OP181 데이터 시트보기 (PDF) - Analog Devices

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OP181

Ultralow Power, Rail-to-Rail Output Operational Amplifiers

Analog Devices 

OP181/OP281/OP481

ECM1 11 98 POLY(2) (1, 98) (2, 98) 0 .5 .5

R1 11 12 1.59E6

C1 11 12 100E-12

R2 12 98 283

*

* POLE AT 900kHz

*

EREF 98 0 (90, 0) 1

G1 98 20 (4, 6) 1E-6

R3 20 98 1E6

C2 20 98 177E-15

*

* POLE AT 500kHz

*

E2 21 98 (20, 98) 1

R4 21 22 1E6

C3 22 98 320E-15

*

* GAIN STAGE

*

CF 45 40 8. 5E-12

R5 40 98 65. 65E6

G3 98 40 (22, 98) 4.08E-7

D3 40 41 DX

D4 42 40 DX

V3 99 41 DC 0.5

V4 42 50 DC 0.5

*

* OUTPUT STAGE

*

ISY 99 50 1.375E-6

RS1 99 90 10E6

RS2 90 50 10E6

M1 45 46 99 99 POX L=1.5u W=300u

M2 45 47 50 50 NOX L=1.5u W=300u

EG1 99 46 POLY(1) (98, 40) 0.77 1

EG2 47 50 POLY(1) (40, 98) 0.77 1

*

* MODELS

*

.MODEL POX PMOS (LEVEL=2, KP=25E-6, VTO=-0.75, LAMBDA=0.01)

.MODEL NOX NMOS (LEVEL=2, KP=25E-6, VTO=0.75, LAMBDA=0.01)

.MODEL PIX PNP (BF=200)

.MODEL DX D(IS=1E-14)

.ENDS

–14–

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