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<1 cmos, 1.8 v to 5.5 v, dual spst switches adg821/adg822/adg823 rev. a 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 ?2002C2008 analog devices, inc. all rights reserved. features 0.8 maximum on resistance @ 125c 0.3 maximum on resistance flatness @ 125c 1.8 v to 5.5 v single supply 200 ma current carrying capability automotive temperature range: ?40c to +125c rail-to-rail operation 8-lead msop 33 ns switching times typical power consumption: <0.01 w ttl-/cmos-compatible inputs pin-compatible with the adg721 / adg722 / adg723 applications power routing battery-powered systems communication systems data acquisition systems audio and video signal routing cellular phones modems pcmcia cards hard drives relay replacement functional block diagrams adg821 switches shown for a logic 0 input. in1 s1 d1 in2 s2 d2 0 2851-001 adg822 switches shown for a logic 0 input. in1 s1 d1 in2 s2 d2 0 2851-002 figure 1. figure 2. adg823 switches shown for a logic 0 input. in1 s1 d1 in2 s2 d2 02851-003 figure 3. general description the adg821/adg822/adg823 are monolithic cmos single- pole, single-throw (spst) switches. these switches are designed on an advanced submicron process that provides low power dissipation, yet gives high switching speed, low on resistance, and low leakage currents. the adg821/adg822/adg823 are designed to operate from a single 1.8 v to 5.5 v supply, making them ideal for use in battery-powered instruments. each switch of the adg821/adg822/adg823 conducts equally well in both direct ions when on. the adg821/ adg822/adg823 contain two independent spst switches. the adg821 and adg822 differ only in that both switches are normally open and normally closed, respectively. in the adg823, switch 1 is normally open and switch 2 is normally closed. the adg823 exhibits break-before-make switching action. the adg821/adg822/adg823 are available in an 8-lead msop. product highlights 1. very low on resistance: 0.5 typ. 2. on resistance flatness (r flat(on) ): 0.15 typ. 3. automotive temperature range: ?40c to +125c. 4. current carrying capability: 200 ma. 5. low power dissipation. cmos construction ensures low power dissipation. 6. 8-lead msop.
adg821/adg822/adg823 rev. a | page 2 of 12 table of contents features .............................................................................................. 1 applications ....................................................................................... 1 functional block diagrams ............................................................. 1 general description ......................................................................... 1 product highlights ........................................................................... 1 revision history ............................................................................... 2 specifications ..................................................................................... 3 absolute maximum ratings ............................................................ 5 esd caution...................................................................................5 pin configuration and function descriptions ..............................6 typical performance characteristics ..............................................7 test circuits ........................................................................................9 terminology .................................................................................... 11 outline dimensions ....................................................................... 12 ordering guide .......................................................................... 12 revision history 4/08rev. 0 to rev. a updated format .................................................................. universal added table 6 .................................................................................... 6 updated outline dimensions ....................................................... 12 changes to ordering guide .......................................................... 12 8/02revision 0: initial version
adg821/adg822/adg823 rev. a | page 3 of 12 specifications v dd = 5 v 10%, gnd = 0 v; t a = ?40c to +125c, unless otherwise noted. table 1. parameter 25c ?40c to +85c ?40c to +125c 1 unit test conditions/comments analog switch analog signal range 0 v to v dd v on resistance (r on ) 0.5 typ v s = 0 v to v dd , i s = 100 ma, see figure 17 0.6 0.7 0.8 max on resistance match between 0.16 typ v s = 0 v to v dd , i s = 100 ma channels (r on ) 0.2 0.25 0.28 max on resistance flatness (r flat(on) ) 0.15 typ v s = 0 v to v dd , i s = 100 ma 0.23 0.26 0.3 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, see figure 18 0.25 3 25 na max drain off leakage, i d (off ) 0.01 na typ v s = 4.5 v/1 v, v d = 1 v/4.5 v, see figure 18 0.25 3 25 na max channel on leakage, i d , i s (on) 0.01 na typ v s = v d = 1 v, or v s = v d = 4.5 v, see figure 19 0.25 3 25 na max digital inputs input high voltage, v inh 2.0 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 digital input capacitance, c in 4 pf typ dynamic characteristics 2 t on 33 ns typ r l = 50 , c l = 35 pf, v s = 3 v, see figure 20 45 48 52 ns max t off 11 ns typ r l = 50 , c l = 35 pf, v s = 3 v, see figure 20 16 19 21 ns max break-before-make time delay, t bbm 32 ns typ r l = 50 , c l = 35 pf, v s1 = v s2 = 3 v, (adg823 only) 1 ns min see figure 21 charge injection 15 pc typ v s = 2.5 v; r s = 0 , c l = 1 nf, see figure 22 off isolation ?52 db typ r l = 50 , c l = 5 pf, f = 1 mhz, see figure 23 channel-to-channel crosstalk ?82 db typ r l = 50 , c l = 5 pf, f = 1 mhz, see figure 24 bandwidth ?3 db 24 mhz typ r l = 50 , c l = 5 pf, see figure 25 c s (off ) 85 pf typ f = 1 mhz c d (off ) 98 pf typ f = 1 mhz c d , c s (on) 230 pf typ f = 1 mhz power requirements v dd = 5.5 v, digital inputs = 0 v or 5.5 v i dd 0.001 a typ 1.0 2.0 a max 1 on resistance parameters tested with i s = 10 ma. 2 guaranteed by design, not subject to production test.
adg821/adg822/adg823 rev. a | page 4 of 12 v dd = 2.7 v to 3.6 v, gnd = 0 v, t a = ?40c to +125c, unless otherwise noted. table 2. parameter 25c ?40c to +85c ?40c to +125c 1 unit test conditions/comments analog switch analog signal range 0 v to v dd v on resistance (r on ) 0.7 typ v s = 0 v to v dd , i s = 100 ma, see figure 17 1.4 1.5 1.6 max on resistance match between 0.16 typ v s = 0 v to v dd , i s = 100 ma channels (r on ) 0.2 0.25 0.28 max on resistance flatness (r flat(on) ) 0.3 0.33 typ v s = 0 v to v dd , i s = 100 ma leakage currents v dd = 3.6 v source off leakage, i s (off ) 0.01 na typ v s = 3.3 v/1 v, v d = 1 v/3.3 v, see figure 18 0.25 3 15 na max drain off leakage, i d (off ) 0.01 na typ v s = 3.3 v/1 v, v d = 1 v/3.3 v, see figure 18 0.25 3 25 na max channel on leakage, i d , i s (on) 0.01 na typ v s = v d = 1 v, or 3.3 v, see figure 19 0.25 3 25 na max digital inputs input high voltage, v inh 2.0 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 digital input capacitance, c in 4 pf typ dynamic characteristics 2 t on 48 ns typ r l = 50 , c l = 35 pf, v s = 1.5 v, see figure 20 67 74 78 ns max t off 12 ns typ r l = 50 , c l = 35 pf, v s = 1.5 v, see figure 20 18 20 23 ns max break-before-make time delay, t bbm 40 ns typ r l = 50 , c l = 35 pf, v s1 = v s2 = 1.5 v, (adg823 only) 1 ns min see figure 21 charge injection 2 pc typ v s = 1.5 v; r s = 0 , c l = 1 nf, see figure 22 off isolation ?52 db typ r l = 50 , c l = 5 pf, f = 1 mhz, see figure 23 channel-to-channel crosstalk ?82 db typ r l = 50 , c l = 5 pf, f = 1 mhz, see figure 24 bandwidth ?3 db 24 mhz typ r l = 50 , c l = 5 pf, see figure 25 c s (off ) 85 pf typ f = 1 mhz c d (off ) 98 pf typ f = 1 mhz c d , c s (on) 230 pf typ f = 1 mhz power requirements v dd = 3.6 v, digital inputs = 0 v or 3.6 v i dd 0.001 a typ 1.0 2.0 a max 1 on resistance parameters tested with i s = 10 ma. 2 guaranteed by design, not subject to production test.
adg821/adg822/adg823 rev. a | page 5 of 12 absolute maximum ratings t a = 25c, unless otherwise noted. table 3. parameter rating v dd to gnd ?0.3 v to +7 v analog inputs 1 ?0.3 v to v dd + 0.3 v or 30 ma, whichever occurs first digital inputs 1 ?0.3 v to v dd + 0.3 v or 30 ma, whichever occurs first peak current, s or d 400 ma (pulsed at 1 ms, 10% duty cycle maximum) continuous current, s or d 200 ma operating temperature range automotive ?40c to +125c storage temperature range ?65c to +150c junction temperature (t j max) 150c package power dissipation (t j max ? t a )/ ja 8-lead msop thermal impedance ja 206c/w jc 44c/w lead temperature, soldering (10 sec) 300c ir reflow, peak temperature (<20 sec) 235c 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. table 4. truth table for the adg821/adg822 adg821 inx adg822 inx switch x condition 0 1 off 1 0 on table 5. truth table for the adg823 in1 in2 switch s1 switch s2 0 0 off on 0 1 off off 1 0 on on 1 1 on off esd caution
adg821/adg822/adg823 rev. a | page 6 of 12 pin configuration and fu nction descriptions 1 s1 8 v dd 2 d1 7 in1 3 in2 6 d2 4 gnd 5 s2 adg821/ adg822/ adg823 top view (not to scale) 0 2851-004 figure 4. pin configuration table 6. pin function descriptions pin no. mneonic description 1 s1 source terminal. this pin can be an input or output. 2 d1 drain terminal. this pin can be an input or output. 3 in2 logic control input. 4 gnd ground (0 v) reference. 5 s2 source terminal. this pin can be an input or output. 6 d2 drain terminal. this pin can be an input or output. 7 in1 logic control input. 8 v dd most positive power supply potential.
adg821/adg822/adg823 rev. a | page 7 of 12 typical performance characteristics 0.8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 012345 on resistance ( ? ) v d , v s (v) v dd = 3.3v v dd = 3.0v v dd = 2.7v v dd = 4.5v v dd = 5.0v v dd = 5.5v t a = 25c 02851-005 figure 5. on resistance vs. v d , v s 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 01 . 8 1.61.41.21.00.80.60.40.2 on resistance ( ? ) v d , v s (v) t a = 25c v dd = 1.8v 02851-006 figure 6. on resistance vs. v d , v s ; v dd = 1.8 v 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 05 . 0 4.54.03.53.0 2.5 2.01.51.00.5 on resistance ( ? ) v d , v s (v) v dd = 5v +125c +85c +25c ?40c 02851-007 figure 7. on resistance vs. v d , v s for different temperatures, v dd = 5 v 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 03 2.5 2.0 1.5 1.0 0.5 on resistance ( ? ) v d , v s (v) v dd = 3v +125c +85c +25c ?40c . 0 02851-008 figure 8. on resistance vs. v d , v s for different temperatures, v dd = 3 v 8 7 6 5 4 3 2 0 1 ?1 0 120 125 100 80 60 40 20 current (na) temperature (c) v dd = 5v, 3v i s , i d (on) i d (off) i s (off) 02851-009 figure 9. leakage current vs. temperature 200 150 100 50 0 ?50 ?100 ?150 ?200 05 4.54.03.53.0 2.5 2.01.51.00.5 charge injection (pc) v s (v) v dd = 5v v dd = 3v t a = 25c . 0 02851-010 figure 10. charge injection vs. source voltage
adg821/adg822/adg823 rev. a | page 8 of 12 60 50 40 30 20 10 0 ?40 120 10080604020 0 ?20 time (ns) temperature (c) t a = 25c t on t off v dd = 3v v dd = 5v v dd = 3v, 5v 02851-011 figure 11. t on /t off vs. temperature 0 ?70 ?60 ?50 ?40 ?30 ?20 ?10 0.2 100 10 1 attenuation (db) frequency (mhz) v dd = 3v, 5v t a = 25c 02851-012 figure 12. off isol ation vs. frequency 0 ?9 ?7 ?8 ?6 ?5 ?4 ?3 ?2 ?1 0.1 100 10 1 attenuation (db) frequency (mhz) v dd = 3v, 5v t a = 25c 02851-013 figure 13. on response vs. frequency ? 10 ?110 ?100 ?80 ?90 ?70 ?60 ?50 ?40 ?30 ?20 0.1 100 10 1 attenuation (db) frequency (mhz) 02851-014 figure 14. crosstalk vs. frequency 1.8 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 16 5 4 3 2 0 logic threshold voltage (v) v dd (v) v in rising v in falling 02851-015 figure 15. logic threshold voltage vs. supply voltage 0.050 0.045 0.040 0.035 0.030 0.025 0.020 0.015 0.010 0.005 100 10k 1k 20 thd (%) frequency (hz) v s = 5v v p-p = 2v r l = 600 ? 02851-016 figure 16. thd vs. frequency
adg821/adg822/adg823 rev. a | page 9 of 12 test circuits sd v s i ds v1 r on = v1/i ds 0 2851-017 sd v s a a v d i s (off) i d (off) 02851-018 sd a v d i d (on) nc nc = no connect 0 2851-019 figure 17. on resistance figure 18 . off leakage figure 19. on leakage v s in s d gnd r l 50 ? c l 35pf v out v dd 0.1f v dd adg821 adg822 v in v in v out t on t off 50% 50% 90% 90% 50% 50% 02851-020 figure 20. switching times v s2 in1, in2 v in s2 d2 v s1 s1 d1 gnd r l2 50? c l2 35pf v out2 v out1 v dd 0.1f v dd v in v out1 v out2 t bbm t bbm 50% 50% 90% 90% 90% 90% 0v 0v 0v r l1 50 ? c l1 35pf 02851-021 figure 21. break-before-make time delay, t bbm (adg823 only) in v out v in v out v out sw off sw on q inj = c l v out s d v dd v dd v s r s gnd c l 1nf 02851-022 figure 22. charge injection
adg821/adg822/adg823 rev. a | page 10 of 12 v out 50 ? network analyzer r l 50? in v in s d 50? v s off isolation = 20 log v out v s v dd 0.1f v dd gnd 02851-023 figure 23. off isolation channel-to-channel crosstalk = 20 log v out gnd s1 d s2 in v out network analyzer r l 50 ? r 50? 50 ? v s v s v dd 0.1f v dd 02851-024 figure 24. channel-to-channel crosstalk v out 50 ? network analyzer r l 50? in v in s d insertion loss = 20 log v out with switch v out without switch v s v dd 0.1f v dd gnd 02851-025 figure 25. bandwidth
adg821/adg822/adg823 rev. a | page 11 of 12 terminology v dd most positive power supply potential. gnd ground (0 v) reference. i dd positive supply current. s source terminal. may be an input or output. d drain terminal. may be an input or output. in logic control input. r on ohmic resistance between terminal d and terminal s. r on on resistance match between any two channels (that is, r on max ? r on min). 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 , v s analog voltage on terminal d and terminal s. v inl maximum input voltage for logic 0. v inh minimum input voltage for logic 1. i inl (i inh ) input current of the digital input. 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 control input and the output switching on. t off delay between applying the digital control input and the output switching off. t bbm off time or on time measured between the 90% points of both switches, when switching from one address state to another. charge injection charge injection is a measure of the glitch impulse transferred from the digital input to the analog output during switching. crosstalk crosstalk is a measure of unwanted signal that is coupled through from one channel to another as a result of parasitic capacitance. off isolation a measure of unwanted signal coupling through an off switch. bandwidth the frequency at which the output is attenuated by ?3 dbs. on response the frequency response of the on switch. insertion loss the loss due to the on resistance of the switch.
adg821/adg822/adg823 rev. a | page 12 of 12 outline dimensions compliant to jedec standards mo-187-aa 0.80 0.60 0.40 8 0 4 8 1 5 pin 1 0.65 bsc seating plane 0.38 0.22 1.10 max 3.20 3.00 2.80 coplanarity 0.10 0.23 0.08 3.20 3.00 2.80 5.15 4.90 4.65 0.15 0.00 0.95 0.85 0.75 figure 26. 8-lead mini small outline package [msop] (rm-8) dimensions shown in millimeters ordering guide model temperature range package description package option branding adg821brm ?40c to +125c 8-lead mini small outline package [msop] rm-8 sqb ADG821BRM-REEL ?40c to +125c 8-lead mini small outline package [msop] rm-8 sqb adg821brmz 1 ?40c to +125c 8-lead mini small outline package [msop] rm-8 s0p adg821brmz-reel7 1 ?40c to +125c 8-lead mini small outline package [msop] rm-8 s0p adg822brm ?40c to +125c 8-lead mini small outline package [msop] rm-8 srb adg822brm-reel ?40c to +125c 8-lead mini small outline package [msop] rm-8 srb adg822brm-reel7 ?40c to +125c 8-lead mini small outline package [msop] rm-8 srb adg822brmz 1 ?40c to +125c 8-lead mini small outline package [msop] rm-8 s1j adg822brmz-reel7 1 ?40c to +125c 8-lead mini small outline package [msop] rm-8 s1j adg823brm ?40c to +125c 8-lead mini small outline package [msop] rm-8 ssb adg823brm-reel ?40c to +125c 8-lead mini small outline package [msop] rm-8 ssb adg823brmz 1 ?40c to +125c 8-lead mini small outline package [msop] rm-8 ssb# adg823brmz-reel7 1 ?40c to +125c 8-lead mini small outline package [msop] rm-8 ssb# 1 z = rohs compliant part, # denotes rohs co mpliant product may be top or bottom marked. ?2002C2008 analog devices, inc. all rights reserved. trademarks and registered trademarks are the prop erty of their respective owners. d02851-0-4/08(a)

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