* AD847 SPICE Macro-model 12/90, Rev. A * JCB / PMI * * Copyright 1990 by Analog Devices * * 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 AD847 1 2 99 50 30 * * INPUT STAGE & POLE AT 300 MHZ * R1 2 3 5E11 R2 1 3 5E11 R3 5 99 443 R4 6 99 443 CIN 1 2 1.5E-12 C2 5 6 0.599E-12 I1 4 50 2.22E-3 IOS 1 2 25E-9 EOS 9 1 POLY(1) 19 23 0.5E-3 1 Q1 5 2 10 QX Q2 6 9 11 QX R5 10 4 419.8 R6 11 4 419.8 * EREF 98 0 23 0 1 * * GAIN STAGE & DOMINANT POLE AT 8.8 KHZ * R7 12 98 2.44E6 C3 12 98 7.4E-12 G1 98 12 5 6 2.25E-3 V2 99 13 0.8 V3 14 50 0.8 D3 12 13 DX D4 14 12 DX * * ZERO/POLE PAIR AT 70MHz/200MHz * R8 15 16 1E6 R9 16 98 1.86E6 L1 16 98 1.48E-3 G2 98 15 12 23 1E-6 * * POLE AT 300 MHZ * R41 41 98 1E6 C41 41 98 531E-18 G41 98 41 15 23 1E-6 * * POLE AT 300 MHZ * R42 42 98 1E6 C42 42 98 531E-18 G42 98 42 41 23 1E-6 * * POLE AT 400 MHZ * R43 43 98 1E6 C43 43 98 398E-18 G43 98 43 42 23 1E-6 * * COMMON-MODE GAIN NETWORK WITH ZERO AT 40 kHZ * R11 18 19 1E6 C6 18 19 3.98E-12 R12 19 98 1 E2 18 98 3 23 17.8 * * POLE AT 400 MHZ * R15 22 98 1E6 C8 22 98 398E-18 G3 98 22 43 23 1E-6 * * OUTPUT STAGE * RF 30 60 500 CF 60 12 12.5E-12 R16 23 99 100E3 R17 23 50 100E3 ISY 99 50 2.95E-3 R18 25 99 90 R19 25 50 90 L2 25 30 3E-8 G4 28 50 22 25 11.11E-3 G5 29 50 25 22 11.11E-3 G6 25 99 99 22 11.11E-3 G7 50 25 22 50 11.11E-3 V4 26 25 0.8 V5 25 27 0.8 D5 22 26 DX D6 27 22 DX D7 99 28 DX D8 99 29 DX D9 50 28 DY D10 50 29 DY * * MODELS USED * .MODEL QX NPN(BF=336) .MODEL DX D(IS=1E-15) .MODEL DY D(IS=1E-15 BV=50) .ENDS .MODEL DY D(IS=1E-15 BV=50) .ENDS