Version 4
SHEET 1 884 916
WIRE -288 -16 -336 -16
WIRE 112 -16 -208 -16
WIRE 400 -16 368 -16
WIRE 496 -16 480 -16
WIRE -480 32 -608 32
WIRE -480 48 -480 32
WIRE -128 64 -240 64
WIRE 112 64 -48 64
WIRE 512 64 368 64
WIRE 624 64 512 64
WIRE -480 144 -480 128
WIRE 112 144 -480 144
WIRE 512 144 368 144
WIRE -480 160 -480 144
WIRE 512 160 512 144
WIRE -608 208 -608 32
WIRE 112 224 -144 224
WIRE 384 224 368 224
WIRE 464 224 448 224
WIRE -480 256 -480 240
WIRE 512 256 512 240
WIRE -608 304 -608 288
WIRE 112 304 16 304
WIRE 384 304 368 304
WIRE 16 336 16 304
WIRE 16 448 16 416
WIRE -144 512 -144 224
WIRE 192 512 -144 512
WIRE 624 512 624 64
WIRE 624 512 272 512
WIRE -144 528 -144 512
WIRE -144 624 -144 608
WIRE -144 720 -144 704
FLAG -144 720 0
FLAG 384 304 0
FLAG 16 448 0
FLAG 464 224 0
FLAG -480 256 0
FLAG 512 256 0
FLAG 496 -16 0
FLAG -608 304 0
FLAG -336 -16 0
FLAG -240 64 0
SYMBOL LTC2900-1 240 144 R0
WINDOW 0 0 -96 Center 2
WINDOW 3 0 96 Center 2
SYMATTR InstName U1
SYMBOL res 288 496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 121K
SYMBOL res -128 624 R180
WINDOW 0 -45 67 Left 2
WINDOW 3 -69 29 Left 2
SYMATTR InstName R2
SYMATTR Value 464K
SYMBOL cap 384 240 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value .001µ
SYMBOL voltage 16 320 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR Value PWL(0 5 14 5 14.001 0 15.001 0 15.002 5)
SYMATTR InstName V1
SYMBOL voltage -144 608 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(1 -5 11 -5 12 -4 13 -4 14 -5)
SYMBOL res -496 32 R0
SYMATTR InstName R3
SYMATTR Value 2150K
SYMBOL res -496 144 R0
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL voltage -608 192 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR Value PWL(1 12 8 12 9 10 10 10 11 12)
SYMATTR InstName V3
SYMBOL res 384 0 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 1Meg
SYMBOL voltage -32 64 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PWL(1 3.3 5 3.3 6 3 7 3 8 3.3)
SYMBOL voltage -192 -16 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value PWL(1 5 2 5 3 4 4 4 5 5)
SYMBOL res 496 48 R0
SYMATTR InstName R6
SYMATTR Value 93.1K
SYMBOL res 496 144 R0
SYMATTR InstName R7
SYMATTR Value 9.53K
TEXT 512 624 Left 2 !.tran 16