Version 4 SHEET 1 1192 836 WIRE -272 -336 -368 -336 WIRE -160 -336 -272 -336 WIRE 0 -336 -160 -336 WIRE 48 -336 0 -336 WIRE -688 -320 -704 -320 WIRE -672 -320 -688 -320 WIRE -592 -320 -608 -320 WIRE -576 -320 -592 -320 WIRE -704 -288 -704 -320 WIRE -608 -288 -608 -320 WIRE -368 -272 -368 -336 WIRE -160 -272 -160 -336 WIRE 0 -272 0 -336 WIRE -272 -256 -272 -336 WIRE 48 -256 48 -336 WIRE -704 -176 -704 -208 WIRE -608 -176 -608 -208 WIRE -368 -112 -368 -192 WIRE -272 -112 -272 -192 WIRE -272 -112 -368 -112 WIRE -160 -112 -160 -192 WIRE -160 -112 -272 -112 WIRE 0 -112 0 -192 WIRE 0 -112 -160 -112 WIRE 48 -112 48 -208 WIRE 48 -112 0 -112 WIRE -272 -96 -272 -112 WIRE -320 0 -576 0 WIRE -272 0 -320 0 WIRE -160 0 -272 0 WIRE 0 0 -160 0 WIRE 48 0 0 0 WIRE -576 64 -576 0 WIRE -480 64 -576 64 WIRE -368 64 -384 64 WIRE -160 64 -160 0 WIRE 0 64 0 0 WIRE -272 80 -272 0 WIRE 48 80 48 0 WIRE -480 96 -576 96 WIRE -320 96 -320 0 WIRE -320 96 -384 96 WIRE -576 128 -576 96 WIRE -480 128 -496 128 WIRE -320 128 -320 96 WIRE -320 128 -384 128 WIRE -272 224 -272 144 WIRE -160 224 -160 144 WIRE -160 224 -272 224 WIRE 0 224 0 144 WIRE 0 224 -160 224 WIRE 48 224 48 128 WIRE 48 224 0 224 WIRE -576 240 -576 208 WIRE -272 240 -272 224 FLAG -272 -96 0 FLAG -704 -176 0 FLAG -608 -176 0 FLAG -688 -320 Vee FLAG -592 -320 Vcc FLAG -496 128 Vcc FLAG -368 64 Vee FLAG -272 240 0 FLAG -272 0 V. FLAG -576 240 0 FLAG -272 -336 V SYMBOL sw 0 -176 R180 SYMATTR InstName S1 SYMATTR Value SBS SYMBOL cap -288 -256 R0 SYMATTR InstName C SYMATTR Value 0.1uF SYMBOL res -352 -176 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R SYMATTR Value -1.5k SYMBOL ind -176 -288 R0 SYMATTR InstName L SYMATTR Value 0.01H SYMATTR SpiceLine Rser=50 SYMBOL voltage -608 -304 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 15V SYMBOL voltage -704 -192 R180 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 15V SYMBOL AutoGenerated\\AD844 -432 96 R0 SYMATTR InstName U1 SYMBOL cap -288 80 R0 SYMATTR InstName C. SYMATTR Value 0.1uF SYMBOL ind -176 48 R0 SYMATTR InstName L. SYMATTR Value 0.01H SYMATTR SpiceLine Rser=50 SYMBOL sw 0 160 R180 SYMATTR InstName S2 SYMATTR Value SBS SYMBOL res -592 112 R0 SYMATTR InstName R. SYMATTR Value 1.5k TEXT -544 -464 Left 2 !.model SBS SW(Ron=1 Roff=1Meg Vt=2.01 Vh=2) TEXT -544 -440 Left 2 !.tran 0 300m 0 0.01m TEXT -752 -464 Left 2 !.ic V(V)=0.01 TEXT -752 -432 Left 2 !.ic V(V.)=0.01 TEXT -864 288 Left 2 ;SPICE model for AD844 can be downloaded here: https://www.analog.com/en/products/ad844.html