Version 4 SHEET 1 880 680 WIRE -96 32 -96 16 WIRE 192 32 160 32 WIRE 288 32 272 32 WIRE 320 32 288 32 WIRE 432 32 400 32 WIRE -96 128 -96 112 WIRE 352 144 352 128 WIRE 288 160 288 32 WIRE 320 160 288 160 WIRE 432 176 432 32 WIRE 432 176 384 176 WIRE 480 176 432 176 WIRE 112 192 48 192 WIRE 320 192 192 192 WIRE -96 208 -96 192 WIRE 48 208 48 192 WIRE 352 224 352 208 WIRE -96 304 -96 288 WIRE 48 304 48 288 FLAG 352 224 V- FLAG 352 128 V+ FLAG -96 304 0 FLAG -96 128 0 FLAG 48 304 0 FLAG 160 32 0 FLAG -96 16 V+ FLAG -96 192 V- FLAG 48 192 in FLAG 480 176 out IOPIN 480 176 Out SYMBOL voltage 48 192 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value PULSE(0 1 0 .1u .1u 50u 100u) SYMBOL voltage -96 16 R0 SYMATTR InstName V2 SYMATTR Value 15 SYMBOL voltage -96 192 R0 SYMATTR InstName V3 SYMATTR Value -15 SYMBOL res 176 48 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R1 SYMATTR Value 1.2k SYMBOL res 304 48 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R2 SYMATTR Value 4.7k SYMBOL res 96 208 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R3 SYMATTR Value 1k SYMBOL Robertugo\\opamp5 352 112 R0 SYMATTR InstName U1 SYMATTR SpiceModel LM833 TEXT -136 -112 Left 0 !.tran 0 200u 0 .1u TEXT -136 -72 Left 0 !.options plotwinsize=0 TEXT 56 -152 Left 0 ;Model from Onsemi