Version 4
SHEET 1 880 680
WIRE 592 -224 592 -240
WIRE 448 -128 416 -128
WIRE 704 -128 528 -128
WIRE 592 -64 592 -144
WIRE 288 -48 64 -48
WIRE 416 -48 416 -128
WIRE 416 -48 368 -48
WIRE 560 -48 416 -48
WIRE 704 -32 704 -128
WIRE 704 -32 624 -32
WIRE 784 -32 704 -32
WIRE 560 -16 512 -16
WIRE 592 64 592 0
WIRE 64 112 64 -48
WIRE 512 160 512 -16
WIRE 592 160 592 144
WIRE 64 224 64 192
FLAG 64 224 0
FLAG 592 160 0
FLAG 592 -240 0
FLAG 512 160 0
SYMBOL voltage 64 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vpulse
SYMATTR Value PULSE(0 -15 100n 1u 150u 0.5u 0 1)
SYMBOL Opamps\\LT1125 592 -96 R0
SYMATTR InstName U1
SYMBOL voltage 592 48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vopamp1
SYMATTR Value -15
SYMBOL voltage 592 -128 R180
WINDOW 0 -141 86 Left 2
WINDOW 3 -46 15 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vopamp2
SYMATTR Value 15
SYMBOL res 272 -64 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL res 432 -144 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
TEXT 30 248 Left 2 !.tran 200u