* REF-10A SPICE MACROMODEL 5/91, Rev. A * (JCB / PMI) * * This version of the REF10 model simulates the worst case * parameters of the 'A' 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 NUMBERS * VIN * | GND * | | TRIM * | | | VOUT * | | | | .SUBCKT REF-10A 2 4 5 6 * * 1.23V REFERENCE * I1 4 10 537.719E-9 R1 10 4 2.284E6 TC=8.5E-6 G1 4 10 2 4 54.0E-12 F1 4 10 VS 43.2E-9 * * INTERNAL OP AMP * G2 4 11 10 19 2E-3 R2 4 11 150E6 C1 4 11 2.1E-10 D1 11 12 DX V1 2 12 2.0 * * SECONDARY POLE * G3 4 13 11 4 1E-6 R3 4 13 1E6 C2 4 13 1.2E-13 * * OUTPUT STAGE * ISY 2 4 0.78E-3 FSY 2 4 V1 -1 G4 4 14 13 4 25E-6 R4 4 14 40E3 R7 17 19 14.2114E3 R8 19 4 2E3 R9 19 5 52.97E3 R10 5 4 1E12 Q1 16 14 17 QN VS 18 17 DC 0 L1 18 6 1E-7 * * OUTPUT CURRENT LIMIT * Q2 15 2 16 QN R6 2 16 21 R5 2 15 18E3 C3 2 15 1E-6 G5 14 4 2 15 1 * .MODEL QN NPN(IS=1E-15 BF=1000) .MODEL DX D(IS=1E-15) .ENDS REF-10A