Version 4
SHEET 1 968 680
WIRE -1120 -272 -1136 -272
WIRE -1136 -256 -1136 -272
WIRE -1168 -240 -1392 -240
WIRE -816 -224 -1104 -224
WIRE -720 -224 -816 -224
WIRE -1168 -208 -1216 -208
WIRE -1392 -192 -1392 -240
WIRE -1136 -176 -1136 -192
WIRE -1120 -176 -1136 -176
WIRE -816 -176 -816 -224
WIRE -1216 -48 -1216 -208
WIRE -1152 -48 -1216 -48
WIRE -1088 -48 -1152 -48
WIRE -944 -48 -1008 -48
WIRE -816 -48 -816 -96
WIRE -816 -48 -944 -48
WIRE -96 -48 -96 -80
WIRE -816 16 -816 -48
WIRE -96 64 -96 32
WIRE 0 64 -96 64
WIRE 0 80 0 64
WIRE -96 96 -96 64
WIRE -816 144 -816 96
WIRE -96 208 -96 176
FLAG 0 80 0
FLAG -96 -80 vcc
FLAG -96 208 vee
FLAG -1392 -192 0
FLAG -1120 -272 vee
FLAG -1120 -176 vcc
FLAG -720 -224 vo
FLAG -816 144 0
FLAG -1152 -48 vtest
FLAG -944 -48 vfb
SYMBOL voltage -96 -64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 49 32 Left 2
WINDOW 3 39 56 Left 2
SYMATTR InstName Vcc
SYMATTR Value +15V
SYMBOL voltage -96 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 43 44 Left 2
WINDOW 3 39 71 Left 2
SYMATTR InstName Vee
SYMATTR Value +15V
SYMBOL OPAMP_4 -1136 -224 R0
WINDOW 0 44 -21 Left 2
WINDOW 39 -141 -100 Left 2
SYMATTR InstName X1
SYMATTR SpiceLine Aol=1e6 fu=1e6 fp23=2e6 slew=10 ilim=0.04 vlim=1.5 ro=20
SYMBOL res -832 0 R0
SYMATTR InstName R1
SYMATTR Value 1e9
SYMBOL res -832 -192 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL voltage -1104 -48 R270
WINDOW 123 -85 25 VRight 2
WINDOW 39 0 0 Left 2
WINDOW 0 -58 29 VRight 2
WINDOW 3 -208 225 Left 2
SYMATTR Value2 AC 1V
SYMATTR InstName Vtest
SYMATTR Value ""
TEXT -1048 -560 Left 2 !.ac dec 20 10 10e6
TEXT -1128 -368 Left 2 ;Forward Path - A
TEXT -864 -368 Left 2 ;Feedback Path - B
TEXT -1408 -368 Left 2 ;Summing Junction
TEXT -1400 -264 Left 2 ;Vset = 0
TEXT -1104 -608 Left 2 ;Op Amp - OPEN LOOP AC TEST
TEXT -1168 80 Left 2 ;Break loop, insert Vtest
LINE Normal -1184 -224 -1344 -336 3