* AD587J SPICE Macromodel 11/93, Rev. A * AAG / PMI * * This version of the AD587 voltage reference model simulates the worst case * parameters of the 'J' grade. The worst case parameters used correspond * to those parameters in the data sheet. * * Copyright 1993 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 NUMBERS * VIN * | GND * | | TRIM * | | | VOUT * | | | | NOISE REDUCTION * | | | | | .SUBCKT AD587J 2 4 5 6 8 * * BURIED ZENER REFERENCE * I1 4 50 DC 6.9923E-3 R1 50 4 1E3 TC=20E-6 EN 10 50 41 0 1 G1 4 10 2 4 7E-8 F1 4 10 POLY(2) VS1 VS2 (0,7E-5,7E-5) R2 10 8 4E3 I2 8 0 DC 0 * * NOISE VOLTAGE GENERATOR * VN1 40 0 DC 2 DN1 40 41 DEN DN2 41 42 DEN VN2 0 42 DC 2 * * INTERNAL OP AMP AND DOMINANT POLE @ 1.5 Hz * G2 4 11 8 26 1E-3 R3 11 4 3.1623E8 C1 11 4 3.3553E-10 D1 11 12 DX V1 2 12 DC 2.2 * * SECONDARY POLE @ 3 MHz * G3 4 13 11 4 1E-6 R4 13 4 1E6 C2 13 4 5.3052E-14 * * OUTPUT STAGE * ISY 2 4 3E-3 FSY 2 4 V1 -1 RSY 2 4 77.778E3 * G4 4 14 13 4 1E-5 R5 14 4 1E5 FSC1 14 4 VSC1 1 R7 20 21 13.35 R8 21 22 10 FSC2 14 4 VSC2 1 Q1 4 14 15 QP I3 2 15 DC 100E-6 Q2 2 15 17 QN I4 17 4 DC 100E-6 Q3 4 15 18 QP I5 2 18 DC 100E-6 Q4 2 18 19 QN VS1 20 19 DC 0 VS2 22 23 DC 0 Q5 25 17 23 QP RF 22 26 6E3 RT 26 5 140E3 RI 26 4 14E3 LO 22 6 1E-7 * * SHORT-CIRCUIT CURRENT LIMITING * VSC1 2 24 DC 0 QSC1 24 20 21 QN * VSC2 2 16 DC 0 QSC2 16 25 4 QN R9 25 4 10 * .MODEL QN NPN(IS=1E-15 BF=1E3) .MODEL QP PNP(IS=1E-15 BF=1E3) .MODEL DX D(IS=1E-15) .MODEL DEN D(IS=1E-12 RS=5.77069E5 AF=1 KF=1.87644E-15) .ENDS AD587J * * AD587K SPICE Macromodel 11/93, Rev. A * AAG / PMI * * This version of the AD587 voltage reference model simulates the worst case * parameters of the 'K' grade. The worst case parameters used correspond * to those parameters in the data sheet. * * Copyright 1993 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 NUMBERS * VIN * | GND * | | TRIM * | | | VOUT * | | | | NOISE REDUCTION * | | | | | .SUBCKT AD587K 2 4 5 6 8 * * BURIED ZENER REFERENCE * I1 4 50 DC 6.99565E-3 R1 50 4 1E3 TC=10E-6 EN 10 50 41 0 1 G1 4 10 2 4 7E-8 F1 4 10 POLY(2) VS1 VS2 (0,7E-5,7E-5) R2 10 8 4E3 I2 8 0 DC 0 * * NOISE VOLTAGE GENERATOR * VN1 40 0 DC 2 DN1 40 41 DEN DN2 41 42 DEN VN2 0 42 DC 2 * * INTERNAL OP AMP AND DOMINANT POLE @ 1.5 Hz * G2 4 11 8 26 1E-3 R3 11 4 3.1623E8 C1 11 4 3.3553E-10 D1 11 12 DX V1 2 12 DC 2.2 * * SECONDARY POLE @ 3 MHz * G3 4 13 11 4 1E-6 R4 13 4 1E6 C2 13 4 5.3052E-14 * * OUTPUT STAGE * ISY 2 4 3E-3 FSY 2 4 V1 -1 RSY 2 4 77.778E3 * G4 4 14 13 4 1E-5 R5 14 4 1E5 FSC1 14 4 VSC1 1 R7 20 21 13.35 R8 21 22 10 FSC2 14 4 VSC2 1 Q1 4 14 15 QP I3 2 15 DC 100E-6 Q2 2 15 17 QN I4 17 4 DC 100E-6 Q3 4 15 18 QP I5 2 18 DC 100E-6 Q4 2 18 19 QN VS1 20 19 DC 0 VS2 22 23 DC 0 Q5 25 17 23 QP RF 22 26 6E3 RT 26 5 140E3 RI 26 4 14E3 LO 22 6 1E-7 * * SHORT-CIRCUIT CURRENT LIMITING * VSC1 2 24 DC 0 QSC1 24 20 21 QN * VSC2 2 16 DC 0 QSC2 16 25 4 QN R9 25 4 10 * .MODEL QN NPN(IS=1E-15 BF=1E3) .MODEL QP PNP(IS=1E-15 BF=1E3) .MODEL DX D(IS=1E-15) .MODEL DEN D(IS=1E-12 RS=5.77069E5 AF=1 KF=1.87644E-15) .ENDS AD587K