Version 4
SHEET 1 880 680
WIRE 176 32 160 32
WIRE 368 32 320 32
WIRE 160 64 160 32
WIRE 176 64 160 64
WIRE 368 64 320 64
WIRE 176 96 112 96
WIRE 368 96 320 96
WIRE 160 128 160 64
WIRE 176 128 160 128
WIRE 432 128 320 128
WIRE 160 160 160 128
WIRE 176 160 160 160
WIRE 368 160 320 160
WIRE 432 240 432 128
WIRE 160 320 160 160
FLAG -80 320 0
FLAG 0 320 0
FLAG 80 320 0
FLAG 432 320 0
FLAG 160 320 0
FLAG -80 240 +V
FLAG 0 240 -V
FLAG 80 240 INP
FLAG 368 160 INP
FLAG 368 96 +V
FLAG 368 64 OUT
FLAG 368 32 -V
FLAG 112 96 -V
SYMBOL AD8253 240 96 R0
SYMATTR InstName U1
SYMBOL voltage -80 224 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 8
SYMBOL voltage 0 224 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value -8
SYMBOL voltage 80 224 R0
WINDOW 3 -156 -67 Left 2
WINDOW 123 -156 -39 Left 2
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 0
SYMATTR Value2 AC 1
SYMBOL voltage 432 224 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 2.5
TEXT -114 344 Left 2 !;tran 0 1m .9m
TEXT -120 48 Left 2 !.ac dec 20 1k 15meg