* OP-221G SPICE Macro-model 9/91, Rev. A * JCB / PMI * * This version of the OP-221 model simulates the worst case * parameters of the 'G' grade. The worst case parameters * used correspond to those in the data sheet. * * Copyright 1991 by Analog Devices, Inc. * * Refer to "README.DOC" file for License Statement. Use of this model * indicates your acceptance with the terms and provisions in the License Statement. * * Node assignments * non-inverting input * | inverting input * | | positive supply * | | | negative supply * | | | | output * | | | | | .SUBCKT OP-221G 1 2 99 50 31 * * INPUT STAGE & POLE AT 1.9 MEGHZ * R1 2 3 5E11 R2 1 3 5E11 R3 5 50 5160 R4 6 50 5160 CIN 1 2 2E-12 C2 5 6 8.12E-12 I1 99 4 10E-6 IOS 1 2 3.5E-9 EOS 9 1 POLY(1) 24 27 500E-6 1 Q1 5 2 4 QX Q2 6 9 4 QX * EREF 98 0 27 0 1 * * FIRST GAIN STAGE * R5 10 98 1E6 G1 98 10 5 6 39E-6 D1 10 11 DX D2 12 10 DX E1 99 11 POLY(1) 99 27 -1.4 1 E2 12 50 POLY(1) 27 50 -1.4 1 * * GAIN STAGE & DOMINANT POLE AT 0.78 HZ * R7 13 98 4.11E9 C3 13 98 50E-12 G2 98 13 10 27 5E-6 V1 99 14 1.55 V2 15 50 1.4 D3 13 14 DX D4 15 13 DX * * POLE AT 3.0 MEGHZ * R8 16 98 1E6 C5 16 98 53.1E-15 G3 98 16 13 27 1E-6 * * POLE AT 3.0 MEGHZ * R9 17 98 1E6 C7 17 98 53.1E-15 G10 98 17 16 27 1E-6 * * COMMON-MODE GAIN NETWORK WITH ZERO AT 178 HZ * R10 24 98 1 R11 23 24 1E6 C4 23 24 0.895E-9 E4 98 23 3 27 177.8 * * POLE AT 3.0 MEGHZ * R12 25 98 1E6 C6 25 98 53.1E-15 G9 98 25 17 27 1E-6 * * OUTPUT STAGE * ISY 99 50 340E-6 R13 27 99 150E3 R14 27 50 150E3 R15 30 99 450 R16 30 50 450 L1 30 31 1E-8 G4 28 50 25 30 2.22E-3 G5 29 50 30 25 2.22E-3 G6 30 99 99 25 2.22E-3 G7 50 30 25 50 2.22E-3 D5 99 28 DX D6 99 29 DX D7 50 28 DY D8 50 29 DY D9 25 33 DX V3 33 30 1.6 D10 32 25 DX V4 30 32 1.6 * * MODELS USED * .MODEL QX PNP(BF=42.9) .MODEL DX D(IS=1E-15) .MODEL DY D(IS=1E-15 BV=50) .ENDS OP-221G