Version 4
SHEET 1 2020 680
WIRE -624 -160 -624 -208
WIRE 1216 -144 1168 -144
WIRE 1344 -144 1296 -144
WIRE -624 -64 -624 -80
WIRE -624 -64 -704 -64
WIRE -624 -48 -624 -64
WIRE 480 -48 80 -48
WIRE 1168 -48 1168 -144
WIRE 1216 -48 1168 -48
WIRE 1344 -32 1344 -144
WIRE 1344 -32 1280 -32
WIRE 1408 -32 1344 -32
WIRE 1680 -32 1488 -32
WIRE -704 -16 -704 -64
WIRE 976 -16 832 -16
WIRE 1056 -16 976 -16
WIRE 1216 -16 1120 -16
WIRE 480 0 480 -48
WIRE 1680 32 1680 -32
WIRE 1776 32 1680 32
WIRE 2016 32 1856 32
WIRE 976 48 976 -16
WIRE 1168 64 1168 -48
WIRE -624 80 -624 32
WIRE 80 128 80 -48
WIRE 480 128 480 80
WIRE 608 128 480 128
WIRE 832 128 832 -16
WIRE 832 128 608 128
WIRE 480 160 480 128
WIRE 976 160 976 112
WIRE 1680 160 1680 32
WIRE 1792 160 1680 160
WIRE 608 176 608 128
WIRE 832 176 832 128
WIRE 2016 176 2016 32
WIRE 2016 176 1856 176
WIRE 1792 192 1680 192
WIRE 80 240 80 208
WIRE 80 240 -224 240
WIRE 80 272 80 240
WIRE 480 288 480 240
WIRE 608 288 608 240
WIRE 608 288 480 288
WIRE 832 288 832 240
WIRE 832 288 608 288
WIRE 1168 304 1168 144
WIRE 1216 304 1168 304
WIRE 1344 304 1296 304
WIRE 480 320 480 288
WIRE -224 384 -224 240
WIRE 1168 400 1168 304
WIRE 1216 400 1168 400
WIRE 1344 416 1344 304
WIRE 1344 416 1280 416
WIRE 1408 416 1344 416
WIRE 1680 416 1680 192
WIRE 1680 416 1488 416
WIRE 1744 416 1680 416
WIRE 1872 416 1824 416
WIRE 80 432 80 352
WIRE 480 432 480 400
WIRE 480 432 80 432
WIRE 832 432 832 288
WIRE 976 432 832 432
WIRE 1056 432 976 432
WIRE 1216 432 1120 432
WIRE -224 496 -224 464
WIRE 976 496 976 432
WIRE 976 608 976 560
FLAG -704 -16 0
FLAG -624 -208 +5V
FLAG -624 80 -5V
FLAG 1248 0 -5V
FLAG 1248 -64 +5V
FLAG 1248 384 +5V
FLAG 1248 448 -5V
FLAG 1824 208 -5V
FLAG 1824 144 +5V
FLAG 1872 416 0
FLAG 976 160 0
FLAG 976 608 0
FLAG -224 496 0
SYMBOL voltage 80 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 {amplitude / 2} {f})
SYMBOL res 464 -16 R0
SYMATTR InstName R1
SYMATTR Value 10Meg
SYMBOL res 464 144 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 464 304 R0
SYMATTR InstName R3
SYMATTR Value 10Meg
SYMBOL voltage 80 256 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(0 {amplitude / 2} {f})
SYMBOL diode 592 176 R0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 848 240 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL res 1312 -160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res 1312 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL voltage -624 -176 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL voltage -624 -64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 5
SYMBOL res 1152 48 R0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL res 1504 -48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 2k5
SYMBOL res 1504 400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 2k5
SYMBOL res 1872 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 10k
SYMBOL res 1840 400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 10k
SYMBOL Opamps\\LT1223 1248 -96 R0
SYMATTR InstName U4
SYMBOL Opamps\\LT1223 1248 352 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1223 1824 112 R0
SYMATTR InstName U2
SYMBOL TVSdiode 960 48 R0
WINDOW 0 24 0 Left 2
WINDOW 3 24 64 Left 2
SYMATTR InstName D2
SYMATTR Value SMBJ24CA
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL TVSdiode 960 496 R0
WINDOW 0 24 0 Left 2
WINDOW 3 24 64 Left 2
SYMATTR InstName D4
SYMATTR Value SMBJ24CA
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage -224 368 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V5
SYMATTR Value 0
SYMBOL cap 1120 416 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL cap 1120 -32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 10n
TEXT -20 438 Left 2 !.tran 100u
TEXT -256 -32 Left 2 !.param f = 1.1MEG
TEXT -248 0 Left 2 !.param amplitude = 1k25
