5.5 v single supply, making the parts ideal for battery-powered instruments, where power efficiency and performance are important design parameters. it is important to note that the supply voltage affects the input signal range, on resistance, and switching times of the part. the effects of the power supplies can be clearly seen in the typical performance characteristics and the specifications sections. for v dd = 1.8 v operation, r on is typically 40 over the temperature range. bandwidth figure 18 illustrates the parasitic components that affect the ac performance of cmos switches (a box surrounds the switch). additional external capacitances further degrade performance by affecting feedthrough, crosstalk, and system bandwidth. 00039-018 v in sd r on c ds c d c load r load v out figure 18. switch represented by equivalent parasitic components the transfer function that describes the equivalent diagram of the switch ( see figure 18 ) is of the form (a)s, shown in the following equation: ? ? ? ? ? ? + + = 1)( 1)( )( tt on dson t rcrs crs rsa where c t = c load + c d + c ds . the signal transfer characteristic is dependent on the switch channel capacitance, c ds . this capacitance creates a frequency zero in the numerator of the transfer function a(s). because the switch on resistance is small, this zero usually occurs at high frequencies. the bandwidth is a function of the switch output capacitance combined with c ds and the load capacitance. the frequency pole corresponding to these capacitances appears in the denominator of a(s). the dominant effect of the output capacitance, c d , causes the pole breakpoint frequency to occur first. to maximize bandwidth, a switch must have a low input and output capacitance and low on resistance. the on response vs. frequency for the adg701/ adg702 can be seen in figure 10 . off isolation off isolation is a measure of the input signal coupled through an off switch to the switch output. the capacitance, c ds , couples the input signal to the output load when the switch is off, as shown in figure 19 . 00039-019 v in sd c ds c d c load r load v out figure 19. off isolation is affected by external load resistance and capacitance the larger the value of c ds , the larger the values of feedthrough produced. figure 9 illustrates the drop in off isolation as a function of frequency. from dc to roughly 1 mhz, the switch shows better than ?75 db isolation. up to frequencies of 10 mhz, the off isolation remains better than ?55 db. as the frequency increases, more of the input signal is coupled through to the output. off isolation can be maximized by choosing a switch with the smallest c ds possible. the values of load resistance and capacitance also affect off isolation, because they contribute to the coefficients of the poles and zeros in the transfer function of the switch when open. ? ? ? ? ? ? + + = 1))(( 1)( )( t load dsload t crs crs rsa
adg701/adg702 rev. c | page 11 of 12 outline dimensions 0.80 0.60 0.40 8 0 4 8 1 5 4.90 bsc pin 1 0.65 bsc 3.00 bsc seating plane 0.15 0.00 0.38 0.22 1.10 max 3.00 bsc coplanarity 0.10 0.23 0.08 compliant to jedec standards mo-187-aa figure 20. 8-lead mini small outline package [msop] (rm-8) dimensions shown in millimeters 1 3 4 5 2 6 2.90 bsc 1.60 bsc 2.80 bsc 1.90 bsc 0.95 bsc 0.22 0.08 10 4 0 0.50 0.30 0.15 max 1.30 1.15 0.90 seating plane 1.45 max 0.60 0.45 0.30 pin 1 indicator compliant to jedec standards mo-178-ab figure 21. 6-lead small outline transistor package [sot-23] (rt-6) dimensions shown in millimeters
adg701/adg702 rev. c | page 12 of 12 pin 1 1.60 bsc 2.80 bsc 1.90 bsc 0.95 bsc 5 12 3 4 0.22 0.08 10 5 0 0.50 0.30 0.15 max seating plane 1.45 max 1.30 1.15 0.90 2.90 bsc 0.60 0.45 0.30 compliant to jedec standards mo-178-aa figure 22. 5-lead small outline transistor package [sot-23] (rj-5) dimensions shown in millimeters ordering guide model package description package option branding adg701brj-500rl7 5-lead small outline transistor package [sot-23] rj-5 s3b adg701brj-reel 5-lead small outline transistor package [sot-23] rj-5 s3b adg701brj-reel7 5-lead small outline transistor package [sot-23] rj-5 s3b adg701brm 8-lead mini small outline package [msop] rm-8 s3b adg701brm-reel 8-lead mini small outline package [msop] rm-8 s3b adg701brm-reel7 8-lead mini small outline package [msop] rm-8 s3b adg701brt-reel 6-lead small outline transistor package [sot-23] rt-6 s3b adg701brt-reel7 6-lead small outline transistor package [sot-23] rt-6 s3b adg701brjz-500rl7 1 5-lead small outline transistor package [sot-23] rj-5 s3b# adg701brjz-reel 1 5-lead small outline transistor package [sot-23] rj-5 s3b# adg701brjz-reel7 1 5-lead small outline transistor package [sot-23] rj-5 s3b# adg701brmz 1 8-lead mini small outline package [msop] rm-8 s0s adg701brmz-reel7 1 8-lead mini small outline package [msop] rm-8 s0s adg701brtz-reel 1 6-lead small outline transistor package [sot-23] rt-6 s3b# adg701brtz-reel7 1 6-lead small outline transistor package [sot-23] rt-6 s3b# adg702brj-500rl7 5-lead small outline transistor package [sot-23] rj-5 s4b adg702brj-reel 5-lead small outline transistor package [sot-23] rj-5 s4b adg702brj-reel7 5-lead small outline transistor package [sot-23] rj-5 s4b adg702brm 8-lead mini small outline package [msop] rm-8 s4b adg702brm-reel 8-lead mini small outline package [msop] rm-8 s4b adg702brm-reel7 8-lead mini small outline package [msop] rm-8 s4b adg702brt-reel 6-lead small outline transistor package [sot-23] rt-6 s4b adg702brt-reel7 6-lead small outline transistor package [sot-23] rt-6 s4b adg702brjz-500rl7 1 5-lead small outline transistor package [sot-23] rj-5 s14 adg702brjz-reel 1 5-lead small outline transistor package [sot-23] rj-5 s14 adg702brjz-reel7 1 5-lead small outline transistor package [sot-23] rj-5 s14 adg702brmz 1 8-lead mini small outline package [msop] rm-8 s14 ADG702BRMZ-REEL7 1 8-lead mini small outline package [msop] rm-8 s14 adg702brtz-reel 1 6-lead small outline transistor package [sot-23] rt-6 s4b# adg702brtz-reel7 1 6-lead small outline transistor package [sot-23] rt-6 s4b# 1 z = pb-free part, # denotes lead-free product, may be top or bottom marked. ?2006 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. c00039C0C7/06(c)

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