Version 4
SHEET 1 880 680
WIRE -336 32 -336 16
WIRE 208 64 112 64
WIRE 208 128 208 64
WIRE 224 128 224 64
WIRE 112 144 112 64
WIRE 192 144 112 144
WIRE -336 160 -336 112
WIRE -336 160 -368 160
WIRE 432 160 256 160
WIRE 480 160 432 160
WIRE -368 176 -368 160
WIRE -48 176 -160 176
WIRE 16 176 -48 176
WIRE 192 176 96 176
WIRE -336 192 -336 160
WIRE 432 192 432 160
WIRE -160 240 -160 176
WIRE 224 240 224 192
WIRE -336 288 -336 272
WIRE 432 304 432 272
WIRE -160 352 -160 320
FLAG -48 176 Vin
FLAG 224 64 +Vs
FLAG 224 240 -Vs
FLAG 480 160 Vout
FLAG 432 304 0
FLAG -336 16 +Vs
FLAG -336 288 -Vs
FLAG -368 176 0
FLAG -160 352 0
SYMBOL res 416 176 R0
SYMATTR InstName RL
SYMATTR Value 1k
SYMBOL res 112 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rin
SYMATTR Value 24.9
SYMBOL voltage -336 176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 0
SYMATTR InstName VS-
SYMATTR Value 5
SYMBOL voltage -336 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 0
SYMATTR InstName VS+
SYMATTR Value 5
SYMBOL voltage -160 224 R0
WINDOW 0 42 50 Left 2
WINDOW 3 42 78 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 42 106 Left 2
SYMATTR InstName VIN
SYMATTR Value PULSE(-1 1 20n 1n 1n 50n 100n)
SYMBOL ADA4899 224 176 R0
SYMATTR InstName U1
TEXT -160 56 Left 2 !.tran 100n
TEXT -160 -24 Left 2 ;ADA4899\nUnity-Gain Operation
TEXT 48 384 Left 2 ;Disable: _DISABLE pin = -Vs\nEnable: _DISABLE pin = open\nLow Ib: _DISABLE pin = +Vs