Version 4
SHEET 1 2132 1028
WIRE 960 -976 -528 -976
WIRE 320 -912 304 -912
WIRE 416 -912 384 -912
WIRE -624 -832 -624 -912
WIRE -528 -832 -528 -976
WIRE 304 -832 304 -912
WIRE 416 -832 416 -912
WIRE 416 -832 400 -832
WIRE 496 -832 416 -832
WIRE 384 -768 384 -784
WIRE 448 -768 384 -768
WIRE -624 -736 -624 -752
WIRE 304 -704 304 -832
WIRE 352 -704 304 -704
WIRE -560 -640 -576 -640
WIRE -528 -640 -528 -768
WIRE -528 -640 -560 -640
WIRE -400 -640 -528 -640
WIRE -32 -640 -304 -640
WIRE 304 -640 304 -704
WIRE 304 -640 -32 -640
WIRE 416 -640 416 -704
WIRE 416 -640 400 -640
WIRE 496 -640 496 -832
WIRE 496 -640 416 -640
WIRE 720 -640 496 -640
WIRE 816 -640 800 -640
WIRE 960 -640 960 -976
WIRE 960 -640 816 -640
WIRE 1024 -640 960 -640
WIRE 1152 -640 1024 -640
WIRE 1312 -640 1152 -640
WIRE 720 -608 720 -640
WIRE 1312 -608 1312 -640
WIRE 1024 -592 1024 -640
WIRE 1152 -592 1152 -640
WIRE 384 -576 384 -592
WIRE 448 -576 448 -768
WIRE 448 -576 384 -576
WIRE -528 -544 -528 -640
WIRE -496 -544 -528 -544
WIRE -352 -544 -352 -576
WIRE -352 -544 -416 -544
WIRE -160 -544 -352 -544
WIRE -160 -512 -160 -544
WIRE -32 -512 -32 -640
WIRE -32 -512 -64 -512
WIRE 384 -512 384 -576
WIRE 416 -512 384 -512
WIRE 480 -512 464 -512
WIRE 512 -512 480 -512
WIRE 816 -512 816 -640
WIRE 816 -512 752 -512
WIRE -560 -496 -560 -640
WIRE 384 -496 384 -512
WIRE 752 -496 752 -512
WIRE 1024 -496 1024 -528
WIRE 1152 -496 1152 -528
WIRE 1312 -496 1312 -528
WIRE -560 -400 -560 -432
WIRE 384 -400 384 -416
WIRE 384 -400 304 -400
WIRE 464 -400 384 -400
WIRE 752 -384 752 -416
WIRE 864 -384 752 -384
WIRE 304 -368 304 -400
WIRE 384 -368 384 -400
WIRE 464 -368 464 -400
WIRE 864 -352 864 -384
WIRE 720 -336 720 -528
WIRE 752 -336 752 -384
WIRE 304 -256 304 -288
WIRE 368 -256 368 -304
WIRE 368 -256 304 -256
WIRE 400 -256 400 -304
WIRE 464 -256 464 -304
WIRE 464 -256 400 -256
WIRE 368 -240 368 -256
WIRE 736 -240 736 -272
WIRE 864 -240 864 -272
WIRE 864 -240 736 -240
WIRE -608 -160 -608 -208
WIRE -480 -160 -480 -208
WIRE -112 -144 -112 -448
WIRE -64 -144 -112 -144
WIRE 112 -144 0 -144
WIRE 368 -144 368 -160
WIRE 960 -144 960 -640
WIRE 400 -112 400 -256
WIRE 544 -112 400 -112
WIRE 736 -112 736 -240
WIRE 736 -112 624 -112
WIRE -608 -48 -608 -80
WIRE -480 -48 -480 -80
WIRE 112 -32 112 -144
WIRE 112 -32 64 -32
WIRE 960 -32 960 -64
WIRE 960 -32 112 -32
WIRE -112 -16 -112 -144
WIRE 0 -16 -112 -16
WIRE 960 -16 960 -32
WIRE 160 0 64 0
WIRE 960 80 960 64
FLAG 512 -512 0
FLAG -480 -208 DAC_A
IOPIN -480 -208 Out
FLAG -624 -912 30V
IOPIN -624 -912 Out
FLAG -576 -640 30V
IOPIN -576 -640 In
FLAG -624 -736 0
FLAG -480 -48 0
FLAG 368 -144 DAC_A
IOPIN 368 -144 In
FLAG 960 80 0
FLAG -608 -208 DAC_V
IOPIN -608 -208 Out
FLAG -608 -48 0
FLAG 160 0 DAC_V
IOPIN 160 0 In
FLAG 1024 -496 0
FLAG 1152 -496 0
FLAG -560 -400 0
FLAG 1312 -496 0
SYMBOL res 704 -624 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 100m
SYMBOL nmos 304 -592 R270
WINDOW 3 -39 -26 Left 2
SYMATTR InstName M1
SYMATTR Value SUP90N08-8m2P
SYMBOL Opamps\\opamp 800 -304 R90
SYMATTR InstName U1
SYMBOL Opamps\\opamp 448 -336 M270
SYMATTR InstName U2
SYMBOL res 528 -96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 15k
SYMBOL res 368 -512 R0
SYMATTR InstName R3
SYMATTR Value 100
SYMBOL res 848 -368 R0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL res 736 -512 R0
SYMATTR InstName R6
SYMATTR Value 11.5K
SYMBOL res 736 -624 M0
SYMATTR InstName R7
SYMATTR Value 15k
SYMBOL zener 480 -496 M270
WINDOW 0 36 32 VTop 2
WINDOW 3 -2 -44 VBottom 2
SYMATTR InstName D1
SYMATTR Value BZX84C6V2L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage -624 -848 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 30
SYMBOL voltage -480 -176 R0
WINDOW 3 24 44 Left 2
WINDOW 123 24 72 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value 5
SYMATTR InstName V2
SYMBOL res 384 -144 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 15k
SYMBOL diode 416 -720 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMBOL res 288 -384 R0
WINDOW 0 -41 28 Left 2
WINDOW 3 -96 64 Left 2
SYMATTR InstName R
SYMATTR Value 100Mega
SYMBOL cap 448 -368 R0
SYMATTR InstName C1
SYMATTR Value 22p
SYMBOL nmos 304 -784 R270
WINDOW 3 -9 -27 Left 2
SYMATTR InstName M2
SYMATTR Value SUP90N08-8m2P
SYMBOL diode 384 -928 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMBOL pnp -304 -576 M270
SYMATTR InstName Q1
SYMBOL npn -160 -448 R270
SYMATTR InstName Q2
SYMBOL res -400 -560 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL Opamps\\opamp 32 -80 M0
SYMATTR InstName U3
SYMBOL res 944 -32 R0
SYMATTR InstName R10
SYMATTR Value 560
SYMBOL res 944 -160 R0
SYMATTR InstName R11
SYMATTR Value 4.7k
SYMBOL diode -544 -832 R0
SYMATTR InstName D4
SYMBOL voltage -608 -176 R0
WINDOW 3 24 44 Left 2
WINDOW 123 24 72 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value 2.12
SYMATTR InstName V3
SYMBOL cap 1008 -592 R0
SYMATTR InstName C2
SYMATTR Value 100µ
SYMBOL diode 1168 -528 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D5
SYMBOL cap -576 -496 R0
SYMATTR InstName C3
SYMATTR Value 100µ
SYMBOL res 1296 -624 R0
SYMATTR InstName R_L
SYMATTR Value 500
SYMBOL cap -64 -160 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 100p
TEXT -360 -72 Left 2 !.tran 1s
TEXT -360 -32 Left 2 !.lib opamp.sub