Version 4
SHEET 1 880 680
WIRE 112 -64 64 -64
WIRE 224 -64 176 -64
WIRE -48 32 -80 32
WIRE 64 32 64 -64
WIRE 64 32 32 32
WIRE 96 32 64 32
WIRE 224 32 224 -64
WIRE 224 32 176 32
WIRE 544 32 384 32
WIRE 672 32 544 32
WIRE -80 64 -80 32
WIRE 384 64 384 32
WIRE 608 128 608 112
WIRE 144 144 144 128
WIRE 544 144 544 32
WIRE 576 144 544 144
WIRE -16 160 -32 160
WIRE 64 160 64 32
WIRE 64 160 48 160
WIRE 112 160 64 160
WIRE 672 160 672 32
WIRE 672 160 640 160
WIRE 736 160 672 160
WIRE 768 160 736 160
WIRE 224 176 224 32
WIRE 224 176 176 176
WIRE 256 176 224 176
WIRE 288 176 256 176
WIRE 384 176 384 144
WIRE 384 176 352 176
WIRE 432 176 384 176
WIRE 512 176 496 176
WIRE 576 176 512 176
WIRE -272 192 -320 192
WIRE -144 192 -192 192
WIRE -32 192 -32 160
WIRE -32 192 -80 192
WIRE 64 192 -32 192
WIRE 112 192 64 192
WIRE 608 208 608 192
WIRE 736 208 736 160
WIRE -320 224 -320 192
WIRE 64 224 64 192
WIRE 144 224 144 208
WIRE 224 224 224 176
WIRE 512 224 512 176
WIRE -320 336 -320 304
WIRE 64 336 64 304
WIRE 224 336 224 304
WIRE 512 336 512 304
WIRE 736 336 736 288
WIRE 64 464 64 432
WIRE 224 464 224 432
WIRE 64 576 64 544
WIRE 224 576 224 544
FLAG 224 336 0
FLAG -320 336 0
FLAG -80 64 0
FLAG 144 128 +V
FLAG 608 112 +V
FLAG 144 224 -V
FLAG 608 208 -V
FLAG 512 336 0
FLAG 64 336 0
FLAG 736 336 0
FLAG 64 576 0
FLAG 224 576 0
FLAG 64 432 +V
FLAG 224 432 -V
FLAG -320 192 in
FLAG 768 160 out
IOPIN 768 160 Out
FLAG 256 176 o1
SYMBOL Opamps\\UniversalOpamp2 144 176 R0
SYMATTR InstName U1
SYMBOL Opamps\\UniversalOpamp2 608 160 R0
SYMATTR InstName U2
SYMBOL res 80 48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 22k
SYMBOL res 48 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 208 208 R0
SYMATTR InstName R6
SYMATTR Value 47k
SYMBOL cap -16 176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 -26 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL res -288 208 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName RG
SYMATTR Value 100
SYMBOL voltage -320 208 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 0
SYMATTR Value2 AC 1
SYMBOL cap 288 192 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 0.1µ
SYMBOL cap 432 192 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value 0.1µ
SYMBOL res 368 48 R0
SYMATTR InstName R3
SYMATTR Value 18k
SYMBOL res 496 208 R0
SYMATTR InstName R4
SYMATTR Value 180k
SYMBOL res 48 208 R0
SYMATTR InstName R5
SYMATTR Value 220k
SYMBOL cap -144 208 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL res 720 192 R0
SYMATTR InstName RL
SYMATTR Value 10k
SYMBOL cap 112 -48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C5
SYMATTR Value 100p
SYMBOL voltage 64 448 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage 224 448 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value -15
TEXT -306 440 Left 2 !.ac dec 100 1 300
CIRCLE Normal -48 256 -176 128 2