* AD8512 SPICE Macro-model * SB, ADSiV apps, 04/2002 * * This model simulates typical values * for the B grade AD8512 * Vsy=±15V, T=25°C * Copyright 2002 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 AD8512 1 2 99 50 30 * * INPUT STAGE * R3 5 50 3.385E3 R4 6 50 3.385E3 CIN 1 2 5.5E-12 I1 99 4 2.954E-4 V10 4 55 DC 4 D10 55 99 DX IOS 1 2 1.75E-12 EOS 60 1 POLY(2) (17, 24) (73, 98) 80E-6 1 1 EN 7 60 42 0 1 GN1 0 1 45 0 1E-6 GN2 0 2 48 0 1E-6 J1 5 2 4 JX J2 6 7 4 JX GB1 2 50 POLY(3) (4, 2) (5, 2) (50, 2) 1E-12 1E-12 1E-12 GB2 7 50 POLY(3) (4, 7) (6, 7) (50, 7) 1E-12 1E-12 1E-12 * EREF 98 0 24 0 1 * * VOLTAGE NOISE GENERATOR * VN1 41 0 DC 2 DN1 41 42 DEN DN2 42 43 DEN VN2 0 43 DC 2 * * CURRENT NOISE GENERATOR * VN3 44 0 DC 2 DN3 44 45 DIN DN4 45 46 DIN VN4 0 46 DC 2 * * CURRENT NOISE GENERATOR * VN5 47 0 DC 2 DN5 47 48 DIN DN6 48 49 DIN VN6 0 49 DC 2 * * SECOND STAGE & POLE AT 50 Hz * R5 9 98 8.16E4 C3 9 98 39E-9 G1 98 9 5 6 7.8E-1 V2 99 8 1.8 V3 10 50 1.8 D1 9 8 DX D2 10 9 DX * * COMMON-MODE GAIN NETWORK WITH ZERO AT 2.4kHZ * R11 16 17 1E6 C8 16 17 6.695E-11 R12 17 98 1 E3 16 98 POLY(2) 1 (98, 2) (98, 0) 1.99 1.99 * PSRR WITH ZERO AT 50Hz * EPSY 72 98 POLY(1) (99,50) 0 1 CPS3 72 73 1E-9 RPS3 72 73 316.2E+6 RPS4 73 98 1 * * POLE AT 11.8 MHZ * R13 18 98 1E3 C9 18 98 12.5E-12 G5 98 18 9 24 1E-3 * * OUTPUT STAGE * R14 24 99 500E3 R15 24 50 500E3 CF 24 0 1E-6 ISY 99 50 -2.2E-3 R16 29 99 100 R17 29 50 100 L1 29 30 1E-8 G6 27 50 18 29 9.09E-3 G7 28 50 29 18 9.09E-3 G8 29 99 99 18 1E-2 G9 50 29 18 50 1E-2 V4 25 29 0.675 V5 29 26 0.675 D3 18 25 DX D4 26 18 DX D5 99 27 DX D6 99 28 DX D7 50 27 DY D8 50 28 DY F1 29 0 V4 1 F2 0 29 V5 1 * * MODELS USED * .MODEL JX PJF(BETA=1.4E-3 VTO=-1.00 IS=75E-12 RD=0 + RS=0 CGD=1E-12 CGS=1E-12) .MODEL DX D(IS=1E-15 RS=0 CJO=1E-12) .MODEL DY D(IS=1E-15 BV=50 RS=10 CJO=1E-12) .MODEL DEN D(IS=1E-12, RS=3878, KF=1.08E-16, AF=1) .MODEL DIN D(IS=1E-12, RS=19.3E-6, KF=4.28E-15, AF=1) .ENDS AD8512 *$