Version 4 SHEET 1 952 680 WIRE 768 -288 -64 -288 WIRE -64 -192 -64 -288 WIRE 336 -192 240 -192 WIRE 432 -192 400 -192 WIRE 80 -176 -16 -176 WIRE 32 -160 32 -208 WIRE 624 -160 624 -240 WIRE -16 -144 -16 -176 WIRE 0 -144 -16 -144 WIRE 304 -144 304 -208 WIRE 512 -144 464 -144 WIRE 592 -144 512 -144 WIRE 80 -128 80 -176 WIRE 80 -128 64 -128 WIRE 240 -128 240 -192 WIRE 240 -128 160 -128 WIRE 272 -128 240 -128 WIRE 768 -128 768 -288 WIRE 768 -128 656 -128 WIRE 0 -112 -16 -112 WIRE 432 -112 432 -192 WIRE 432 -112 336 -112 WIRE 464 -112 432 -112 WIRE 576 -112 544 -112 WIRE 592 -112 576 -112 WIRE 208 -96 192 -96 WIRE 272 -96 208 -96 WIRE 32 -80 32 -96 WIRE 576 -64 576 -112 WIRE 672 -64 576 -64 WIRE 768 -64 768 -128 WIRE 768 -64 752 -64 WIRE 304 -48 304 -80 WIRE 624 -48 624 -96 WIRE -16 -32 -16 -112 WIRE -16 -32 -64 -32 WIRE 32 0 32 -16 WIRE 160 0 160 -16 WIRE 32 32 32 0 WIRE 160 32 160 0 WIRE -64 96 -64 48 WIRE 32 128 32 112 WIRE 160 128 160 112 WIRE -64 144 -64 96 FLAG 304 -48 0 FLAG 304 -208 5V FLAG 208 -96 2.5V FLAG 624 -48 0 FLAG 624 -240 5V FLAG 32 -80 0 FLAG 32 -208 5V FLAG -64 96 2.5V FLAG 32 128 0 FLAG 160 128 0 FLAG 32 0 2.5V FLAG 160 0 5V FLAG 512 -144 2.5V SYMBOL cap 400 -208 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 1µF SYMBOL res 176 -144 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 2.5k SYMBOL res 560 -128 R90 WINDOW 0 92 53 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL res 768 -80 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 20k SYMBOL res -48 -96 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R5 SYMATTR Value 1R SYMBOL res -48 -16 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL voltage 32 16 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 2.5V SYMBOL voltage 160 16 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 5V SYMBOL Opamps\\LT1797 32 -192 R0 WINDOW 3 23 -13 Left 2 SYMATTR InstName U1 SYMBOL Opamps\\LT1797 304 -176 R0 SYMATTR InstName U2 SYMBOL Opamps\\LT1797 624 -192 R0 WINDOW 3 51 45 Left 2 SYMATTR InstName U3 SYMBOL res -48 64 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R6 SYMATTR Value 100R TEXT 320 88 Left 2 !.tran 0 10s 0