Version 4
SHEET 1 1784 824
WIRE 192 176 128 176
WIRE 320 176 256 176
WIRE 0 288 -64 288
WIRE 128 288 128 176
WIRE 128 288 80 288
WIRE 192 288 128 288
WIRE 320 288 320 176
WIRE 320 288 272 288
WIRE -64 304 -64 288
WIRE -672 320 -672 304
WIRE 128 400 128 288
WIRE 160 400 128 400
WIRE -672 416 -672 400
WIRE -672 416 -752 416
WIRE 320 416 320 288
WIRE 320 416 224 416
WIRE 416 416 320 416
WIRE -752 432 -752 416
WIRE -672 432 -672 416
WIRE -208 432 -336 432
WIRE -64 432 -128 432
WIRE 96 432 -64 432
WIRE 128 432 96 432
WIRE 160 432 128 432
WIRE -64 448 -64 432
WIRE 416 448 416 416
WIRE 192 480 192 448
WIRE -64 544 -64 512
WIRE 96 544 96 512
WIRE 416 544 416 528
FLAG -752 432 0
FLAG -672 304 V+
FLAG 192 384 V+
FLAG -64 304 0
FLAG -336 512 0
FLAG -64 544 0
FLAG 416 544 0
FLAG -672 512 V-
FLAG 192 480 V-
FLAG 96 544 0
FLAG 128 432 IN
FLAG 416 416 OUT
SYMBOL voltage -672 304 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 96 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 15K
SYMBOL res 288 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL voltage -336 416 R0
WINDOW 0 -20 -10 Left 2
WINDOW 3 -220 128 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 5 0 0 0 0.001s 0.002s 1000)
SYMATTR Value2 AC 1
SYMBOL Opamps/LT1115 192 352 R0
SYMATTR InstName U1
SYMBOL cap 192 192 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL cap -80 448 R0
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL res -112 416 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res 432 544 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL voltage -672 416 R0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL res 112 528 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R5
SYMATTR Value 1000K
TEXT -504 248 Left 2 !.TRAN 0 500ms
TEXT -504 208 Left 2 !.STEP PARAM C LIST 100n 10u