Version 4
SHEET 1 1192 1460
WIRE -928 208 -1024 208
WIRE -816 208 -928 208
WIRE -720 208 -816 208
WIRE -672 208 -720 208
WIRE -560 208 -592 208
WIRE -1216 224 -1232 224
WIRE -1200 224 -1216 224
WIRE -1120 224 -1136 224
WIRE -1104 224 -1120 224
WIRE -416 224 -432 224
WIRE -384 224 -416 224
WIRE -224 224 -288 224
WIRE -192 224 -224 224
WIRE -80 224 -192 224
WIRE 16 224 -80 224
WIRE 64 224 16 224
WIRE 176 224 144 224
WIRE -1232 256 -1232 224
WIRE -1136 256 -1136 224
WIRE -384 256 -432 256
WIRE -656 288 -672 288
WIRE -640 288 -656 288
WIRE -384 288 -400 288
WIRE -256 288 -288 288
WIRE -240 288 -256 288
WIRE -640 304 -640 288
WIRE 80 304 64 304
WIRE 96 304 80 304
WIRE -720 320 -720 208
WIRE -672 320 -720 320
WIRE 96 320 96 304
WIRE -560 336 -560 208
WIRE -560 336 -608 336
WIRE 16 336 16 224
WIRE 64 336 16 336
WIRE -672 352 -720 352
WIRE 176 352 176 224
WIRE 176 352 128 352
WIRE -1232 368 -1232 336
WIRE -1136 368 -1136 336
WIRE -400 368 -400 288
WIRE -224 368 -224 224
WIRE -224 368 -400 368
WIRE 64 368 16 368
WIRE -656 400 -672 400
WIRE -640 400 -640 368
WIRE -640 400 -656 400
WIRE -1024 416 -1024 208
WIRE -928 416 -928 208
WIRE 80 416 64 416
WIRE 96 416 96 384
WIRE 96 416 80 416
WIRE -816 432 -816 208
WIRE -192 432 -192 224
WIRE -432 448 -432 256
WIRE -80 448 -80 224
WIRE -720 464 -720 352
WIRE -688 464 -720 464
WIRE -560 464 -560 336
WIRE -560 464 -608 464
WIRE 16 480 16 368
WIRE 48 480 16 480
WIRE 176 480 176 352
WIRE 176 480 128 480
WIRE -720 496 -720 464
WIRE 16 512 16 480
WIRE -720 592 -720 576
WIRE 16 608 16 592
WIRE -1024 720 -1024 496
WIRE -928 720 -928 496
WIRE -928 720 -1024 720
WIRE -816 720 -816 496
WIRE -816 720 -928 720
WIRE -720 720 -720 672
WIRE -720 720 -816 720
WIRE -432 736 -432 528
WIRE -192 736 -192 512
WIRE -192 736 -432 736
WIRE -80 736 -80 512
WIRE -80 736 -192 736
WIRE 16 736 16 688
WIRE 16 736 -80 736
WIRE -816 752 -816 720
WIRE -80 768 -80 736
FLAG -1232 368 0
FLAG -1136 368 0
FLAG -1216 224 Vee
FLAG -1120 224 Vcc
FLAG -80 768 0
FLAG -80 224 V.
FLAG 80 304 Vcc
FLAG 80 416 Vee
FLAG -416 224 Vcc
FLAG -256 288 Vee
FLAG -816 752 0
FLAG -816 208 V
FLAG -656 288 Vcc
FLAG -656 400 Vee
SYMBOL voltage -1136 240 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -1232 352 R180
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL cap -96 448 R0
SYMATTR InstName C.
SYMATTR Value 1uF
SYMBOL ind -208 416 R0
SYMATTR InstName L.
SYMATTR Value 1H
SYMATTR SpiceLine Rser=200
SYMBOL Opamps\\UniversalOpamp2 96 352 R0
SYMATTR InstName U3
SYMBOL res 48 240 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1.
SYMATTR Value 2k
SYMBOL res 144 464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2.
SYMATTR Value 5k
SYMBOL res 0 496 R0
SYMATTR InstName R3.
SYMATTR Value 1k
SYMBOL voltage 16 592 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 4
SYMBOL AutoGenerated\\AD844 -336 256 M180
SYMATTR InstName U1
SYMBOL res -448 432 R0
SYMATTR InstName R.
SYMATTR Value 1k
SYMBOL cap -832 432 R0
SYMATTR InstName C
SYMATTR Value 1uF
SYMBOL ind -944 400 R0
SYMATTR InstName L
SYMATTR Value 1H
SYMATTR SpiceLine Rser=200
SYMBOL Opamps\\UniversalOpamp2 -640 336 R0
SYMATTR InstName U
SYMBOL res -688 224 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 2k
SYMBOL res -592 448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 4k
SYMBOL res -736 480 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL voltage -720 576 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V
SYMATTR Value 4V
SYMBOL res -1040 400 R0
SYMATTR InstName R
SYMATTR Value -1k
TEXT -1336 496 Left 2 !.tran 0 2 0.5 0.01m
TEXT -1336 432 Left 2 !.ic V(V)=0.01
TEXT -1336 464 Left 2 !.ic V(V.)=0.01
TEXT -1320 800 Left 2 ;SPICE model for AD844 can be downloaded here: https://www.analog.com/en/products/ad844.html