Version 4
SHEET 1 880 680
WIRE -96 0 -144 0
WIRE 32 0 -16 0
WIRE 96 0 32 0
WIRE 240 0 176 0
WIRE 112 112 112 80
WIRE 32 128 32 0
WIRE 80 128 32 128
WIRE 240 144 240 0
WIRE 240 144 144 144
WIRE 448 144 240 144
WIRE 80 160 -240 160
WIRE 448 176 448 144
WIRE -240 192 -240 160
WIRE 112 208 112 176
WIRE -240 304 -240 272
WIRE 448 304 448 256
WIRE 112 336 112 304
WIRE 240 336 240 304
WIRE 112 448 112 416
WIRE 240 448 240 416
FLAG 112 80 +V
FLAG 112 208 -V
FLAG -240 304 0
FLAG -144 0 0
FLAG 448 304 0
FLAG 112 448 0
FLAG 240 448 0
FLAG 112 304 -V
FLAG 240 304 +V
FLAG -240 160 in
FLAG 448 144 out
FLAG 32 0 inm
SYMBOL Opamps\\opamp2 112 80 R0
SYMATTR InstName U1
SYMATTR Value LM675
SYMBOL res 80 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 9k
SYMBOL res -112 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 432 160 R0
SYMATTR InstName Rlast
SYMATTR Value 10
SYMBOL voltage -240 176 R0
WINDOW 3 -69 176 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 1 0 0.1u 0.1u 24.9u 50u)
SYMBOL voltage 112 320 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage 240 320 R0
SYMATTR InstName V3
SYMATTR Value 15
TEXT -296 -176 Left 2 !.inc LM675.sub
TEXT -296 -104 Left 2 !.options plotwinsize=0
TEXT -296 -136 Left 2 !.tran 50u