OP297 Datasheet, PDF (13/16 Pages) Analog Devices – Dual Low Bias Current Precision Operational Amplifier

8/21/97 4:00 PM
OP297
Table I. SPICE Net-List
OP297 SPICE MACRO-MODEL
•
• NODE ASSIGNMENTS
•NONINVERTING INPUT
INVERTING INPUT
OUTPUT
POSITIVE SUPPLY
NEGATIVE SUPPLY
• SUBCKT OP297 1 2 30 99 50
•
INPUT STAGE & POLE AT 6 MHz
•
RIN1 1 7 2500
RIN2 2 8 2500
R1 8 3 5E11
R2 7 3 5E11
R3 5 99 612
R4 6 99 612
CIN 7 8 3E-12
C2 5 6 21.67E-12
I1 4 50 0.1E-3
IOS 7 8 20E-12
EOS 9 7 POLY(1) 19 23 25E-6 1
Q1 5 8 10 QX
Q2 6 9 11 QX
R5 10 4
96
R6 11 4
96
D1 8 9
DX
D2 9 8
DX
•
EREF 98 0
23 0 1
•
GAIN STAGE & DOMINANT POLE AT 0.13 HZ
•
R7 12 98 2.45E9
C3 12 98 500E-12
G1 98 12 5 6 1.634E-3
V2 99 13 1.5
V3 14 50 1.5
D3 12 13 DX
D4 14 12 DX
•
• NEGATIVE ZERO AT -1 8 MHz
•
R8 15 16 1E6
C4 15 16 –88.4E-15
R9 16 98 1
E1 15 98 12 23 1E6
•
• POLE AT 1.8 MHz
•
R10 17 98 1E6
C5 17 98 88 4E-15
G2 98 17 16 23 1 E-6
•
• COMMON-MODE GAIN NETWORK WITH ZERO AT 50 HZ
•
R11 18 19 1E6
C6 18 19 3.183E-9
R12 19 98 1
E2 18 98 3 23 100E-3
•
• POLE AT 6 MHz
•
R15 22 98 1E6
C8 22 98 26.53E-15
G3 98 22 17 23 1 E-6
•
• OUTPUT STAGE
•
R16 23 99 160K
R17 23 50 160K
ISY 99 50 331 E-6
R18 25 99 200
R19 25 50 200
L1 25 30 1 E-7
G4 28 50 22 25 5E-3
G5 29 50 25 22 5E-3
G6 25 99 99 22 5E-3
G7 50 25 22 50 5E-3
V4 26 25 1.8
V5 25 27 1.3
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=2.5E6)
• MODEL DX D IS = 1 E-15)
• MODEL DY D IS = 1 E-15 BV = 50)
• ENDS OP297
REV. D
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