* SPICE netlist
RF1 VOUTP N001 1k
RG1 N001 VINN 500
VP1 VINN 0 SINE(0 0.5 1k)
VS1 VCC 0 5
VS2 0 VEE 5
RF2 VOUTN N002 1k
RG2 N002 VINP 500
E1 VIN 0 VINN VINP 1
E2 VOUT 0 VOUTP VOUTN 1
XU1 0 N001 VCC VEE VOUTP level2 Avol=1Meg GBW=10Meg Slew=10Meg Ilimit=25m Rail=0 Vos=0 En=0 Enk=0 In=0 Ink=0 Rin=500Meg ;pnba In+)In-)V+)V-)OUT
XU2 0 N002 VCC VEE VOUTN level2 Avol=1Meg GBW=10Meg Slew=10Meg Ilimit=25m Rail=0 Vos=0 En=0 Enk=0 In=0 Ink=0 Rin=500Meg ;pnba In+)In-)V+)V-)OUT
VN1 0 VINP SINE(0 0.5 1k)
.tran 2m

* LTspice schematic (.asc)
Version 4
SHEET 1 912 528
WIRE 424 -264 376 -264
WIRE 456 -264 424 -264
WIRE -360 -248 -392 -248
WIRE 376 -232 376 -264
WIRE -360 -216 -360 -248
WIRE -360 -216 -456 -216
WIRE -328 -216 -360 -216
WIRE -216 -216 -248 -216
WIRE -104 -216 -216 -216
WIRE 24 -216 -24 -216
WIRE 56 -216 24 -216
WIRE 328 -216 296 -216
WIRE 328 -168 296 -168
WIRE -456 -152 -456 -216
WIRE -120 -152 -120 -168
WIRE -120 -120 -120 -152
WIRE 376 -120 376 -152
WIRE -216 -104 -216 -216
WIRE -152 -104 -216 -104
WIRE 24 -88 24 -216
WIRE 24 -88 -88 -88
WIRE -152 -72 -216 -72
WIRE 424 -72 376 -72
WIRE 456 -72 424 -72
WIRE 376 -40 376 -72
WIRE -456 -24 -456 -72
WIRE -376 -24 -456 -24
WIRE -216 -24 -216 -72
WIRE -216 -24 -264 -24
WIRE -120 -24 -120 -56
WIRE 328 -24 280 -24
WIRE -120 -8 -120 -24
WIRE -376 24 -376 -24
WIRE -264 24 -264 -24
WIRE 328 24 280 24
WIRE -120 40 -120 24
WIRE -456 56 -456 -24
WIRE -120 72 -120 40
WIRE 376 72 376 40
WIRE -216 88 -216 -24
WIRE -152 88 -216 88
WIRE 24 104 -88 104
WIRE -152 120 -216 120
WIRE 248 120 248 104
WIRE 312 120 312 104
WIRE -120 168 -120 136
WIRE 248 168 248 120
WIRE 312 168 312 120
WIRE -120 184 -120 168
WIRE -456 232 -456 136
WIRE -360 232 -456 232
WIRE -328 232 -360 232
WIRE -216 232 -216 120
WIRE -216 232 -248 232
WIRE -104 232 -216 232
WIRE 24 232 24 104
WIRE 24 232 -24 232
WIRE 56 232 24 232
WIRE -360 264 -360 232
WIRE -360 264 -392 264
WIRE 248 264 248 248
WIRE 312 264 312 248
FLAG 56 -216 VOUTP
IOPIN 432 -240 Out
FLAG 248 264 0
FLAG 312 264 0
FLAG 248 120 VEE
FLAG 312 120 VCC
FLAG -120 -152 VCC
FLAG -120 40 VEE
FLAG 56 232 VOUTN
IOPIN 432 208 Out
FLAG -392 -248 VINN
IOPIN -16 -272 In
FLAG -392 264 VINP
IOPIN -16 240 In
FLAG 376 -120 0
FLAG 376 72 0
FLAG 280 24 VINP
IOPIN 656 0 In
FLAG 280 -24 VINN
IOPIN 656 -48 In
FLAG 296 -168 VOUTN
IOPIN 672 -192 In
FLAG 296 -216 VOUTP
IOPIN 672 -240 In
FLAG 424 -72 VIN
FLAG 424 -264 VOUT
FLAG -120 -24 VEE
FLAG -120 168 VCC
FLAG -264 24 0
FLAG -376 24 0
SYMBOL res -8 -232 R90
SYMATTR InstName RF1
SYMATTR Value 1k
SYMBOL res -232 -232 R90
SYMATTR InstName RG1
SYMATTR Value 500
SYMBOL voltage -456 -168 R0
SYMATTR InstName VP1
SYMATTR Value SINE(0 0.5 1k)
SYMBOL Misc\\battery 312 152 R0
SYMATTR InstName VS1
SYMATTR Value 5
SYMBOL Misc\\battery 248 264 R180
SYMATTR InstName VS2
SYMATTR Value 5
SYMBOL res -8 216 R90
SYMATTR InstName RF2
SYMATTR Value 1k
SYMBOL res -232 216 R90
SYMATTR InstName RG2
SYMATTR Value 500
SYMBOL e 376 -56 R0
SYMATTR InstName E1
SYMATTR Value 1
SYMBOL e 376 -248 R0
SYMATTR InstName E2
SYMATTR Value 1
SYMBOL Opamps\\UniversalOpamp2 -120 -88 R0
SYMATTR InstName U1
SYMBOL Opamps\\UniversalOpamp2 -120 104 M180
SYMATTR InstName U2
SYMBOL voltage -456 40 R0
SYMATTR InstName VN1
SYMATTR Value SINE(0 0.5 1k)