Version 4
SHEET 1 880 680
WIRE 192 -16 176 -16
WIRE 304 -16 288 -16
WIRE 176 0 176 -16
WIRE 288 0 288 -16
WIRE 464 80 432 80
WIRE 560 80 528 80
WIRE 240 160 224 160
WIRE 224 176 224 160
WIRE 512 176 496 176
WIRE 192 192 160 192
WIRE 496 192 496 176
WIRE 288 208 256 208
WIRE 320 208 288 208
WIRE 432 208 432 80
WIRE 432 208 400 208
WIRE 464 208 432 208
WIRE 192 224 144 224
WIRE 560 224 560 80
WIRE 560 224 528 224
WIRE 464 240 432 240
WIRE 144 256 144 224
WIRE 144 304 144 256
WIRE 176 304 144 304
WIRE 288 304 288 208
WIRE 288 304 256 304
WIRE 320 352 304 352
WIRE 416 352 400 352
WIRE 144 400 144 304
WIRE 304 400 304 352
WIRE 304 400 144 400
WIRE 416 400 416 352
WIRE 528 400 416 400
WIRE 560 400 560 224
WIRE 560 400 528 400
WIRE 304 448 304 400
WIRE 320 448 304 448
WIRE 416 448 416 400
WIRE 416 448 400 448
FLAG 224 240 0
FLAG 224 160 VCC
FLAG 496 256 0
FLAG 496 176 VCC
FLAG 432 240 ref
FLAG 160 192 ref
FLAG 176 80 0
FLAG 288 80 0
FLAG 176 -16 VCC
FLAG 288 -16 ref
FLAG 528 400 trg
FLAG 288 208 sqr
FLAG 144 256 niv
SYMBOL Opamps\\UniversalOpamp2 224 208 R0
SYMATTR InstName U1
SYMBOL Opamps\\UniversalOpamp2 496 224 R0
SYMATTR InstName U2
SYMBOL res 272 288 R90
WINDOW 0 5 56 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 416 192 R90
WINDOW 0 5 56 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 2.2k
SYMBOL cap 528 64 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 0.1u
SYMBOL res 416 336 R90
WINDOW 0 5 56 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 416 432 R90
WINDOW 0 5 56 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL voltage 176 -16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5V
SYMBOL voltage 288 -16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 2.5V
TEXT 368 -8 Left 0 !.tran 0 10ms 5ms