OP250GS datasheet(14/16 Pages) AD

14 / 16 page

OP250/OP450

REV. 0

–14–

* OP250 SPICE Macro-Model Typical Values

* 10/97, Ver. 1

* TAM / ADSC

* Node assignments

noninverting input

inverting input

positive supply

negative supply

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output

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.SUBCKT OP250 1

* INPUT STAGE

6 6 MNIN L=2u W=66u

9 9 MPIN L=2u W=66u

RD1

4 5E3

RD2

5 5E3

RD3

7 50 5E3

RD4

8 50 5E3

VCM1

10 50 -.3

VCM2

99 11 -.3

6 DX

9 11 DX

EOS

1 POLY(3) (61,98) (73,98) (81,0) 3E-3

+1 1 1

IOS

2 .25E-12

IBIAS1

6 50 700E-6

IBIAS2 99

9 700E-6

* CMRR=60 dB, ZERO AT 20kHz

ECM1 60 98 POLY(2) (1,98) (2,98) 0 .5 .5

RCM1 60 61 159.2E3

RCM2 61 98 159

CCM1 60 61 50E-12

* PSRR=90dB, ZERO AT 200Hz

RPS1 70

0 1E6

RPS2 71

0 1E6

CPS1 99 70 1E-5

CPS2 50 71 1E-5

EPSY 98 72 POLY(2) (70,0) (0,71) 0 1 1

RPS3 72 73 1.59E6

CPS3 72 73 500E-12

RPS4 73 98 50

* INTERNAL VOLTAGE REFERENCE

RSY1 99 91 100E3

RSY2 50 90 100E3

VSN1 91 90 DC 0

EREF 98

0 (90,0) 1

GSY

99 50 POLY(1) (99,50) -1.81E-3 1.5E-5

* VOLTAGE NOISE REFERENCE OF 30nV/rt(Hz)

VN1 80 0 0

RN1 80 0 16.45E-3

81 0 VN1 30

RN2 81 0 1

* POLE AT 1.25MHz

G2 98 20 POLY(2) (4,5) (7,8) 0 5E-5 5E-5

R2 20 98 10E3

C2 20 98 12.7E-12

* GAIN STAGE

G1 98 30 (20,98) 3.5E-4

R1 30 98 6.25E6

CF 30 45 135E-12

D4 31 99 DX

D5 50 32 DX

V1 31 30 0.7

V2 30 32 0.7

* OUTPUT STAGE

45 41 99 99 MPOUT L=2u W=6660u

45 42 50 50 MNOUT L=2u W=6660u

EO1 99 41 POLY(1) (98,30) .9232 1

EO2 42 50 POLY(1) (30,98) .8914 1

* MODELS

.MODEL MNIN

NMOS(LEVEL=2,VTO=0.75,

+KP=20E-6,CGSO=0,KF=2.5E-31,AF=1)

.MODEL MPIN

PMOS(LEVEL=2,VTO=-0.75,

+KP=20E-6,CGSO=0,KF=2.5E-31,AF=1)

.MODEL MNOUT NMOS(LEVEL=2,VTO=0.75,

+KP=30E-6,LAMBDA=0.04,CGSO=0)

.MODEL MPOUT PMOS(LEVEL=2,VTO=-0.75,

+KP=20E-6,LAMBDA=0.04,CGSO=0)

.MODEL DX D(IS=1E-16)

.ENDS OP250

OP250GS Datasheet(PDF) 14 Page - Analog Devices

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