Version 4 SHEET 1 880 680 WIRE 288 -112 112 -112 WIRE 400 -112 368 -112 WIRE 240 -48 240 -64 WIRE 112 -32 112 -112 WIRE 208 -32 112 -32 WIRE 400 -16 400 -112 WIRE 400 -16 272 -16 WIRE 464 -16 400 -16 WIRE -48 0 -96 0 WIRE 176 0 32 0 WIRE 208 0 176 0 WIRE -176 16 -176 -32 WIRE 112 32 112 -32 WIRE 240 32 240 16 WIRE 176 96 176 0 WIRE 288 96 176 96 WIRE 400 96 400 -16 WIRE 400 96 368 96 WIRE 464 96 464 -16 WIRE -176 128 -176 96 WIRE -144 128 -176 128 WIRE 112 144 112 112 WIRE 112 144 64 144 WIRE -144 160 -144 128 WIRE -96 176 -96 0 WIRE -48 176 -96 176 WIRE 400 176 32 176 WIRE 288 224 112 224 WIRE 400 224 400 176 WIRE 400 224 368 224 WIRE -176 240 -176 128 WIRE -96 240 -96 176 WIRE 240 288 240 272 WIRE 112 304 112 224 WIRE 208 304 112 304 WIRE 400 320 400 224 WIRE 400 320 272 320 WIRE 464 320 464 176 WIRE 464 320 400 320 WIRE 208 336 176 336 WIRE -176 368 -176 320 WIRE -96 368 -96 304 WIRE 240 368 240 352 WIRE 112 384 112 304 WIRE 176 496 176 336 WIRE 64 512 64 144 WIRE 112 512 112 464 WIRE 112 512 64 512 FLAG -144 160 0 FLAG -176 -32 Vcc FLAG 240 -64 Vcc FLAG 240 272 Vcc FLAG 464 -16 Vop FLAG 464 320 Von FLAG -176 368 Vee FLAG -96 0 Vin FLAG 240 32 Vee FLAG 240 368 Vee FLAG -96 368 0 FLAG 176 496 0 SYMBOL res 96 16 R0 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL res 384 -128 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 100k SYMBOL res 384 208 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 100k SYMBOL res 96 368 R0 SYMATTR InstName R4 SYMATTR Value 1k SYMBOL Misc\\battery -176 0 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 2.5 SYMBOL res 448 80 R0 SYMATTR InstName R5 SYMATTR Value 1k SYMBOL Misc\\battery -176 224 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value 2.5 SYMBOL res 48 -16 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 10k SYMBOL res 384 80 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 100k SYMBOL cap -112 240 R0 SYMATTR InstName C1 SYMATTR Value 10n SYMBOL res 48 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 10k SYMBOL Opamps\\LT1797 240 -80 R0 SYMATTR InstName U3 SYMBOL Opamps\\LT1797 240 256 R0 SYMATTR InstName U1 TEXT -160 408 Left 2 !.tran 0 5m 0 10u TEXT -40 -56 Left 2 !.IC V(Vin)=0V