Version 4
SHEET 1 880 680
WIRE 208 -96 144 -96
WIRE 144 -80 144 -96
WIRE 144 16 144 0
WIRE 368 96 144 96
WIRE 208 112 208 -96
WIRE 144 128 144 96
WIRE 176 128 144 128
WIRE 272 144 240 144
WIRE 368 144 368 96
WIRE 368 144 352 144
WIRE 432 144 368 144
WIRE 480 144 432 144
WIRE 592 144 560 144
WIRE 624 144 592 144
WIRE 176 160 64 160
WIRE 64 176 64 160
WIRE 592 176 592 144
WIRE 208 192 208 176
WIRE 64 272 64 256
WIRE 592 288 592 240
FLAG 208 192 0
FLAG 64 272 0
FLAG 144 16 0
FLAG 592 288 0
FLAG 624 144 out
FLAG 432 144 dac
SYMBOL Opamps\\UniversalOpamp2 208 144 R0
SYMATTR InstName U1
SYMATTR Value2 Avol=100k GBW=1Meg Slew=0.5Meg
SYMBOL voltage 64 160 R0
WINDOW 123 24 132 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value 2.5
SYMBOL voltage 144 -96 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL res 256 160 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL cap 576 176 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL res 464 160 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R2
SYMATTR Value 50
TEXT 16 -136 Left 0 !.ac dec 1000 1k 1meg
TEXT 24 96 Left 0 ;DAC
RECTANGLE Normal 384 304 0 64