* SPICE netlist
I1 0 N003 SINE(0.0001 0.0000055 240) AC 3.030303030303030303030303030303e-5
R1 N003 N005 16.5k
R2 N005 0 16.5k
XU1 N004 N001 +5V 0 N002 level1 Avol=1Meg GBW=10Meg Vos=0 En=0 Enk=0 In=0 Ink=0 Rin=500Meg ;pnba In+)In-)V+)V-)OUT
V1 +5V 0 5V
V2 N004 0 3.3V
I2 0 3.3V-Non-Compensated SINE(0.0001 0.0000055 240) AC 3.030303030303030303030303030303e-5
R9 3.3V-Non-Compensated 0 33k
C2 N001 0 100pF
R3 N001 3.3V-Reg 6.67k
I3 0 N008 SINE(0.0001 0.0000055 240) AC 5.0e-5
R4 N008 N010 25k
R5 N010 0 25k
XU2 N009 N006 +5V 0 N007 level1 Avol=1Meg GBW=10Meg Vos=0 En=0 Enk=0 In=0 Ink=0 Rin=1000Meg ;pnba In+)In-)V+)V-)OUT
V4 N009 0 3.3V
I4 0 5V-Non-Compensated SINE(0.0001 0.0000055 240) AC 5.0e-5
R7 5V-Non-Compensated 0 50k
C4 N006 0 100pF
R12 N006 5.0V-Reg 10k
R6 0 N006 20k
E1 5.0V-Reg 0 N008 0 1
R8 N007 N010 100k
E2 3.3V-Reg 0 N003 0 1
R10 N002 N005 75k
.tran 10ms
;.ac dec 100 1hz 10ghz

* LTspice schematic (.asc)
Version 4
SHEET 1 1984 1856
WIRE 880 -528 832 -528
WIRE 992 -528 944 -528
WIRE 832 -448 832 -528
WIRE 880 -448 832 -448
WIRE 992 -448 992 -528
WIRE 992 -448 960 -448
WIRE 240 -336 -304 -336
WIRE -304 -304 -304 -336
WIRE -496 -288 -496 -304
WIRE -352 -288 -496 -288
WIRE 240 -288 240 -336
WIRE 336 -288 240 -288
WIRE 368 -288 336 -288
WIRE 608 -288 448 -288
WIRE 832 -288 832 -448
WIRE 832 -288 608 -288
WIRE 880 -288 832 -288
WIRE 992 -272 992 -448
WIRE 992 -272 944 -272
WIRE 880 -256 784 -256
WIRE -496 -224 -496 -288
WIRE -976 -208 -976 -304
WIRE -496 -128 -496 -144
WIRE 176 -128 -496 -128
WIRE 992 -128 992 -272
WIRE 992 -128 256 -128
WIRE -976 -112 -976 -208
WIRE -496 -112 -496 -128
WIRE -976 0 -976 -32
WIRE -496 0 -496 -32
WIRE 880 400 832 400
WIRE 992 400 944 400
WIRE 832 480 832 400
WIRE 880 480 832 480
WIRE 992 480 992 400
WIRE 992 480 960 480
WIRE 32 592 -112 592
WIRE -112 624 -112 592
WIRE -496 640 -496 624
WIRE -160 640 -496 640
WIRE 32 640 32 592
WIRE 192 640 32 640
WIRE 368 640 192 640
WIRE 496 640 448 640
WIRE 608 640 496 640
WIRE 832 640 832 480
WIRE 832 640 608 640
WIRE 880 640 832 640
WIRE 992 656 992 480
WIRE 992 656 944 656
WIRE 880 672 784 672
WIRE -976 688 -976 624
WIRE -496 704 -496 640
WIRE -496 800 -496 784
WIRE 176 800 -496 800
WIRE 992 800 992 656
WIRE 992 800 256 800
WIRE -976 816 -976 688
WIRE -496 816 -496 800
WIRE -976 928 -976 896
WIRE -496 928 -496 896
FLAG -496 -384 0
FLAG -496 0 0
FLAG 912 -240 0
FLAG 496 -832 0
FLAG 496 -912 +5V
FLAG 912 -304 +5V
FLAG 784 -176 0
FLAG -976 -384 0
FLAG -976 0 0
FLAG 608 -224 0
FLAG -496 544 0
FLAG -496 928 0
FLAG 912 688 0
FLAG 912 624 +5V
FLAG 784 752 0
FLAG -976 544 0
FLAG -976 928 0
FLAG 608 704 0
FLAG 496 720 0
FLAG 336 -288 3.3V-Reg
FLAG 192 640 5.0V-Reg
FLAG -976 688 5V-Non-Compensated
FLAG -160 688 0
FLAG -112 704 0
FLAG -352 -240 0
FLAG -304 -224 0
FLAG -976 -208 3.3V-Non-Compensated
SYMBOL current -496 -384 R0
SYMATTR Value2 AC 3.030303030303030303030303030303e-5
SYMATTR Value SINE(0.0001 0.0000055 240)
SYMATTR InstName I1
SYMBOL res -512 -240 R0
SYMATTR InstName R1
SYMATTR Value 16.5k
SYMBOL res -512 -128 R0
SYMATTR InstName R2
SYMATTR Value 16.5k
SYMBOL OpAmps\\UniversalOpAmp 912 -272 R0
SYMATTR InstName U1
SYMBOL voltage 496 -928 R0
SYMATTR InstName V1
SYMATTR Value 5V
SYMBOL voltage 784 -272 R0
SYMATTR InstName V2
SYMATTR Value 3.3V
SYMBOL current -976 -384 R0
SYMATTR Value2 AC 3.030303030303030303030303030303e-5
SYMATTR InstName I2
SYMATTR Value SINE(0.0001 0.0000055 240)
SYMBOL res -992 -128 R0
SYMATTR InstName R9
SYMATTR Value 33k
SYMBOL cap 592 -288 R0
SYMATTR InstName C2
SYMATTR Value 100pF
SYMBOL res 464 -304 R90
SYMATTR InstName R3
SYMATTR Value 6.67k
SYMBOL current -496 544 R0
SYMATTR Value2 AC 5.0e-5
SYMATTR Value SINE(0.0001 0.0000055 240)
SYMATTR InstName I3
SYMBOL res -512 688 R0
SYMATTR InstName R4
SYMATTR Value 25k
SYMBOL res -512 800 R0
SYMATTR InstName R5
SYMATTR Value 25k
SYMBOL OpAmps\\UniversalOpAmp 912 656 R0
SYMATTR InstName U2
SYMATTR SpiceLine En=0 Enk=0 In=0 Ink=0 Rin=1000Meg
SYMBOL voltage 784 656 R0
SYMATTR InstName V4
SYMATTR Value 3.3V
SYMBOL current -976 544 R0
SYMATTR Value2 AC 5.0e-5
SYMATTR InstName I4
SYMATTR Value SINE(0.0001 0.0000055 240)
SYMBOL res -992 800 R0
SYMATTR InstName R7
SYMATTR Value 50k
SYMBOL cap 592 640 R0
SYMATTR InstName C4
SYMATTR Value 100pF
SYMBOL res 464 624 R90
SYMATTR InstName R12
SYMATTR Value 10k
SYMBOL res 512 736 R180
SYMATTR InstName R6
SYMATTR Value 20k
SYMBOL e -112 608 R0
SYMATTR InstName E1
SYMATTR Value 1
SYMBOL res 272 784 R90
SYMATTR InstName R8
SYMATTR Value 100k
SYMBOL e -304 -320 R0
SYMATTR InstName E2
SYMATTR Value 1
SYMBOL res 272 -144 R90
SYMATTR InstName R10
SYMATTR Value 75k