Version 4 SHEET 1 2616 848 WIRE 768 48 592 48 WIRE 592 64 592 48 WIRE 224 128 -320 128 WIRE 768 128 768 48 WIRE 128 160 -224 160 WIRE 592 160 592 144 WIRE 592 160 320 160 WIRE 592 176 592 160 WIRE 128 192 128 160 WIRE 224 192 224 128 WIRE 320 192 320 160 WIRE 768 240 768 208 WIRE 592 272 592 256 WIRE 0 304 -16 304 WIRE 80 304 64 304 WIRE 400 304 368 304 WIRE 528 304 480 304 WIRE 528 336 528 304 WIRE 0 432 -16 432 WIRE 80 432 64 432 WIRE 448 432 368 432 WIRE 528 432 528 416 WIRE 448 464 448 432 WIRE -224 480 -224 160 WIRE 224 496 224 480 WIRE -320 560 -320 128 WIRE 448 560 448 544 WIRE -224 576 -224 560 WIRE -320 656 -320 640 FLAG 448 560 0 FLAG 528 432 0 FLAG 768 240 0 FLAG -224 576 0 FLAG -320 656 0 FLAG 224 496 0 FLAG -16 304 0 FLAG -16 432 0 FLAG 592 272 0 SYMBOL voltage 528 320 R0 SYMATTR InstName V4 SYMATTR Value 5 SYMBOL res 496 288 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL cap 64 288 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 47n SYMBOL cap 64 416 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 47n SYMBOL res 576 48 R0 SYMATTR InstName R1 SYMATTR Value 66.5K SYMBOL res 576 160 R0 SYMATTR InstName R2 SYMATTR Value 100K SYMBOL LTC1726-2.5 224 400 R0 SYMATTR InstName U1 SYMBOL voltage -320 544 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR Value PWL(0 0 250m 3.3 3 3.3 3.5 0 4 0 4.5 3.3 100 3.3) SYMATTR InstName V2 SYMBOL voltage -224 464 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR Value PWL(0 0 350m 2.5 1 2.5 1.5 0 2 0 2.5 2.5 100 2.5) SYMATTR InstName V3 SYMBOL voltage 448 448 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR InstName V6 SYMATTR Value PULSE(0 2 5000ms 1u 1u 800ms 1600m 6) SYMBOL voltage 768 112 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR Value PWL(0 0 100m 1.8V 5s 1.8V 5.5s 0V 6s 0V 6.5s 1.8V 6.8s 1.8V 6.8001s 0V 6.8002s 1.8V 6.9s 1.8V 6.9001s 0V 6.9002s 1.8V 100s 1.8V) SYMATTR InstName V1 TEXT 872 608 Left 2 !.tran 17