* MAX4037 MACROMODEL * ---------------------------- * Revision 0. 10/2005 * ---------------------------- * The MAX4037 ultra low supply current opamps operate from a single +1.4 to * +3.6V supply and feature a 1.232V 0.5% reference and Rail-to-Rail output. * ---------------------------- * Connections * 1 = OUT * 2 = VSS * 3 = IN+ * 4 = IN- * 5 = REF * 6 = VDD *----------------------------- *Note: Output stage crossover distortion is not modeled. ********************************** .SUBCKT MAX4037 1 2 3 4 5 6 XAMP4037 1 2 3 4 5 6 MAX4037_S .ENDS ********************************** ********************************** .SUBCKT MAX4037_S 42 18 17 15 31 10 ********************************** * 10 = VDD * 18 = VSS * 17 = IN+ * 15 = IN- * 31 = REF * 42 = OUT ************* *INPUT STAGE VS1 10 11 0V FSUP 18 10 VS1 1 IBIAS 11 12 1.453U M1 13 16 12 12 MOSP M2 14 15 12 12 MOSP VOS 17 A16 0.2M ECMPSRR A16 16 RA 100 1 RD1 13 18 108.5K RD2 14 18 108.5K C1 13 14 1.659P ************** *INPUT BIAS CURRENT IBIAS1 12 16 1P IBIAS2 12 15 1P ************************************************** *GAIN STAGE GA1 100 A1 14 13 10U RP1 A1 100 100K CA1 A1 100 530P GA2 100 A2 A1 100 10U RP2 A2 100 100K CA2 A2 100 10P ******** GA 25 100 A2 100 439.82U RO1 25 100 2.274K GB 26 100 25 100 1 RO2 26 100 251.2K EF 27 100 26 100 1 RLF 27 100 1MEG CC 25 A27 17.34N RZ1 A27 27 5.25K *************** *VOLTAGE LIMITING DP1 26 151 DY EP1 151 153 10 18 0.5 EP3 153 155 27 199 1 HCOMP1 100 155 VIS2 84.75 DP2 152 26 DY EP2 154 152 10 18 0.5 EP4 156 154 199 26 1 HCOMP2 100 156 VIS2 84.75 ************************************************** *CMRR (CMRR DC RESPONSE) RA1 RA 100 1 GCM 100 RA 18 12 316.2U ************************************************** *PSRR (PSRR DC RESPONSE) GPS 100 RA 10 18 63.1U ************************************************** **************** *CURRENT LIMITING RO3 27 199 123 D1 30 199 DY D2 199 28 DY D3 29 28 DY D4 30 29 DY ILIM1 28 30 13M RILIM 28 30 1MEG ************************************************** VIS2 29 42 0V ************************************************** *INTERNAL GND AT VDD/2 EG1 100 18 10 18 0.5 ************************************************** *SUPPLY CURRENT MODEL *STANDBY CURRENT ISUP 10 18 0.8U DISUP 10 90 DY RISUP 90 91 22MEG VISUP 91 18 1.4V *************** *LOAD CURRENT DSUP 18 10 DX FIS1 100 60 VIS2 1 D17 100 60 DX D18 60 61 DX VIS3 100 61 0V FSUP1 18 10 VIS3 1 ************** *MAXIMUM INPUT COMMON MODE VOLTAGE LIMIT DIL 12 80 DZ RIL 80 82 100 VIL 82 81 0.4V EIL 81 18 10 18 1 ************** *MINIMUM SUPPLY VOLTAGE LIMIT VVL 85 18 1.4V VIS4 85 86 0V RVL 86 87 30K DVL3 87 88 DY EVL 88 18 10 18 1 DVL4 18 12 DY DVL5 12 84 DY FVL 84 18 VIS4 4 ************** *REFERENCE IR1 100 R1 10U RR1 R1 100 123.2K DR1 R1 R2 DY ER1 R2 100 10 18 685M VR2 R7 18 3.0V ER2 R3 18 R1 100 1 ER3 R4 R3 10 R7 3.7M RR2 R5 R4 18.48 DR2 R5 R6 DY VR1 R6 31 0V RR3 31 R5 73.92 ISUP2 10 18 1.1U FR1 10 18 VR1 1 ************************************************** .MODEL DA D(IS=100E-14 RS=0.5k) .MODEL MOSP PMOS(VTO=-0.7 KP=58.2U) .MODEL DX D(IS=100E-14) .MODEL DZ D(N=10M) .MODEL DY D(IS=100E-14 N=0.1M) ************************************************** .ENDS