* SPICE netlist
XU1 N008 N001 Vcc+ Vcc- N007 LM324 ;pnba In+)In-)V+)V-)OUT
XU2 N007 N003 Vcc+ Vcc- Vout LM6181/NS ;pnba In+)In-)V+)V-)OUT
R1 N001 0 10k
R2 Vout N001 90k
R3 N003 0 45
R4 Vout N003 925
V1 N009 0 SINE(0 1 10k) AC 1
V2 Vcc- 0 -12
V3 Vcc+ 0 12
XU3 N009 N002 Vcc+ Vcc- N005 LM324 ;pnba In+)In-)V+)V-)OUT
XU4 N006 N004 Vcc+ Vcc- VoutP LM6181/NS ;pnba In+)In-)V+)V-)OUT
R5 N002 0 10k
R6 VoutP N002 90k
R7 N004 0 23
R8 VoutP N004 925
R9 N006 N005 3.1k
R10 N006 0 3.1k
C1 N006 N005 10p
.tran 0 0.0005 0
.inc LM324.lib
.inc E:\Documentos\GitHub\lab3SRA\LM6181.MOD

* LTspice schematic (.asc)
Version 4
SHEET 1 2656 624
WIRE -1136 -296 -1168 -296
WIRE -576 -296 -1056 -296
WIRE 304 -280 272 -280
WIRE 1328 -280 384 -280
WIRE -960 -168 -992 -168
WIRE -832 -168 -880 -168
WIRE -784 -168 -832 -168
WIRE -656 -168 -704 -168
WIRE 944 -152 912 -152
WIRE 1072 -152 1024 -152
WIRE 1120 -152 1072 -152
WIRE 1248 -152 1200 -152
WIRE -992 -136 -992 -168
WIRE 912 -120 912 -152
WIRE -832 -24 -832 -168
WIRE -800 -24 -832 -24
WIRE 576 -24 560 -24
WIRE 672 -24 656 -24
WIRE -1296 -8 -1328 -8
WIRE -1168 -8 -1168 -296
WIRE -1168 -8 -1216 -8
WIRE -1120 -8 -1168 -8
WIRE -656 -8 -656 -168
WIRE -656 -8 -736 -8
WIRE -576 -8 -576 -296
WIRE -576 -8 -656 -8
WIRE 1072 -8 1072 -152
WIRE 1104 -8 1072 -8
WIRE -800 8 -1056 8
WIRE 144 8 112 8
WIRE 272 8 272 -280
WIRE 272 8 224 8
WIRE 320 8 272 8
WIRE 1248 8 1248 -152
WIRE 1248 8 1168 8
WIRE 1328 8 1328 -280
WIRE 1328 8 1248 8
WIRE -1328 24 -1328 -8
WIRE -1120 24 -1168 24
WIRE 560 24 560 -24
WIRE 560 24 384 24
WIRE 672 24 672 -24
WIRE 848 24 672 24
WIRE 1104 24 848 24
WIRE 112 40 112 8
WIRE 320 40 272 40
WIRE 560 72 560 24
WIRE 576 72 560 72
WIRE 672 72 672 24
WIRE 672 72 640 72
WIRE 848 88 848 24
WIRE -1168 152 -1168 24
WIRE 272 168 272 40
WIRE 848 216 848 168
WIRE -1168 296 -1168 232
WIRE 272 312 272 248
WIRE 1024 312 1024 264
WIRE 1152 312 1152 264
FLAG -992 -136 0
FLAG -1328 24 0
FLAG -1168 296 0
FLAG 1024 312 0
FLAG 1152 312 0
FLAG 1024 184 Vcc-
FLAG -1088 40 Vcc-
FLAG -768 24 Vcc-
FLAG 1152 184 Vcc+
FLAG -768 -40 Vcc+
FLAG -1088 -24 Vcc+
FLAG -576 -8 Vout
FLAG 912 -120 0
FLAG 112 40 0
FLAG 272 312 0
FLAG 352 56 Vcc-
FLAG 1136 40 Vcc-
FLAG 1136 -24 Vcc+
FLAG 352 -8 Vcc+
FLAG 848 216 0
FLAG 1328 8 VoutP
SYMBOL OpAmps\\opamp2 -1088 -56 R0
SYMATTR InstName U1
SYMATTR Value LM324
SYMBOL OpAmps\\opamp2 -768 -72 R0
SYMATTR InstName U2
SYMATTR Value LM6181/NS
SYMBOL res -1200 -24 R90
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res -1040 -312 R90
SYMATTR InstName R2
SYMATTR Value 90k
SYMBOL res -864 -184 R90
SYMATTR InstName R3
SYMATTR Value 45
SYMBOL res -688 -184 R90
SYMATTR InstName R4
SYMATTR Value 925
SYMBOL voltage 272 152 R0
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value SINE(0 1 10k)
SYMBOL voltage 1024 168 R0
SYMATTR InstName V2
SYMATTR Value -12
SYMBOL voltage 1152 168 R0
SYMATTR InstName V3
SYMATTR Value 12
SYMBOL OpAmps\\opamp2 352 -40 R0
SYMATTR InstName U3
SYMATTR Value LM324
SYMBOL OpAmps\\opamp2 1136 -56 R0
SYMATTR InstName U4
SYMATTR Value LM6181/NS
SYMBOL res 240 -8 R90
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res 400 -296 R90
SYMATTR InstName R6
SYMATTR Value 90k
SYMBOL res 1040 -168 R90
SYMATTR InstName R7
SYMATTR Value 23
SYMBOL res 1216 -168 R90
SYMATTR InstName R8
SYMATTR Value 925
SYMBOL res 672 -40 R90
SYMATTR InstName R9
SYMATTR Value 3.1k
SYMBOL res 832 72 R0
SYMATTR InstName R10
SYMATTR Value 3.1k
SYMBOL cap 640 56 R90
SYMATTR InstName C1
SYMATTR Value 10p