Version 4
SHEET 1 880 680
WIRE -48 80 -96 80
WIRE 80 80 32 80
WIRE 160 80 80 80
WIRE 272 80 240 80
WIRE 160 160 160 144
WIRE 272 160 272 80
WIRE 336 160 272 160
WIRE 464 160 336 160
WIRE 80 176 80 80
WIRE 96 176 80 176
WIRE 336 192 336 160
WIRE 272 224 272 160
WIRE 272 224 224 224
WIRE -304 272 -352 272
WIRE -176 272 -224 272
WIRE 96 272 -176 272
WIRE 464 272 464 160
WIRE -352 304 -352 272
WIRE -176 304 -176 272
WIRE 192 304 192 256
WIRE 208 304 192 304
WIRE 336 304 336 272
WIRE 336 304 272 304
WIRE 160 336 160 288
WIRE -80 352 -80 336
WIRE 16 352 16 336
WIRE -352 400 -352 384
WIRE -320 400 -352 400
WIRE -320 416 -320 400
WIRE -352 448 -352 400
WIRE -176 448 -176 384
WIRE -176 448 -352 448
WIRE -80 448 -80 432
WIRE -80 448 -176 448
WIRE 16 448 16 432
WIRE 16 448 -80 448
WIRE 464 448 464 336
WIRE 464 448 16 448
FLAG 160 144 vcc
FLAG 160 336 vss
FLAG -96 80 0
FLAG -80 336 vcc
FLAG 16 336 vss
FLAG -320 416 0
SYMBOL ad844a 160 224 R0
SYMATTR InstName U1
SYMBOL res 144 96 R270
WINDOW 0 17 2 VTop 0
WINDOW 3 44 111 VBottom 0
SYMATTR InstName R1
SYMATTR Value 500
SYMBOL res -64 96 R270
WINDOW 0 16 3 VTop 0
WINDOW 3 44 119 VBottom 0
SYMATTR InstName R2
SYMATTR Value 500
SYMBOL res -192 288 R0
WINDOW 0 -33 24 Left 0
WINDOW 3 -38 63 Left 0
SYMATTR InstName R3
SYMATTR Value 100
SYMBOL res -320 288 R270
WINDOW 0 16 4 VTop 0
WINDOW 3 45 111 VBottom 0
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL voltage -352 288 R0
WINDOW 3 -48 -210 VRight 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 -15 56 Left 0
SYMATTR Value PULSE(0 5 0 10n 10n 90n 200n)
SYMATTR InstName V1
SYMBOL cap 208 320 R270
WINDOW 0 16 6 VTop 0
WINDOW 3 44 68 VBottom 0
SYMATTR InstName Cf
SYMATTR Value 22p
SYMBOL res 320 176 R0
WINDOW 0 -39 29 Left 0
WINDOW 3 -39 63 Left 0
SYMATTR InstName Rf
SYMATTR Value 750
SYMBOL voltage -80 336 R0
WINDOW 3 -13 61 Left 0
SYMATTR InstName V+
SYMATTR Value 12
SYMBOL voltage 16 336 R0
WINDOW 3 -22 61 Left 0
SYMATTR InstName V-
SYMATTR Value -12
SYMBOL cap 448 272 R0
WINDOW 0 -79 31 Left 0
WINDOW 3 -69 61 Left 0
SYMATTR InstName Cload
SYMATTR Value 100p
TEXT 296 104 Left 0 !.Tran 0 1u 0 1n
TEXT -400 -48 Left 0 ;Specific Symbol AD844A used.\nIt requires the model file ad844a.cir either in the working directory\nor in the LTSPICE installation folder, e.g.  ...\\Lib\\sub\\ad844a.cir .\nOpamp requires compensation (Rf,Cf) with pure capacitive loads.
TEXT -96 224 Left 0 ;symbol "ad844a"