I am having trouble creating a working component for a TI monolithic ic instrumentation amp (INA14). The spice model has several subcircuits each with its own node definition (presented at end of document). The component I create simulates but does not give correct information.

Should I be using a part of the model?

Does this need to be a multisection component?

Any other ideas?


***** INA114 SUB-CIRCUIT

* CONNECTIONS: NON-INVERTING INPUT

* | INVERTING INPUT

* | | POSITIVE POWER SUPPLY

* | | | NEGATIVE POWER SUPPLY

* | | | | OUTPUT

* | | | | | FEEDBACK

* | | | | | | REFERENCE

* | | | | | | | GAIN SET 1

* | | | | | | | | GAIN SET 2

* | | | | | | | | |

.SUBCKT INA114 1 2 3 4 5 6 8 9 10

*

***** A1_114 SUBCIRCUIT

* CONNECTIONS: NON-INVERTING INPUT

* | INVERTING INPUT

* | | POSITIVE POWER SUPPLY

* | | | NEGATIVE POWER SUPPLY

* | | | | OUTPUT

* | | | | |

X1 2 9 3 4 11 A1_114

*

* CONNECTIONS: NON-INVERTING INPUT

* | INVERTING INPUT

* | | POSITIVE POWER SUPPLY

* | | | NEGATIVE POWER SUPPLY

* | | | | OUTPUT

* | | | | |

X2 1 10 3 4 12 A2_114

*

* CONNECTIONS: NON-INVERTING INPUT

* | INVERTING INPUT

* | | POSITIVE POWER SUPPLY

* | | | NEGATIVE POWER SUPPLY

* | | | | OUTPUT

* | | | | |

X3 14 13 3 4 5 A3_114

*

R1 11 13 25K

R2 13 6 24.9985K

C2 13 6 5P

R3 12 14 25K

R4 14 8 25K

RFB1 9 11 25K

CC1 9 11 5P

RFB2 10 12 25K

CC2 10 12 5P

*

.ENDS

*

* A1_114 OPERATIONAL AMPLIFIER " MACROMODEL" SUBCIRCUIT

* CREATED USING PARTS RELEASE 5.0 ON 1/22/92 AT 13:21

*

* CONNECTIONS: NON-INVERTING INPUT

* | INVERTING INPUT

* | | POSITIVE POWER SUPPLY

* | | | NEGATIVE POWER SUPPLY

* | | | | OUTPUT

* | | | | |

.SUBCKT A1_114 1 2 3 4 5

*

C1 11 12 6.060E-12

C2 6 7 30.00E-12

DC 5 53 DX

DE 54 5 DX

DLP 90 91 DX

DLN 92 90 DX

DP 4 3 DX

EGND 99 0 POLY(2) (3,0) (4,0) 0 .5 .5

FB 7 99 POLY(5) VB VC VE VLP VLN 0 165.8E6 -20E6 20E6 20E6 -20E6

GA 6 0 11 12 188.5E-6

GCM 0 6 10 99 188.5E-12

IEE 10 4 DC 27E-6

HLIM 90 0 VLIM 1K

Q1 11 2 13 QX

Q2 12 1 14 QX

R2 6 9 100.0E3

RC1 3 11 5.305E3

RC2 3 12 5.305E3

RE1 13 10 4.348E3

RE2 14 10 4.348E3

REE 10 99 7.4074E6

RO1 8 5 40

RO2 7 99 320

RP 3 4 52.53E3

VB 9 0 DC 0

VC 3 53 DC 1.672

VE 54 4 DC 1.672

VLIM 7 8 DC 0

VLP 91 0 DC 2

VLN 0 92 DC 2

.MODEL DX D(IS=800.0E-18)

.MODEL QX NPN(IS=800.0E-18 BF=36.00E3)

.ENDS

*

* A2_114 OPERATIONAL AMPLIFIER " MACROMODEL" SUBCIRCUIT

* CREATED USING PARTS RELEASE 5.0 ON 1/22/92 AT 13:30

*

* CONNECTIONS: NON-INVERTING INPUT

* | INVERTING INPUT

* | | POSITIVE POWER SUPPLY

* | | | NEGATIVE POWER SUPPLY

* | | | | OUTPUT

* | | | | |

.SUBCKT A2_114 1 2 3 4 5

*

C1 11 12 6.060E-12

C2 6 7 30.00E-12

DC 5 53 DX

DE 54 5 DX

DLP 90 91 DX

DLN 92 90 DX

DP 4 3 DX

EGND 99 0 POLY(2) (3,0) (4,0) 0 .5 .5

FB 7 99 POLY(5) VB VC VE VLP VLN 0 165.8E6 -20E6 20E6 20E6 -20E6

GA 6 0 11 12 188.5E-6

GCM 0 6 10 99 188.5E-12

IEE 10 4 DC 27E-6

HLIM 90 0 VLIM 1K

Q1 11 2 13 QX

Q2 12 1 14 QX

R2 6 9 100.0E3

RC1 3 11 5.305E3

RC2 3 12 5.305E3

RE1 13 10 4.318E3

RE2 14 10 4.348E3

REE 10 99 7.4074E6

RO1 8 5 40

RO2 7 99 320

RP 3 4 52.53E3

VB 9 0 DC 0

VC 3 53 DC 1.672

VE 54 4 DC 1.672

VLIM 7 8 DC 0

VLP 91 0 DC 2

VLN 0 92 DC 2

.MODEL DX D(IS=800.0E-18)

.MODEL QX NPN(IS=800.0E-18 BF=36.00E3)

.ENDS

*

* A3_114 OPERATIONAL AMPLIFIER " MACROMODEL" SUBCIRCUIT

* CREATED USING PARTS RELEASE 5.0 ON 1/22/92 AT 13:46

*

* CONNECTIONS: NON-INVERTING INPUT

* | INVERTING INPUT

* | | POSITIVE POWER SUPPLY

* | | | NEGATIVE POWER SUPPLY

* | | | | OUTPUT

* | | | | |

.SUBCKT A3_114 1 2 3 4 5

*

C1 11 12 13.51E-12

C2 6 7 30.00E-12

DC 5 53 DX

DE 54 5 DX

DLP 90 91 DX

DLN 92 90 DX

DP 4 3 DX

EGND 99 0 POLY(2) (3,0) (4,0) 0 .5 .5

FB 7 99 POLY(5) VB VC VE VLP VLN 0 251.9E6 -30E6 30E6 30E6 -30E6

GA 6 0 11 12 339.3E-6

GCM 0 6 10 99 339.3E-12

IEE 10 4 DC 18E-6

HLIM 90 0 VLIM 1K

Q1 11 2 13 QX

Q2 12 1 14 QX

R2 6 9 100.0E3

RC1 3 11 2.947E3

RC2 3 12 2.947E3

RE1 13 10 74.778

RE2 14 10 74.778

REE 10 99 11.111E6

RO1 8 5 13

RO2 7 99 117

RP 3 4 30.123E3

VB 9 0 DC 0

VC 3 53 DC 1.972

VE 54 4 DC 1.972

VLIM 7 8 DC 0

VLP 91 0 DC 12

VLN 0 92 DC 12

.MODEL DX D(IS=800.0E-18)

.MODEL QX NPN(IS=800.0E-18 BF=30.00E3)

.ENDS

 

Try moving the first .ENDS to the end so the last two statements are: .ENDS, .ENDS. That way, the subcircuits A1, A2, A3 are part of the main subcircuit.

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