Version 4 SHEET 1 996 680 WIRE 720 16 384 16 WIRE 720 48 720 16 WIRE -64 80 -96 80 WIRE 32 80 -64 80 WIRE 192 80 112 80 WIRE 288 80 192 80 WIRE 192 96 192 80 WIRE 416 112 320 112 WIRE 528 112 496 112 WIRE -96 144 -96 80 WIRE 384 144 384 16 WIRE 320 160 320 112 WIRE 352 160 320 160 WIRE 528 176 528 112 WIRE 528 176 416 176 WIRE 640 176 528 176 WIRE 720 176 720 128 WIRE 720 176 672 176 WIRE 288 192 288 80 WIRE 352 192 288 192 WIRE 640 208 640 176 WIRE 720 208 720 176 WIRE -96 304 -96 224 WIRE -64 304 -96 304 WIRE 32 304 -64 304 WIRE 320 304 320 160 WIRE 320 304 112 304 WIRE 192 320 192 176 WIRE 640 320 640 288 WIRE 640 320 192 320 WIRE 672 320 672 176 WIRE 672 320 640 320 WIRE 192 352 192 320 WIRE 384 352 384 208 WIRE 720 352 720 288 WIRE 720 352 384 352 FLAG 192 352 0 FLAG -64 80 in+ FLAG -64 304 in- FLAG 640 176 out SYMBOL res 128 64 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 130k SYMBOL res 208 192 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R2 SYMATTR Value 1000 SYMBOL res 128 288 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 130k SYMBOL res 400 128 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 1000 SYMBOL voltage 720 32 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL voltage 720 192 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 5 SYMBOL voltage -96 128 R0 WINDOW 3 -349 202 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value PULSE(-4 300 100u 40n 40n 5u 50u 5000) SYMATTR InstName V3 SYMBOL res 656 304 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R5 SYMATTR Value 1k SYMBOL Opamps\\LT1630 384 112 R0 SYMATTR InstName U1 TEXT -136 368 Left 2 !.tran 100m startup