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***
* (C) COPYRIGHT LINEAR TECHNOLOGY CORPORATION 1993
* All rights reserved.
*
* Linear Technology Corporation hereby grants the users of this
* macromodel a non-exclusive, nontransferrable license to use this
* macromodel under the following conditions:
*
* The user agrees that this macromodel is licensed from Linear
* Technology and agrees that the macromodel may be used, loaned,
* given away or included in other model libraries as long as this
* notice and the model in its entirety and unchanged is included.
* No right to make derivative works or modifications to the
* macromodel is granted hereby. All such rights are reserved.
*
* This model is provided as is. Linear Technology makes no
* warranty, either expressed or implied about the suitability or
* fitness of this model for any particular purpose. In no event
* will Linear Technology be liable for special, collateral,
* incidental or consequential damages in connection with or arising
* out of the use of this macromodel. It should be remembered that
* models are a simplification of the actual circuit.
*
* Linear Technology reserves the right to change these macromodels
* without prior notice. Contact Linear Technology at 1630 McCarthy
* Blvd., Milpitas, CA, 95035-7487 or telephone 408/432-1900 for
* datasheets on the actual amplifiers or the latest macromodels.
*
* ----------------------------------------------------------------------- ** LINEAR TECHNOLOGY LT1251 VIDEO FADER MACROMODEL
* WRITTEN: 3-11-1994 BY WILLIAM H. GROSS.
*
* CONNECTIONS: AS PER DATASHEET PINOUT
*1=FIRST NON-INVERTING INPUT
*2=FIRST INVERTING INPUT
*3=CONTROL VOLTAGE INPUT
*4=CONTROL CURRENT INPUT
*5=CONTROL RESISTOR, RC
*6=NULL INPUT
*7=NEGATIVE SUPPLY
*8=OUTPUT
*9=POSITIVE SUPPLY
*10=FULL SCALE RESISTOR, RFS
*11=FULL SCALE CURRENT INPUT
*12=FULL SCALE VOLTAGE INPUT
*13=SECOND INVERTING INPUT
*14=SECOND NON-INVERTING INPUT
*
.SUBCKT LT1251 1 2 3 4 5 6 7 8 9 10 11 12 13 14
*
*FIRST INPUT STAGE
IB1 1 0 500NA
RI1 1 0 17MEG
C1 1 0 1.5PF
E1 2A 0 VALUE={LIMIT (V(1),V(8N)+0.4,V(8P)-0.4)+V(EN)/30}
VOS1 2A 2B 2.5MV
R1 2B 2 27
C2 2 0 1PF
*
*SECOND INPUT STAGE
IB2 14 0 450NA
RI2 14 0 17MEG
C14 14 0 1.5PF
E2 13A 0 VALUE={LIMIT (V(14),V(8N)+0.4,V(8P)-0.4)+V(EN)/30}
VOS2 13A 13B 1.5MV
R2 13B 13 27
C13 13 0 1PF
*
*CONTROL AMP
IBC 3 0 -300NA
RIC 3 0 100MEG
C3 3 0 1PF
R3 3 3A 1600
CBWC 3A 0 10PF
EC 3B 0 3A 0 1.0
VOSC 3B 4 5MV
C4 4 0 1PF
RC 4 5 5K
C5 5 0 1PF
*
*FULL SCALE AMP
IBFS 12 0 -300NA
RIFS 12 0 100MEG
C12 12 0 1PF
R12 12 12A 1600
CBWFS 12A 0 10PF
EFS 12B 0 12A 0 1.0
VOSFS 12B 11 -5MV
C11 11 0 1PF
RFS 11 10 5K
C10 10 0 1PF
*
*GENERATING K
EK K 0 TABLE {I(VOSC)/I(VOSFS)} = (-100,0) (0.04,0) (0.1,0.11)
+ (0.9,0.907) (0.95,1.0) (100,1.0)
RDUMMY K 0 1MEG
RNOISE1 EN 0 200K
RNOISE2 EN 0 200K
*GENERATES 40.7NV/RTHZ
*
*NULL CIRCUIT
GNULL 7 6A VALUE={I(VOSFS)}
RN1 6A 7 200
VNULL 6A 6B 0.0V
RN2 6B 6 400
C6 6 7 1PF
*
*OUTPUT STAGE
E6 8A 0
+VALUE={1.8MEG*(I(VOS1)*V(K)+I(VOS2)*(1-V(K))-I(VNULL)+0.10UA+0.0007*V(EN))}
RG 8A 8B 1.8MEG
CG 8B 0 3.4PF
E8 8C 0 8B 0 1.0
V8 8C 8D 0.0V
R8 8D 8 11
*
*OUTPUT SWING AND CURRENT LIMIT
DP 8B 8P D1
VDP 8P 9 -1.4V
DN 8N 8B D1
VDN 8N 7 1.4V
.MODEL D1 D
GCL 8B 0 TABLE {I(V8)}=(-1,-1) (-0.04,0) (0.04,0) (1,1)
*
*SUPPLY CURRENT
GQ 9 7 VALUE={1MA+24*I(VOSFS)+(V(7)-V(9))/20K}
GCC 9 0 TABLE {I(V8)}=(-1,0) (0,0) (1,1)
GEE 7 0 TABLE {I(V8)}=(-1,-1) (0,0) (1,0)
*
.ENDS LT1251
***
* (C) COPYRIGHT LINEAR TECHNOLOGY CORPORATION 1993
* All rights reserved.
*
* Linear Technology Corporation hereby grants the users of this
* macromodel a non-exclusive, nontransferrable license to use this
* macromodel under the following conditions:
*
* The user agrees that this macromodel is licensed from Linear
* Technology and agrees that the macromodel may be used, loaned,
* given away or included in other model libraries as long as this
* notice and the model in its entirety and unchanged is included.
* No right to make derivative works or modifications to the
* macromodel is granted hereby. All such rights are reserved.
*
* This model is provided as is. Linear Technology makes no
* warranty, either expressed or implied about the suitability or
* fitness of this model for any particular purpose. In no event
* will Linear Technology be liable for special, collateral,
* incidental or consequential damages in connection with or arising
* out of the use of this macromodel. It should be remembered that
* models are a simplification of the actual circuit.
*
* Linear Technology reserves the right to change these macromodels
* without prior notice. Contact Linear Technology at 1630 McCarthy
* Blvd., Milpitas, CA, 95035-7487 or telephone 408/432-1900 for
* datasheets on the actual amplifiers or the latest macromodels.
*
* ----------------------------------------------------------------------- ** LINEAR TECHNOLOGY LT1256 VIDEO FADER MACROMODEL
* WRITTEN: 3-11-1994 BY WILLIAM H. GROSS.
*
* CONNECTIONS: AS PER DATASHEET PINOUT
*1=FIRST NON-INVERTING INPUT
*2=FIRST INVERTING INPUT
*3=CONTROL VOLTAGE INPUT
*4=CONTROL CURRENT INPUT
*5=CONTROL RESISTOR, RC
*6=NULL INPUT
*7=NEGATIVE SUPPLY
*8=OUTPUT
*9=POSITIVE SUPPLY
*10=FULL SCALE RESISTOR, RFS
*11=FULL SCALE CURRENT INPUT
*12=FULL SCALE VOLTAGE INPUT
*13=SECOND INVERTING INPUT
*14=SECOND NON-INVERTING INPUT
*
.SUBCKT LT1256 1 2 3 4 5 6 7 8 9 10 11 12 13 14
*
*FIRST INPUT STAGE
IB1 1 0 500NA
RI1 1 0 17MEG
C1 1 0 1.5PF
E1 2A 0 VALUE={LIMIT (V(1),V(8N)+0.4,V(8P)-0.4)+V(EN)/30}
VOS1 2A 2B 2.5MV
R1 2B 2 27
C2 2 0 1PF
*
*SECOND INPUT STAGE
IB2 14 0 450NA
RI2 14 0 17MEG
C14 14 0 1.5PF
E2 13A 0 VALUE={LIMIT (V(14),V(8N)+0.4,V(8P)-0.4)+V(EN)/30}
VOS2 13A 13B 1.5MV
R2 13B 13 27
C13 13 0 1PF
*
*CONTROL AMP
IBC 3 0 -300NA
RIC 3 0 100MEG
C3 3 0 1PF
R3 3 3A 1600
CBWC 3A 0 10PF
EC 3B 0 3A 0 1.0
VOSC 3B 4 5MV
C4 4 0 1PF
RC 4 5 5K
C5 5 0 1PF
*
*FULL SCALE AMP
IBFS 12 0 -300NA
RIFS 12 0 100MEG
C12 12 0 1PF
R12 12 12A 1600
CBWFS 12A 0 10PF
EFS 12B 0 12A 0 1.0
VOSFS 12B 11 -5MV
C11 11 0 1PF
RFS 11 10 5K
C10 10 0 1PF
*
*GENERATING K
EK K 0 TABLE {I(VOSC)/I(VOSFS)} = (-100,0) (0,0) (0.2,0.21)
+ (0.9,0.9) (1.0,1.0) (100,1.0)
RDUMMY K 0 1MEG
RNOISE1 EN 0 200K
RNOISE2 EN 0 200K
*GENERATES 40.7NV/RTHZ
*
*NULL CIRCUIT
GNULL 7 6A VALUE={I(VOSFS)}
RN1 6A 7 200
VNULL 6A 6B 0.0V
RN2 6B 6 400
C6 6 7 1PF
*
*OUTPUT STAGE
E6 8A 0
+VALUE={1.8MEG*(I(VOS1)*V(K)+I(VOS2)*(1-V(K))-I(VNULL)+0.10UA+0.0007*V(EN))}
RG 8A 8B 1.8MEG
CG 8B 0 3.4PF
E8 8C 0 8B 0 1.0
V8 8C 8D 0.0V
R8 8D 8 11
*
*OUTPUT SWING AND CURRENT LIMIT
DP 8B 8P D1
VDP 8P 7 -1.4V
DN 8N 8B D1
VDN 8N 9 1.4V
.MODEL D1 D
GCL 8B 0 TABLE {I(V8)}=(-1,-1) (-0.04,0) (0.04,0) (1,1)
*
*SUPPLY CURRENT
GQ 9 7 VALUE={1MA+24*I(VOSFS)+(V(7)-V(9))/20K}
GCC 9 0 TABLE {I(V8)}=(-1,0) (0,0) (1,1)
GEE 7 0 TABLE {I(V8)}=(-1,-1) (0,0) (1,0)
*
.ENDS LT1256
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