* Z:\home\khalils\Downloads\files\data\raw_asc\27bb6bad2be6_HVOpAmp.asc
* Generated by LTspice 26.0.1 for Windows.
*//////////////////////////////////////////////////////////////////////
* (C) National Semiconductor, Inc.
* Models developed and under copyright by:
* National Semiconductor, Inc.
*/////////////////////////////////////////////////////////////////////
* Legal Notice: This material is intended for free software support.
* The file may be copied, and distributed; however, reselling the
* material is illegal
*////////////////////////////////////////////////////////////////////
* For ordering or technical information on these models, contact:
* National Semiconductor's Customer Response Center
* 7:00 A.M.--7:00 P.M. U.S. Central Time
* (800) 272-9959
* For Applications support, contact the Internet address:
* amps-apps@galaxy.nsc.com
* ///////////////////////////////////////////////////////////////////
* User Notes:
*
* 1. Input resistance (Rin) for these JFET op amps is 1TOhm. Rin is
* modeled by assuming the option GMIN=1TOhm. If a different (non-
* default) GMIN value is needed, users may recalculate as follows:
* Rin=(R1||GMIN+R2||GMIN), where R1=R2,
* to maintain a consistent Rin model.
* ///////////////////////////////////////////////////////////////////
*//////////////////////////////////////////////////////////
*LF411 LOW OFFSET, LOW DRIFT JFET INPUT OP-AMP MACRO-MODEL
*//////////////////////////////////////////////////////////
*
* connections: non-inverting input
* | inverting input
* | | positive power supply
* | | | negative power supply
* | | | | output
* | | | | |
* | | | | |
*
*Features:
*Fast settling time (.01%) = 2uS
*High bandwidth = 3MHz
*High slew rate = 10V/uS
*Low offset voltage = .5mV
*Low supply current = 1.8mA
*
****************INPUT STAGE**************
*
*^Input offset current
*Fp2=28 MHZ
*
***********COMMON MODE EFFECT***********
*
*^Quiescent supply current
*Input offset voltage.^
*
*********OUTPUT VOLTAGE LIMITING********
*
**************SECOND STAGE**************
*
*Fp1=18 HZ
*
***************POLE STAGE***************
*
*Fp=30 MHz
*
*********COMMON-MODE ZERO STAGE*********
*
*
**************OUTPUT STAGE**************
*
*
***************MODELS USED**************
*
*
*$
Q5 N016 N005 N012 0 MJE350
VA7 99 21 0
R6 N006 N005 10k
R4 N014 N013 10k
R13 17 16 1K
C1 0 OUT 470n
R4 6 50 650
V3 0 N016 125 Rser=0.01
R9 49 50 80K
R8 99 49 80K
VA3 9 11 0
R10 N007 OUT 1
R5 N005 N011 10k
V3 10 50 2.13
XU1 0 N008 N010 N015 N009 LF411 LF411 ;pnba In+)In-)V+)V-)OUT
F6 99 50 VA7 1
V4 N010 0 12 Rser=0.01
V2 99 8 2.13
L2 98 17 144.7M
I2 99 50 800UA
D5 21 23 DX
R8 N001 N002 1
E1 99 26 99 15 1
V5 0 N015 12 Rser=0.01
C3 98 11 857.516P
R3 N013 N016 39k
R2 OUT N008 20k
R1 1 3 1E12
V1 IN 0 PULSE(-2 2 0 1n 1n 5m 10m) Rser=0.01
C5 98 15 5.305E-15
Q3 N004 N004 N002 0 MJE350
D3 15 24 DX
V4 24 28 0.646V
R2 3 2 1E12
CI1 1 0 3P
R16 27 28 50
J2 6 7 4 JX
Q2 N011 N014 N016 0 MJE340
Q4 N006 N004 N003 0 MJE350
VA8 26 27 0
IOS 2 1 25.0P
D6 23 99 DX
Q1 N013 N009 0 0 MJE350
J1 5 2 4 JX
G3 98 15 9 49 1E-6
D2 N009 N008 1N4148
R7 N004 N016 1Meg
EOS 7 1 POLY(1) 16 49 .8E-3 1
F5 99 23 VA8 1
V5 28 25 0.646V
D1 9 8 DX
R9 N001 N003 1
D1 N008 N009 1N4148
D4 25 15 DX
G4 98 16 3 49 1E-8
R11 OUT N012 1
I1 99 4 1.0M
Q6 N001 N005 N007 0 MJE340
R12 98 15 1MEG
R5 98 9 10MEG
D2 10 9 DX
R3 5 50 650
R1 N008 IN 1k
EH 99 98 99 49 1
C4 5 6 4.372P
V2 N001 0 125 Rser=0.01
CI2 2 0 3P
G1 98 9 5 6 20E-3
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.model NPN NPN
.model PNP PNP
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.bjt
.tran 0 50m 0
.SUBCKT LF411 1 2 99 50 28
.MODEL DX D(IS=1E-15)
.MODEL JX PJF(BETA=1.183E-3 VTO=-.65 IS=50E-12)
.ENDS
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 2500 2968
WIRE 1200 -512 64 -512
WIRE 800 -416 544 -416
WIRE 1088 -416 800 -416
WIRE 1344 -416 1088 -416
WIRE 544 -368 544 -416
WIRE 800 -368 800 -416
WIRE 544 -256 544 -288
WIRE 800 -256 800 -288
WIRE 1088 -256 1088 -416
WIRE 1344 -256 1344 -416
WIRE 640 -208 608 -208
WIRE 736 -208 640 -208
WIRE 1024 -208 992 -208
WIRE 64 -192 64 -512
WIRE 544 -128 544 -160
WIRE 640 -128 640 -208
WIRE 640 -128 544 -128
WIRE 544 -80 544 -128
WIRE 800 -80 800 -160
WIRE 1088 -80 1088 -160
WIRE 64 0 64 -112
WIRE 144 0 64 0
WIRE 160 0 144 0
WIRE 256 0 224 0
WIRE 1088 32 1088 0
WIRE 1200 32 1200 -512
WIRE 1200 32 1088 32
WIRE 1216 32 1200 32
WIRE 800 48 800 0
WIRE 992 48 992 -208
WIRE 992 48 800 48
WIRE 1344 48 1344 -176
WIRE 1440 48 1344 48
WIRE 144 64 144 0
WIRE 160 64 144 64
WIRE 256 64 256 0
WIRE 256 64 224 64
WIRE 800 80 800 48
WIRE 1088 80 1088 32
WIRE 1440 80 1440 48
WIRE 144 112 -304 112
WIRE 464 112 352 112
WIRE -304 128 -304 112
WIRE 352 128 352 112
WIRE 464 128 464 112
WIRE 144 144 144 112
WIRE -80 160 -80 80
WIRE -80 160 -144 160
WIRE -64 160 -80 160
WIRE 64 160 64 0
WIRE 64 160 16 160
WIRE 112 160 64 160
WIRE 256 176 256 64
WIRE 256 176 176 176
WIRE 288 176 256 176
WIRE 112 192 64 192
WIRE 1200 192 1200 32
WIRE 1248 192 1200 192
WIRE 1344 192 1344 48
WIRE 1344 192 1312 192
WIRE 800 208 800 160
WIRE 1088 208 1088 160
WIRE -304 240 -304 208
WIRE -304 240 -384 240
WIRE -32 240 -144 240
WIRE 64 240 64 192
WIRE 64 240 -32 240
WIRE -384 256 -384 240
WIRE -304 256 -304 240
WIRE 352 256 352 224
WIRE 624 256 352 256
WIRE 736 256 704 256
WIRE 992 256 992 48
WIRE 1024 256 992 256
WIRE -32 272 -32 240
WIRE 352 272 352 256
WIRE 1344 272 1344 192
WIRE -304 352 -304 336
WIRE 144 352 144 208
WIRE 144 352 -304 352
WIRE 352 384 352 352
WIRE 544 384 544 0
WIRE 544 384 352 384
WIRE 800 384 800 304
WIRE 800 384 544 384
WIRE 1088 384 1088 304
WIRE 1088 384 800 384
WIRE 1344 384 1344 352
WIRE 1344 384 1088 384
IOPIN -80 80 Out
IOPIN 1216 32 Out
SYMBOL voltage -304 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 132 Left 0
SYMATTR SpiceLine Rser=0.01
SYMATTR InstName V4
SYMATTR Value 12
SYMBOL res 528 -384 R0
SYMATTR InstName R8
SYMATTR Value 1
SYMBOL res 32 144 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL npn 1024 -256 R0
SYMATTR InstName Q6
SYMATTR Value MJE340
SYMBOL res 784 -384 R0
SYMATTR InstName R9
SYMATTR Value 1
SYMBOL res 336 256 R0
SYMATTR InstName R3
SYMATTR Value 39k
SYMBOL voltage -144 144 R0
WINDOW 123 24 132 Left 0
WINDOW 39 24 132 Left 0
SYMATTR SpiceLine Rser=0.01
SYMATTR InstName V1
SYMATTR Value PULSE(-2 2 0 1n 1n 5m 10m)
SYMBOL voltage 1344 256 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 132 Left 0
SYMATTR SpiceLine Rser=0.01
SYMATTR InstName V3
SYMATTR Value 125
SYMBOL res 528 -96 R0
SYMATTR InstName R7
SYMATTR Value 1meg
SYMBOL diode 224 -16 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL Opamps\\opamp2 144 112 R0
SYMATTR InstName U1
SYMATTR Value LF411
SYMATTR SpiceModel LF411
SYMBOL pnp 1024 304 M180
SYMATTR InstName Q5
SYMATTR Value MJE350
SYMBOL pnp 736 -160 M180
SYMATTR InstName Q4
SYMATTR Value MJE350
SYMBOL res 1072 64 R0
SYMATTR InstName R11
SYMATTR Value 1
SYMBOL voltage 1344 -272 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 44 Left 0
SYMATTR SpiceLine Rser=0.01
SYMATTR InstName V2
SYMATTR Value 125
SYMBOL res 784 -96 R0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL diode 160 80 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL pnp 288 224 M180
SYMATTR InstName Q1
SYMATTR Value MJE350
SYMBOL npn 736 208 R0
SYMATTR InstName Q2
SYMATTR Value MJE340
SYMBOL res 720 240 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL res 48 -208 R0
SYMATTR InstName R2
SYMATTR Value 20k
SYMBOL pnp 608 -160 R180
SYMATTR InstName Q3
SYMATTR Value MJE350
SYMBOL res 784 64 R0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res 1072 -96 R0
SYMATTR InstName R10
SYMATTR Value 1
SYMBOL cap 1312 176 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 470n
SYMBOL voltage -304 240 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 132 Left 0
SYMATTR SpiceLine Rser=0.01
SYMATTR InstName V5
SYMATTR Value 12
FLAG -32 272 0
FLAG 464 128 0
FLAG 1440 80 0
FLAG -384 256 0
FLAG -80 80 IN
FLAG 1216 32 OUT
TEXT -176 872 Left 0 !.tran 0 50m 0
TEXT 1568 -464 Left 0 !*//////////////////////////////////////////////////////////////////////\n* (C) National Semiconductor, Inc.\n* Models developed and under copyright by:\n* National Semiconductor, Inc.  \n \n*/////////////////////////////////////////////////////////////////////\n* Legal Notice: This material is intended for free software support.\n* The file may be copied, and distributed; however, reselling the \n*  material is illegal\n \n*////////////////////////////////////////////////////////////////////\n* For ordering or technical information on these models, contact:\n* National Semiconductor's Customer Response Center\n*                 7:00 A.M.--7:00 P.M.  U.S. Central Time\n*                                (800) 272-9959\n* For Applications support, contact the Internet address:\n*  amps-apps@galaxy.nsc.com\n \n* ///////////////////////////////////////////////////////////////////\n* User Notes:\n*\n* 1. Input resistance (Rin) for these JFET op amps is 1TOhm.  Rin is\n*    modeled by assuming the option GMIN=1TOhm.  If a different (non-\n*    default) GMIN value is needed, users may recalculate as follows:\n*    Rin=(R1||GMIN+R2||GMIN), where R1=R2,\n*    to maintain a consistent Rin model.\n \n* ///////////////////////////////////////////////////////////////////\n*//////////////////////////////////////////////////////////\n*LF411 LOW OFFSET, LOW DRIFT JFET INPUT OP-AMP MACRO-MODEL\n*//////////////////////////////////////////////////////////\n*\n* connections:    non-inverting input\n*                 |   inverting input\n*                 |   |   positive power supply\n*                 |   |   |   negative power supply\n*                 |   |   |   |   output\n*                 |   |   |   |   |\n*                 |   |   |   |   |\n.SUBCKT LF411  1   2  99  50  28\n*\n*Features:\n*Fast settling time (.01%) =           2uS\n*High bandwidth =                     3MHz\n*High slew rate =                   10V/uS\n*Low offset voltage =                 .5mV\n*Low supply current =                1.8mA\n*\n****************INPUT STAGE************** \n*\nIOS 2 1 25.0P\n*^Input offset current\nCI1 1 0 3P\nCI2 2 0 3P\nR1 1 3 1E12\nR2 3 2 1E12\nI1 99 4 1.0M\nJ1 5 2 4 JX\nJ2 6 7 4 JX\nR3 5 50 650\nR4 6 50 650\n*Fp2=28 MHZ\nC4 5 6 4.372P \n*\n***********COMMON MODE EFFECT***********\n*\nI2 99 50 800UA\n*^Quiescent supply current\nEOS 7 1 POLY(1) 16 49 .8E-3 1\n*Input offset voltage.^\nR8 99 49 80K\nR9 49 50 80K\n*\n*********OUTPUT VOLTAGE LIMITING********\nV2 99 8 2.13\nD1 9 8 DX\nD2 10 9 DX\nV3 10 50 2.13\n*\n**************SECOND STAGE**************\n*\nEH 99 98 99 49 1\nG1 98 9 5 6 20E-3\nR5 98 9 10MEG\nVA3 9 11 0\n*Fp1=18 HZ\nC3 98 11 857.516P\n*\n***************POLE STAGE***************\n*\n*Fp=30 MHz\nG3 98 15 9 49 1E-6\nR12 98 15 1MEG\nC5 98 15 5.305E-15\n*\n*********COMMON-MODE ZERO STAGE*********\n*\nG4 98 16 3 49 1E-8\nL2 98 17 144.7M\nR13 17 16 1K\n*\n**************OUTPUT STAGE**************\n*\nF6  99 50 VA7 1\nF5  99 23 VA8 1\nD5  21 23 DX\nVA7 99 21 0\nD6  23 99 DX\nE1  99 26 99 15 1\nVA8 26 27 0\nR16 27 28 50\nV5  28 25 0.646V\nD4  25 15 DX\nV4  24 28 0.646V\nD3  15 24 DX\n*\n***************MODELS USED**************\n*\n.MODEL DX D(IS=1E-15)\n.MODEL JX PJF(BETA=1.183E-3 VTO=-.65 IS=50E-12)\n*\n.ENDS\n*$