* MAX4196MACROMODEL * ------------------------------ * Revision 0, 1/2004 * ------------------------------ * The MAX4196 is a fixed gain(10) precision instrumentation amplifier that combines * Rail-to-Rail single-supply operation, outstanding precision specifications, * high gain bandwidth and a shutdown feature. * ------------------------------ * Connections * 1 = REF * 2 = IN- * 3 = IN+ * 4 = VEE * 5 = FB * 6 = OUT * 7 = VCC * 8 = SHDN\ ******************************************** .SUBCKT MAX4196 1 2 3 4 5 6 7 8 XAMP1 1 2 3 4 5 6 7 8 MAX4196_S .ENDS ******************************************** ******************************************** .SUBCKT MAX4196_S 30 B16 A16 18 52 28 10 53 * 10 = VDD * 18 = VSS * 16A = IN+ * 16B = IN- * 25 = OUT * 30 = REF * 15A = RG+ * 15B = RG- ***************** *INPUT STAGE A VS1A 10 A11 0V GBIASA A11 A12 59 20 14.9U M1A A13 A17 A12 A11 MOSFET M2A A14 A15 A12 A11 MOSFET *INPUT BIAS CURRENT RIB1A A12 A17 38.57MEG RIB2A A12 A15 38.57MEG CAIN1 A17 20 4P CAIN2 A15 20 4P CAIN3 A17 A15 1P DBIASA 18 A12 DA RD1A A13 18 1K RD2A A14 18 1K C1A A13 A36 150P RZA A36 A14 350 *INPUT OFFSET VOSA A17 A16 37.5U *INPUT IMPEDENCE RCM1A A17 20 1G RCM2A A15 20 1G RDM1A A17 A15 1G *MAXIMUM INPUT COMMON MODE RCMA A12 A42 3.2K DCMA A42 A41 DA VCMA A40 A41 870M ECMA A40 A18 10 18 1 FSUPA 18 10 VS1A 1 ****** *INPUT STAGE B VS1B 10 B11 0V GBIASB B11 B12 59 20 14.9U M1B B13 B17 B12 B11 MOSFET M2B B14 B15 B12 B11 MOSFET *INPUT BIAS CURRENT RIB1B B12 B17 46.294MEG RIB2B B12 B15 46.294MEG CBIN1 B17 20 4P CBIN2 B15 20 4P CBIN3 B17 B15 1P DBIASB 18 B12 DA RD1B B13 18 1K RD2B B14 18 1K C1B B13 B36 150P RZB B36 B14 350 *INPUT OFFSET VOSB B17 B16 -37.5U *INPUT IMPEDENCE RCM1B B17 20 1G RCM2B B15 20 1G RDM1B B17 B15 1G *MAXIMUM INPUT COMMON MODE RCMB B12 B42 3.2K DCMB B42 B41 DA VCMB B40 B41 870M ECMB B40 B18 10 18 1 FSUPB 18 10 VS1B 1 ****** GPA 20 A35 A14 A13 1M RPA 20 A35 1K ****** GPB 20 B35 B14 B13 1M RPB 20 B35 1K ****** *INTERNAL FEEDBACK RFA A15 A23 25K RFB B15 B23 25K RF1 A15 B15 5.55556K ****** *INTERNAL GROUND EG1 20 18 10 18 0.5 ****** *GAIN STAGE A GAA A21 20 A35 20 10M RO1A A21 20 1K GBA A22 20 A21 20 1 RO2A A22 20 100K EFA A23 20 POLY(2) A22 20 59 20 0 0 0 0 1 RLFA A23 20 10MEG CCA A21 A23 4.966N *VOLTAGE LIMITS EL1A A24 20 10 18 0.5 EL2A 20 A25 10 18 0.5 DL1A A22 A24 DA DL2A A25 A22 DA ****** *GAIN STAGE B GAB B21 20 B35 20 10M RO1B B21 20 1K GBB B22 20 B21 20 1 RO2B B22 20 100K EFB B23 20 POLY(2) B22 20 59 20 0 0 0 0 1 RLFB B23 20 10MEG CCB B21 B23 4.966N *VOLTAGE LIMITS EL1B B24 20 10 18 0.5 EL2B 20 B25 10 18 0.5 DL1B B22 B24 DA DL2B B25 B22 DA ***************** *OUTPUT STAGE. DIFF AMP ESUP 11 18 10 18 1 GBIAS 11 12 59 20 31.51U M1 13 17 12 11 MOSFET M2 14 15 12 11 MOSFET ECMRR 17 16 40 20 1 RD1 13 18 1K RD2 14 18 1K RIN1 B23 16 25K RIN2 A23 15 25K GA 21 20 13 14 10M RO1 21 20 1K GB 22 20 21 20 1 RO2 22 20 100K EF 23 20 POLY(2) 22 20 59 20 0 0 0 0 1 RLF 23 20 10MEG CC 21 23 500P ************************ *CMRR RCMRR2 40 20 1 GCMRR 20 40 12 18 17.78U ************************ *PSRR GPSRR 20 40 10 18 1U ************************ *SUPPLY CURRENT AND LOAD CURRENT GSUP1 10 18 59 20 85U ISUP 10 18 8U ******* FSUP2 20 45 VIS1 1 DSUP2 45 46 DB DSUP3 20 45 DB VIS3 46 20 0V FSUP3 10 18 VIS3 1 ************************ *OUTPUT VOLTAGE LIMITING DL1 22 34 DA VOFF1 34 33 5M HCOMP1 32 33 VIS1 182 EP1 32 31 23 25 1 EL1 31 20 10 18 0.5 **** DL2 37 22 DA VOFF2 36 37 5M HCOMP2 35 36 VIS1 182 EP2 35 38 23 25 1 EL2 20 38 10 18 0.5 ************************ RO3 23 25 10 VIS1 25 29 0V *FEEDBACK ROF1 52 16 25K ROF2 15 30 25K *SHORT CIRCUIT CURRENT GSC 26 27 59 20 4.5M ILK 26 27 1U CSHUNT 26 27 50F DSC1 29 26 DA DSC2 28 26 DA DSC3 27 29 DA DSC4 27 28 DA ************************ *SHUTDOWN LOGIC ISH 53 18 0.1U ESH1 54 20 53 18 1 DSH1 54 55 DA RSH1 55 56 1K VSH1 57 56 1.5 EHYST 58 57 59 20 1.1 ESH2 58 20 10 18 1 FSH 20 59 VSH1 -1 RSH2 59 20 10K DSH2 59 60 DA CSH 59 20 0.3N VSH2 60 20 1V ************************************************** .MODEL MOSFET PMOS(VTO=-0.2 KP=67.4E-3) .MODEL MOSFETN NMOS(VTO=5 KP=88E-2) .MODEL MOSFETP PMOS(VTO=-5 KP=88E-2) .MODEL DA D(N=0.1M) .MODEL DX D(IS=100E-14 RS=0.5k) .MODEL DB D(IS=100E-14) ************************************************** .ENDS * Copyright (c) 2003-2012 Maxim Integrated Products. All Rights Reserved.