AD620仪表运放

1、AD620RGIN+INVSRG! !) : 1 10,000*! )2.3 V 18 V*! 3 ! 8 DIP SOIC ! , 1.3 mA )B * ! : 50 V( ) ! : 0.6 V/C( ) ! : 1.0 nA( ) ! : 100 dB( ,G = 10) ! : 9 nV/Hz (1 kHz) 0.28 V )0.1 Hz 10 Hz* ! : 120 kHz(G = 100) 0.01% : 15 s+VSOUTPUT00775-0-001TOP VIEWREF1. 8 PDIP (N)CERDIP (Q) SOIC (R)AD620 1 10,000 AD620

2、8 SOIC DIP ) 1.3 mA* ) * AD620 ) 40 ppm* ) 50 V* ) 0.6 V/C* AD620 ECG Supereta 1.0 nA AD620 1 kHz 9 nV/Hz 0.1 Hz 10 Hz 0.28 V 0.1pA/Hz AD620 0.01% 15 s ECG 30,000TOTAL ERROR, PPM OF FULL SCALE25,00020,000RTI VOLTAGE NOISE(0.1 10Hz) (V p-p)15,00010,0005,00000775-0-002SUPPLY CURRENT (mA)SOURCE RESISTA

3、NCE ()00775-0-0032. AD620Rev. GInformation 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 subj

4、ect 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.3.One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700

5、Fax: 781.326.8703 2004 Analog Devices, Inc. All rights reserved.ADI ADI ADI AD620. 3 . 5 ESD . 5 . 7 . 13! ! . 16 (RF) . 16 . 17 . 17 . 18. 16 . 16 . 16. 19!. 202004 12 F G2003 7 “ ” E F. “ ” !. 1 “ ” . 1 “ ” . 3 . 4 4 6 . 6 15 . 7 33 . 10 34 35 . 10 37 . 10 3 . 13 41 42 . 14 43 . 15 44 . 17 “ ” . 1

6、5 9 . 15 “ )RF* ” . 15 “ ” . 17 “ ” AD620CHIPS . 19 “ ” !. 1 “ ” . 2 “ ” AD620CHIPS . 4 . 4 TPC 13 . 5 TPC 12 . 6 TPC 30 . 9 TPC 31 TPC 32 . 10 4 . 10 I . 11 6 7 . 12 8 . 13 “ ” . 13 9 . 13 “RF ” . 14 “ ” . 15“ ” . 16Rev. G | Page 2 of 20AD62025CVS = 15 VRL = 2 k 12G = 1G = 10G = 100G = 1000G = 1100

7、0G = 1100VOSI(TC)VOSO(TC)(PSR)G = 1G = 10G = 100G = 1000(TC)(TC)AD620S1 G = 1 + (49.4 k/RG) 1 10,000 1 10,000 1 10,000 VOUT = 10 V 0.03 0.10 0.01 0.02 0.03 0.10 % 0.15 0.30 0.10 0.15 0.15 0.30 % 0.15 0.30 0.10 0.15 0.15 0.30 % 0.40 0.70 0.35 0.50 0.40 0.70 % VOUT = 10 V +10 V RL = 10 k 10 40 10 40 1

8、0 40 ppm RL = 2 k 10 95 10 95 10 95 ppm G = 1 10 10 10 ppm/C 2 1 50 50 50 ppm/C ( = VOSI + VOSO/G)VS = 5 V 30 125 15 50 30 125 V 15 V VS = 5 V 185 85 225 V 15 V VS = 5 V 0.3 1.0 0.1 0.6 0.3 1.0 V/C 15 V VS = 15 V 400 1000 200 500 400 1000 V VS = 5 V 1500 750 1500 V VS = 5 V 2000 1000 2000 V 15 V VS

9、= 5 V 5.0 15 2.5 7.0 5.0 15 V/C 15 V VS = 2.3 V 18 V 80 100 80 100 80 100 dB 95 120 100 120 95 120 dB 110 140 120 140 110 140 dB 110 140 120 140 110 140 dB 0.5 0.5 0.5 nA nA 3.0 3.0 8.0 pA/C 0.3 0.3 0.3 nA nA 1.5 1.5 8.0 pA/C 10|2 10|2 10|2 G_pF 10|2 10|2 10|2 G_pF +VS 1.2 VS + 1.9 +VS 1.2 VS + 1.9

10、+VS 1.2 V VS = 2.3 V VS + 1.9 5 V S + 2.1 +VS 1.3 VS + 2.1 +VS 1.3 VS + 2.1 +VS 1.3 V VS = 5 V VS + 1.9 +VS 1.4 VS + 1.9 +VS 1.4 VS + 1.9 +VS 1.4 V 18 V S + 2.1 +VS 1.4 VS + 2.1 +VS + 2.1 VS + 2.3 +VS 1.4 VRev. G | Page 3 of 20AD620AD620S1883B ADI RG 3 G = 14 PSR 12Rev. G | Page 4 of 20AD62018 V650

11、mWVS 2 1 ( ) 25 V(Q)65C +150C(N, R)65C +125CAD620 (A, B)40C +85CAD620 (S)55C +125C(10 )300C1 8 CERDIP JA = 95C88 SOIC JA = 110CJA = 155CESD !ESD( * 4000 V ESD ESD Rev. G | Page 5 of 204. ) * Rev. G | Page 6 of 20 400-0-57700AD620AD620(25CVS = 15 VRL = 2 k , )50402.01.5INPUT BIAS CURRENT (nA)PERCENTA

12、GE OF UNITSI+IB30201000775-0-00575INPUT OFFSET VOLTAGE (V)252575TEMPERATURE (C)12517500775-0-00800775-0-00900775-0-0105. 5040PERCENTAGE OF UNITS8.CHANGE IN OFFSET VOLTAGE (V)00775-0-00630201012006000600120001INPUT BIAS CURRENT (pA)23WARM-UP TIME (Minutes)456. 5040PERCENTAGE OF UNITS9. VOLTAGE NOISE

13、(nVHz)30201000775-0-INPUT OFFSET CURRENT (pA)FREQUENCY (Hz)7. 10. (G = 11000)Rev. G | Page 7 of 20AD6201000CURRENT NOISE (fA/Hz)10000775-0-01410110100 FREQUENCY (Hz)100000775-0-01111. 14. 0.1 Hz 10 Hz (5 pA/ )100,000TOTAL DRIFT FROM 25C TO 85C, RTI (V)RTINOISE (2.0V/DIV)10,000FET INPUTIN-AMP1000AD62

14、0A10000775-0-012TIME (1 SEC/DIV)101k10k100k1MSOURCE RESISTANCE ()10M00775-0-01500775-0-01612. 0.1 Hz 10 Hz RTI(G = 1) 15.160 140 120100RTI NOISE (0.1V/DIV)CMR (dB)00775-0-013TIME (1 SEC/DIV)1101001kFREQUENCY (Hz)10k100k1M13. 0.1 Hz 10 Hz RTI(G = 1000) 16. CMR (RTI 1 k )Rev. G | Page 8 of 20PSR (dB)A

15、D6203530OUTPUT VOLTAGE (V p-p)2520151051008060402000775-0-017FREQUENCY (Hz)00775-0-0201101001kFREQUENCY (Hz)10k100k1M17. PSR (RTIG = 11000)20.+VSINPUT VOLTAGE LIMIT (V)(REFERRED TO SUPPLY VOLTAGES)00775-0-0181008000775-6040201101001kFREQUENCY (Hz)10k100k1MVSSUPPLY VOLTAGE Volts18. PSR (RTIG = 11000)

16、100021. (G = 1)+VSOUTPUT VOLTAGE SWING (V)(REFERRED TO SUPPLY VOLTAGES)100GAIN(V/V)1000775-0100775-0-0191k10k100k FREQUENCY (Hz)1M10MVS051015SUPPLY VOLTAGE Volts2019. 22. (G = 10)Rev. G | Page 9 of 20$30OUTPUT VOLTAGE SWING (V p-p)2000775-0-0261001kLOAD RESISTANCE ()10k00775-0-02323. 26. (G = 100.5

17、mV = 0.01%)00775-0-02400775-0-02724. (G = 10.5 mV = 0.01%)27. (G = 10RL = 2 kCL = 100 pF)00775-0-02500775-0-03025. (G = 1RL = 2 kCL = 100 pF)28. (G = 1000.5 mV = 0.01%)Rev. G | Page 10 of 2020AD62015SETTLING TIME (s)TO 0.01%TO 0.1%1000775-0-02950510OUTPUT STEP SIZE (V)152000775-0-03229. (G = 100RL =

18、 2 kCL = 100 pF)32. (G = 1)1000SETTLING TIME(s)1001000775-0-03010GAIN100100030. (G = 10000.5 mV = 0.01%) 33. 0.01% ( 10 V)00775-0-03100775-0-03431. (G = 1000RL= 2 kCL = 100 pF) 34. (G = 1RL = 10 k10 V = 1 ppm)Rev. G | Page 11 of 2000775-0-033AD6201k00775-0-035*ALL RESISTORS 1% TOLERANCE00 35. (G = 1

19、00RL = 10 k100 V = 10 ppm)37.00775-0-03636. (G = 1000RL = 10 k1 mV = 100 ppm)Rev. G | Page 12 of 20AD620Q1 Q2 ( 38) Supereta 10 Q1-A1-R1 Q2-A2-R2 Q1 Q2 RG A1/A2 G = (R1 + R2)/RG + 1 A3 REF RG RG (a) (b) ( C1C2 ) (c) 9 nV/Hz R1 R2 24.7 k REFS00775-0-03838. AD620AD620 (G = 100 0.15%) G=49.4kRGG1+1RG=:

20、AD620 “ ” 10 39 100 40C +85C 20 mV 3 Rev. G | Page 13 of 20AD620AD620 / 14 OP07 2 00775-0-039PRECISION BRIDGE TRANSDUCER00775-0-041SUPPLY CURRENT = 1.3mA MAX00775-0-040AD620A MONOLITHICINSTRUMENTATIONAMPLIFIER, G = 100HOMEBREW IN-AMP, G = 100*0.02% RESISTOR MATCH, 3ppm/C TRACKING*DISCRETE 1% RESISTO

21、R, 100ppm/C TRACKING SUPPLY CURRENT = 15mA MAX3.(TA = 25C) V V nACMR, dB85Cppm/CV/C V/C ppm0.1 Hz 10 Hz ( V G = 100, VS = 15 V.( / )39.AD620125 V/20 mV1000 V/100 mV/20 mV 2 nA 350 /20 mV110 dB(3.16 ppm) 5 V/20 mV(50 ppm + 10 ppm) 60C 1 V/C 60C/20 mV15 V/C 60C/100 mV/20 mV40 ppm28 V p-p/20 mV“ ”(150

22、V 2)/20 mV (150 V 2)/100)/20 mV (6 nA 350 )/20 mV(0.02% Match 5 V)/20 mV/100100 ppm/C Track 60C (2.5 V/C 2 60C)/20 mV(2.5 V/C 2 60C)/100 mV/20 mV40 ppm(0.38 V p-p 2)/20 mV ppmAD6206,250 10,607 500 150 18 53 791 5003,600 6,000 3,000 10,607 450 15040 40 14 27Rev. G | Page 14 of 20AD62040. 5 VAD620 40

23、3 k 5 V 1.7 mA AD620 3.8 mA AD620 ECGAD620 1 M ECG ) 41*AD620 8 DIP SOIC AD620 C1 41. ECGRev. G | Page 15 of 20AD620V-IAD620 ) 42* (CMR) AD620 VX R1 VIN+V00775-0-044AD620 G VOS (RTI) = + ( /G) (RTO) =( G)+ 2 V (CMR) 42. ( 1.8 mA 3 V)AD620 RG 1 8 AD620 0.1% 1% 4 RG G = 1RG (RG = ) RGAD620 400 15 V 60

24、 mA 6 mA (IIN VIN/400 ) ) FD333 * )RF* R-C 43 FilterFreqDIFF=FilterFreqCM=12R(2CD+CC)RG= RG RG TC) 10 ppm/C* 4.12RCCCD 10CCCD CC R CC AD620 CMRR) * CMRR- CCCD CD:CC CC Rev. G | Page 16 of 20AD620VOUT00775-0-04643. RF44. (CMR) AD620 CMR CMR CMR 44 45 “ ”(bootstrapping) OUT00775-0-04700775-0-04845. AD

25、620 REF “ ” ) 46* PC ADC 46 DIGITALDATAOUTPUT46. Rev. G | Page 17 of 20AD620 “ ” 47 48 49 “ ”)ADI *TO POWERSUPPLYGROUND00775-0-05048.47. 49.Rev. G | Page 18 of 20AD6200.060 (1.52)0.045 (1.14)BSC0.325 (8.26)0.310 (7.87)45MAXPLANE0.17 (0.0067)COMPLIANT TO JEDEC STANDARDS MS-012AACONTROLLING DIMENSIONS

26、 ARE IN MILLIMETERS; INCH DIMENSIONS(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FORREFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGNCOMPLIANT TO JEDEC STANDARDS MS-001-BACONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FORREFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.CORNER LEADS MAY BE CONFIGURED AS WHOLE