Version 4
SHEET 1 928 1032
WIRE -144 304 -240 304
WIRE -32 304 -64 304
WIRE -16 304 -32 304
WIRE 528 304 64 304
WIRE -240 320 -240 304
WIRE -32 384 -32 304
WIRE 64 384 -32 384
WIRE 176 384 128 384
WIRE -512 400 -512 384
WIRE -400 400 -400 384
WIRE -240 416 -240 400
WIRE -512 496 -512 480
WIRE -400 496 -400 480
WIRE -32 512 -32 384
WIRE 48 512 -32 512
WIRE 176 528 176 384
WIRE 176 528 144 528
WIRE 272 528 176 528
WIRE 48 544 -272 544
WIRE -272 560 -272 544
WIRE 528 576 528 304
WIRE 528 576 384 576
WIRE 272 592 272 528
WIRE -272 656 -272 640
WIRE 384 656 384 576
WIRE 416 656 384 656
WIRE 528 672 528 576
WIRE 528 672 512 672
WIRE 272 688 272 672
WIRE 416 688 272 688
WIRE 272 704 272 688
WIRE 272 800 272 784
FLAG -512 496 0
FLAG -400 496 0
FLAG -272 656 0
FLAG -272 544 DAC_OUT
FLAG 272 528 OUT
FLAG 80 480 +V
FLAG -512 384 +V
FLAG -400 384 -V
FLAG 272 800 0
FLAG -240 416 0
FLAG -240 304 REF
FLAG 80 576 -V
FLAG 448 624 +V
FLAG 448 720 -V
SYMBOL voltage -512 384 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -400 384 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage -272 544 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 2.5 20u 170n 170n 1m 2m)
SYMBOL res 80 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res -48 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL res 256 576 R0
SYMATTR InstName R3
SYMATTR Value 30K
SYMBOL res 256 688 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL cap 128 368 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL voltage -240 304 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 2.5
SYMBOL LT6020 96 528 R0
SYMATTR InstName U1
SYMBOL LT6020 464 672 R0
SYMATTR InstName U2
TEXT 448 784 Left 2 !.tran 200u