* MAX4490 MACROMODEL * ---------------------------- * Revision 0. 10/2005 * ---------------------------- * The MAX4490 low cost high slew rate opamp operates from a single +2.7V to 5.5V * Supply, feature ground sensing inputs and rail to rail outputs and are unity * gain stable with capacitive loads upto 300pF. * ---------------------------- * Connections * 1 = Noninverting input of the amplifier * 2 = Negative power supply * 3 = Inverting input of the amplifier * 4 = Amplifier output * 5 = Positive power supply *----------------------------- ********************************** .SUBCKT MAX4490 1 2 3 4 5 XAMP4490 1 2 3 4 5 MAX4490_S .ENDS ********************************** ********************************** .SUBCKT MAX4490_S 17 18 15 42 10 ********************************** *INPUT STAGE VS1 10 11 0V FSUP 18 10 VS1 1 IBIAS 11 12 144.7U *IBIAS 11 12 363.76U M1 13 16 12 12 MOSP M2 14 15 12 12 MOSP VOS 17 16 1.5M RD1 13 18 1K RD2 14 18 1K C1 13 14 4.0P CIN1 16 100 5P CIN2 15 100 5P ************** *INPUT BIAS CURRENT IBIAS1 12 16 50P IBIAS2 12 15 50P ************** *MAXIMUM INPUT COMMON MODE VOLTAGE LIMIT DIL 12 80 DZ RIL 80 82 100 VIL 82 81 1.065V EIL 81 18 10 18 1 ************** *MINIMUM SUPPLY VOLTAGE LIMIT VVL 85 18 2.7V VIS4 85 86 0V RVL 86 87 1K DVL3 87 88 DY EVL 88 18 10 18 1 DVL4 18 12 DY DVL5 12 84 DY FVL 84 18 VIS4 4 ************************************************** *GAIN STAGE GA 25 100 14 13 439.82U RO1 25 100 2.274K GB 26 100 25 100 1 RO2 26 100 316.33K EF 27 100 26 100 1 RLF 27 100 1MEG CC 25 27 6.25P *************** *VOLTAGE LIMITING DP1 26 151 DY EP1 151 153 10 18 0.5 EP3 153 155 27 199 1 HCOMP1 100 155 VIS2 45.0 DP2 152 26 DY EP2 154 152 10 18 0.5 EP4 156 154 199 26 1 HCOMP2 100 156 VIS2 28.4 ************************************************** *CMRR (CMRR DC RESPONSE) GCM 100 25 18 12 78.2N ************************************************** *PSRR (PSRR DC RESPONSE) GPS 100 25 10 18 4.398N ************************************************** **************** *CURRENT LIMITING RO3 27 199 84 D1 30 199 DY D2 199 28 DY D3 29 28 DY D4 30 29 DY ILIM1 28 30 50M 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 0.67M DISUP 10 90 DY RISUP 90 91 14.28K VISUP 91 18 2.5V *************** *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 ************************************************** .MODEL DA D(IS=100E-14 RS=0.5k) .MODEL MOSP PMOS(VTO=-0.7 KP=69.2E-4) .MODEL DX D(IS=100E-14) .MODEL DZ D(N=10M) .MODEL DY D(IS=100E-14 N=0.1M) ************************************************** .ENDS