*////////////////////////////////////////////////////////////////////// * (C) National Semiconductor, Inc. * Models developed and under copyright by: * National Semiconductor, Inc. *///////////////////////////////////////////////////////////////////// * Legal Notice: This material is intended for free software support. * The file may be copied, and distributed; however, reselling the * material is illegal *//////////////////////////////////////////////////////////////////// * For ordering or technical information on these models, contact: * National Semiconductor's Customer Response Center * 7:00 A.M.--7:00 P.M. U.S. Central Time * (800) 272-9959 * For Applications support, contact the Internet address: * amps-apps@galaxy.nsc.com * ///////////////////////////////////////////////////// * LPC662A Low Power CMOS Dual Operational Amplifier * ///////////////////////////////////////////////////// * * Connections: Non-inverting input * | Inverting input * | | Positive power supply * | | | Negative power supply * | | | | Output * | | | | | * | | | | | .SUBCKT LPC662A/NS 1 2 99 50 28 * CAUTION: SET .OPTIONS GMIN=1E-16 TO CORRECTLY MODEL INPUT BIAS CURRENT. * * Features: * Operates from single supply * Rail-to-rail output swing * Low offset voltage (max) = 3mV * Ultra low input current = 40fA * Slew rate = .11V/uS * Gain-bandwidth product = 350kHz * Low supply current = 43uA/Amplifier * * NOTE: - Model is for single device only and simulated * supply current is 1/2 of total device current. * - Noise is not modeled. * - Asymmetrical gain is not modeled. * CI1 1 50 2P CI2 2 50 2P * 89.2E-3 Hz pole capacitor C3 98 9 178.2N * 604.1 kHz pole capacitor C4 6 5 1.68P * 1.98 MHz pole capacitor C5 98 15 80F * Drain-substrate capacitance C6 50 4 5P * 10 MHz pole capacitor C7 98 11 15.8F DP1 1 99 DA DP2 50 1 DX DP3 2 99 DB DP4 50 2 DX D1 9 8 DX D2 10 9 DX D3 15 20 DX D4 21 15 DX D5 26 24 DX D6 25 27 DX D7 22 99 DX D8 50 22 DX D9 0 14 DX D10 12 0 DX EH 97 98 99 49 1.0 EN 0 96 0 50 1.0 * Input offset voltage--| EOS 7 1 POLY(1) 16 49 3M 1 EP 97 0 99 0 1.0 E1 97 19 99 15 1.0 * Sourcing load +Vs current F1 99 0 VA2 1 * Sinking load -Vs current F2 0 50 VA3 1 F3 13 0 VA1 1 G1 98 9 5 6 0.1 G2 98 11 9 49 1U G3 98 15 11 49 1U * DC CMRR G4 98 16 POLY(2) 1 49 2 49 0 3.54E-8 3.54E-8 I1 99 4 3.678U I2 99 50 37.8U * Load dependent pole L1 22 28 2.06M * CMRR lead L2 16 17 79.2M M1 5 2 4 99 MX M2 6 7 4 99 MX R3 5 50 78.2K R4 6 50 78.2K R5 98 9 1E7 R8 99 49 1.66E6 R9 49 50 1.66E6 R12 98 11 1E6 R13 98 17 1K * -Rout R16 23 24 75 * +Rout R17 23 25 70 * +Isc slope control R18 20 29 144.6K * -Isc slope control R19 21 30 185K R21 98 15 1E6 R22 22 28 4.54K VA1 19 23 0V VA2 14 13 0V VA3 13 12 0V V2 97 8 0.750V V3 10 96 0.742V V4 29 22 0.63V V5 22 30 0.63V V6 26 22 0.63V V7 22 27 0.63V .MODEL DA D (IS=5E-14) .MODEL DB D (IS=4E-14) .MODEL DX D (IS=1E-14) .MODEL MX PMOS (VTO=-2.19 KP=7.0547E-4) .ENDS *$