* AD624 SPICE Macro-model 9/91, Rev. A * ARG / PMI * * Copyright 1990 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 * * rg1 * | inverting input * | | non-inverting input * | | | negative supply * | | | | reference (ground usually) * | | | | | output * | | | | | | positive supply * | | | | | | | rg2 * | | | | | | | | sense * | | | | | | | | | .SUBCKT AD624 5 1 2 50 17 32 99 8 11 42 41 40 * | | | * | | G=500 * | G=200 * G=100 * * input stage * Q1 4 3 5 QX Q2 7 6 8 QX E1 9 11 16 4 50E3 E2 10 11 16 7 50E3 I1 99 4 50E-6 I2 99 7 50E-6 I3 5 50 50E-6 I4 8 50 50E-6 IOS 0 35 6.667E-9 R1 1 3 50 R2 2 35 50 R3 5 9 20E3 R4 8 10 20E3 VB 99 16 1 RB 99 16 1E6 C1 4 9 12E-12 C2 7 10 12E-12 D1 5 3 DX D2 8 6 DX VIOS 6 35 15E-6 EOOS 34 10 POLY(1) 22 26 1E-3 1 * * output resistor network * R7 9 36 1E3 R8 36 12 9E3 R9 11 12 10E3 R10 34 37 1E3 R11 13 37 9E3 R12 13 17 10E3 R30 5 40 80.2 R31 40 41 124 R32 41 42 225.3 R33 40 42 4445 V4 99 38 2.28 V5 39 50 2.28 D11 36 38 DX D12 39 36 DX D13 37 38 DX D14 39 37 DX * * output amplifier * R5 14 50 1.989E3 R6 15 50 1.989E3 I5 99 18 200E-6 J1 14 12 18 JX J2 15 13 18 JX C3 14 15 41E-12 * * common mode gain stage * EREF 98 0 26 0 1 E3 21 20 1 26 0.5 E4 20 98 2 26 0.5 R15 21 22 10E3 R16 22 98 1 C4 21 22 159E-9 * * gain stage * R17 23 98 198.9E6 C5 23 98 40E-12 G1 98 23 14 15 502.66E-6 V2 99 24 2.986 V3 25 50 2.986 D3 23 24 DX D4 25 23 DX R26 26 99 75E3 R27 26 50 75E3 * * output stage * ISY 99 50 3E-3 D5 23 28 DX D6 29 23 DX R28 27 99 60 R29 27 50 60 L1 27 32 1.0E-8 G17 30 50 23 27 16.667E-3 G18 31 50 27 23 16.667E-3 G19 27 99 99 23 16.667E-3 G20 50 27 23 50 16.667E-3 V6 28 27 -.013 V7 27 29 .707 D7 99 30 DX D8 99 31 DX D9 50 30 DY D10 50 31 DY * * non-linear models * .MODEL JX PJF (BETA=631.66E-6 VTO=-2.0 IS=1E-16) .MODEL DX D (IS=1E-15) .MODEL DY D (IS=1E-15 BV=50) .MODEL QX NPN (IS=1E-16 BF=5000 RE=50) .ENDS AD624