Version 4
SHEET 1 1076 680
WIRE 240 -256 -48 -256
WIRE 240 -224 240 -256
WIRE 784 -192 544 -192
WIRE 544 -96 544 -192
WIRE 592 -96 544 -96
WIRE 784 -80 784 -192
WIRE 784 -80 656 -80
WIRE 288 -64 80 -64
WIRE 416 -64 352 -64
WIRE 544 -64 480 -64
WIRE 592 -64 544 -64
WIRE 624 -16 624 -48
WIRE 416 64 416 -64
WIRE 592 64 416 64
WIRE 784 64 784 -80
WIRE 784 64 672 64
WIRE -48 96 -48 -256
WIRE 544 96 544 -64
WIRE -48 128 -48 96
WIRE 80 128 80 -64
WIRE 240 192 240 -144
WIRE 240 192 160 192
WIRE 544 192 544 176
WIRE 544 192 240 192
WIRE 240 208 240 192
WIRE 784 208 784 64
WIRE 160 224 160 192
WIRE -48 304 -48 208
WIRE 80 304 80 208
WIRE 80 304 -48 304
WIRE 160 304 160 288
WIRE 160 304 80 304
WIRE 240 304 240 288
WIRE 240 304 160 304
WIRE 784 304 784 288
WIRE 784 304 240 304
WIRE -48 368 -48 304
FLAG -48 368 0
FLAG -48 96 Vbat
FLAG 784 -80 Vout
FLAG 624 -112 Vbat
FLAG 624 -16 0
SYMBOL voltage -48 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 21 -63 Left 0
SYMATTR Value 9
SYMATTR InstName V1
SYMBOL res 256 -128 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL res 224 192 R0
SYMATTR InstName R7
SYMATTR Value 100k
SYMBOL voltage 80 112 R0
WINDOW 123 21 -63 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 104 Invisible 0
SYMATTR Value2 AC 1
SYMATTR Value ""
SYMATTR InstName V2
SYMBOL res 800 304 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R8
SYMATTR Value 1k
SYMBOL res 560 192 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 688 48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL cap 352 -80 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL cap 480 -80 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL cap 176 288 R180
WINDOW 0 24 64 Left 0
WINDOW 3 24 8 Left 0
SYMATTR InstName C4
SYMATTR Value 100µF
SYMBOL Robertugo\\OPAMP5 624 -144 R0
SYMATTR InstName U2
SYMATTR SpiceModel LM741/NS
TEXT -32 336 Left 0 !;op
TEXT 120 336 Left 0 !.ac dec 25 1 6kilohertz
TEXT 464 -240 Left 0 ;Cut-Off Frequency: 1591Hz