Version 4
SHEET 1 880 680
WIRE -208 -176 -240 -176
WIRE -112 -176 -128 -176
WIRE -80 -176 -112 -176
WIRE 32 -176 0 -176
WIRE 112 -176 96 -176
WIRE 192 -176 112 -176
WIRE 256 -176 192 -176
WIRE 192 -160 192 -176
WIRE -112 -80 -112 -176
WIRE 112 -80 112 -176
WIRE 256 -80 256 -176
WIRE -352 -64 -352 -80
WIRE -272 -64 -352 -64
WIRE -352 -48 -352 -64
WIRE -272 -48 -272 -64
WIRE 192 -48 192 -80
WIRE -240 0 -240 -176
WIRE -112 48 -112 -16
WIRE 112 48 112 -16
WIRE 144 48 112 48
WIRE 256 48 256 -16
WIRE 256 48 224 48
WIRE 288 48 256 48
WIRE 320 48 288 48
WIRE -240 80 -240 0
WIRE 112 112 112 48
WIRE 112 160 112 112
WIRE 128 160 112 160
WIRE 256 176 256 48
WIRE 256 176 192 176
WIRE -240 192 -240 160
WIRE 128 192 80 192
WIRE 80 208 80 192
WIRE -240 320 -240 272
FLAG -352 -160 +Ub
FLAG 160 144 +Ub
FLAG -352 32 -Ub
FLAG 160 208 -Ub
FLAG -272 -48 0
FLAG 80 208 0
FLAG -240 320 0
FLAG 192 -48 0
FLAG 288 48 pin14
FLAG 112 112 pin13
FLAG -240 0 Pin11
FLAG -112 48 0
SYMBOL voltage -352 -176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 4V
SYMBOL voltage -352 -64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 4V
SYMBOL voltage -240 176 R0
WINDOW 3 -45 182 Left 2
WINDOW 123 35 45 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 0.02 25)
SYMATTR Value2 AC 0.02
SYMATTR InstName V3
SYMBOL Misc\\EuropeanResistor -256 64 R0
SYMATTR InstName ri
SYMATTR Value 400
SYMBOL Misc\\EuropeanResistor 16 -192 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 8K2
SYMBOL Misc\\EuropeanResistor 240 32 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 820K
SYMBOL cap 96 -80 R0
SYMATTR InstName C2
SYMATTR Value 0.22µ
SYMBOL cap 240 -80 R0
SYMATTR InstName C3
SYMATTR Value 0.22µ
SYMBOL Misc\\EuropeanResistor 176 -176 R0
SYMATTR InstName R2
SYMATTR Value 1K10
SYMBOL Misc\\EuropeanResistor -112 -192 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 820
SYMBOL cap -128 -80 R0
SYMATTR InstName C1
SYMATTR Value 4µ7
SYMBOL Opamps\\LTC1053 160 112 R0
SYMATTR InstName U1
SYMBOL cap 96 -192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 22µ
TEXT -288 400 Left 2 !.ac oct 20 10 40
TEXT -80 400 Left 2 ;.tran 0 1 0.1 0.001
TEXT -128 -64 Left 2 ;+
TEXT 40 -192 Left 2 ;+