SSM2275/SSM2475

REV. A

–15–

Listing 1: SSM2275 SPICE Macro-Model

* SSM2275 SPICE Macro-Model Typical Values

* 8/97, Ver. 1

* TAM / ADSC

*

* Node assignments

*

non-inverting input

*

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inverting input

*

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positive supply

*

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negative supply

*

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output

*

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.SUBCKT SSM2275

1

2

99

50

45

*

* INPUT STAGE

*

Q1

4

3

5 QNIX

Q2

6

2

7 QNIX

RC1

99 11 15E3

RC2

99 12 15E3

RE1

5

8 1E3

RE2

7

8 1E3

EOS

3

1 POLY(2) (61,98) (73,98) 1.5E-3 1.78E-5 1

IOS

1

2 5E-9

ECMH1 4 11 POLY(1) (99,50) 0.9 -30E-3

ECMH2 6 12 POLY(1) (99,50) 0.9 -30E-3

ECML1 9 50 POLY(1) (99,50) 0.1 30E-3

ECML2 10 50 POLY(1) (99,50) 0.1 30E-3

D1

9

5 DX

D2

10

7 DX

D3

13

1 DZ

D4

2 13 DZ

IBIAS 8 50 200E-6

*

* CMRR=115 dB, ZERO AT 1kHz, POLE AT 10kHz

*

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

RCM1 60 61 159.2E3

RCM2 61 98 17.66E3

CCM1 60 61 1E-9

*

* PSRR=120dB, ZERO AT 1kHz

*

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 1E-10

RPS4 73 98 1.59

*

* 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) 0.97E-3 -7E-6

*

* ADAPTIVE POLE AND GAIN STAGE

* AT Vsy= 5, fp=12.50MHz,Av=1

* AT Vsy=30, fp=18.75MHz,Av=1.16

*

G2 98 20 POLY(2) (4,6) (99,50) 0 80.3E-6 0 0 2.79E-6

VR1 20 21 DC 0

H1 21 98 POLY(2) VR1 VSN1 0 11.317E3 0 0 -28.29E6

C2

20 98 1.2E-12

*

* POLE AT 90MHz

*

G3 98 23 (20,98) 565.5E-6

R5 23 98 1.768E3

C3 23 98 1E-12

*

* GAIN STAGE

*

G1 98 30 (23,98) 733.3E-6

R1 30 98 9.993E3

CF 30 45 200E-12

D5 31 99 DX

D6 50 32 DX

V1 31 30 0.6

V2 30 32 0.6

*

* OUTPUT STAGE

*

Q3

46 42 99 QPOX

Q4

47 44 50 QNOX

RO1 46 48 30

RO2 47 49 30

VO1 45 48 15E-3

VO2 49 45 10E-3

RB1 41 42 200

RB2 43 44 200

EO1 99 41 POLY(1) (98,30) 0.7528 1

EO2 43 50 POLY(1) (30,98) 0.7528 1

*

* MODELS

*

.MODEL QNIX NPN(IS=1E-16,BF=400,KF=1.96E-14,AF=1)

.MODEL QNOX NPN(IS=1E-16,BF=100,VAF=130)

.MODEL QPOX PNP(IS=1E-16,BF=100,VAF=130)

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

.MODEL DZ D(IS=1E-14,BV=6.6)

.ENDS SSM2275