OP275_15 Datasheet, PDF (11/12 Pages) Analog Devices – Dual Bipolar/JFET, Audio Operational Amplifier

OP275 SPICE Model
*
* Node assignments
*
noninverting input
*
inverting input
*
positive supply
*
negative supply
*
output
**
.SUBCKT OP275 1 2 99 50 34
*
* INPUT STAGE & POLE AT 100 MHz
*
R3 5 51 2.188
R4 6 51 2.188
CIN 1 2 3.7E-12
CM1 1 98 7.5E-12
CM2 2 98 7.5E-12
C2 5 6 364E-12
I1 97 4 100E-3
IOS 1 2 1E-9
EOS 9 3 POLY(1) 26 28 0.5E-3 1
Q1 5 2 7
QX
Q2 6 9 8
QX
R5 7 4 1.672
R6 8 4 1.672
D1 2 36 DZ
D2 1 36 DZ
EN 3 1 10
01
GN1 0 2 13
0 1E-3
GN2 0 1 16
0 1E-3
*
EREF 98 0 28
01
EP 97 0 99
01
EM 51 0 50
01
*
* VOLTAGE NOISE SOURCE
*
DN1 35 10 DEN
DN2 10 11 DEN
VN1 35 0 DC
2
VN2 0 11 DC
2
*
* CURRENT NOISE SOURCE
*
DN3 12 13 DIN
DN4 13 14 DIN
VN3 12 0 DC
2
VN4 0 14 DC
2
*
* CURRENT NOISE SOURCE
*
DN5 15 16 DIN
DN6 16 17 DIN
VN5 15 0 DC
2
VN6 0 17 DC
2
*
* GAIN STAGE & DOMINANT POLE AT 32 Hz
*
R7 18 98 1.09E6
C3 18 98 4.55E-9
G1 98 18 5
6 4.57E-1
V2 97 19 1.35
V3 20 51 1.35
D3 18 19 DX
D4 20 18 DX
REV. C
OP275
* POLE/ZERO PAIR AT 1.5 MHz/2.7 MHz
*
R8 21 98 1E-3
R9 21 22 1.25E-3
C4 22 98 47.2E-12
G2 98 21 18
28 1E-3
*
* POLE AT 100 MHz
*
R10 23 98 1
C5 23 98 1.59E-9
G3 98 23 21
28 1
*
* POLE AT 100 MHz
*
R11 24 98 1
C6 24 98 1.59E-9
G4 98 24 23
28 1
*
* COMMON-MODE GAIN NETWORK WITH ZERO AT
1 kHz
*
R12 25 26 1E6
C7 25 26 1.5915E-12
R13 26 98 1
E2 25 98 POLY(2) 1 98
2 98
0 2.50
2.50
*
* POLE AT 100 MHz
*
R14 27 98 1
C8 27 98 1.59E-9
G5 98 27 24
28 1
*
* OUTPUT STAGE
*
R15 28 99 100E3
R16 28 50 100E3
C9 28 50 1E-6
ISY 99 50 1.85E-3
R17 29 99 100
R18 29 50 100
L2 29 34 1E-9
G6 32 50 27
29 10E-3
G7 33 50 29
27 10E-3
G8 29 99 99
27 10E-3
G9 50 29 27
50 10E-3
V4 30 29 1.3
V5 29 31 3.8
F1 29 0 V4
1
F2 0 29 V5
1
D5 27 30 DX
D6 31 27 DX
D7 99 32 DX
D8 99 33 DX
D9 50 32 DY
D10 50 33 DY
*
* MODELS USED
*
.MODEL QX
PNP(BF=5E5)
.MODEL DX
D(IS=1E-12)
.MODEL DY
D(IS=1E-15 BV=50)
.MODEL DZ
D(IS=1E-15 BV=7.0)
.MODEL DEN D(IS=1E-12 RS=4.35K KF=1.95E-15
AF=1)
.MODEL DIN D(IS=1E-12 RS=268 KF=1.08E-15 AF=1)
.ENDS
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