Version 4
SHEET 1 2680 680
WIRE -496 -752 -608 -752
WIRE -608 -736 -608 -752
WIRE -496 -736 -496 -752
WIRE -608 -640 -608 -656
WIRE -176 -624 -352 -624
WIRE 0 -624 -96 -624
WIRE 176 -624 0 -624
WIRE 352 -624 256 -624
WIRE -496 -592 -496 -656
WIRE -432 -592 -496 -592
WIRE -496 -576 -496 -592
WIRE 48 -560 48 -576
WIRE 0 -544 0 -624
WIRE 16 -544 0 -544
WIRE 352 -528 352 -624
WIRE 352 -528 80 -528
WIRE 368 -528 352 -528
WIRE 16 -512 0 -512
WIRE -496 -480 -496 -496
WIRE -432 -480 -352 -624
WIRE -432 -480 -496 -480
WIRE 48 -480 48 -496
WIRE -608 -464 -608 -480
WIRE -496 -464 -496 -480
WIRE -352 -448 -432 -592
WIRE -336 -448 -352 -448
WIRE -176 -448 -256 -448
WIRE 0 -448 0 -512
WIRE 0 -448 -96 -448
WIRE 0 -432 0 -448
WIRE 0 -336 0 -352
FLAG 0 -336 0
FLAG 368 -528 Out
FLAG -608 -464 0
FLAG -608 -640 0
FLAG -608 -752 Vcc
FLAG -608 -560 Vee
FLAG 48 -576 Vcc
FLAG 48 -480 Vee
FLAG -496 -464 0
SYMBOL res -192 -432 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value {wc(22.5k,tola,1)}
SYMBOL res -16 -448 R0
SYMATTR InstName R4
SYMATTR Value {wc(22.5k,tolb,0)}
SYMBOL res 272 -640 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value {wc(22.5k,tolb,3)}
SYMBOL res -192 -608 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value {wc(22.5k,tola,2)}
SYMBOL Opamps\\LT6015 48 -528 R0
SYMATTR InstName U2
SYMBOL voltage -608 -752 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -608 -576 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL current -496 -736 R0
SYMATTR InstName I1
SYMATTR Value PWL(.1m 0 .2m .25)
SYMBOL res -512 -592 R0
SYMATTR InstName R5
SYMATTR Value 1
SYMBOL res -240 -464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 1
TEXT -616 -200 Left 2 !.param tola=.01
TEXT -616 -168 Left 2 !.param tolb=.05
TEXT 328 -352 Left 2 !.tran .5m
TEXT -96 -168 Left 2 !.step param run 0 16 1
TEXT -616 -280 Left 2 !.func binary(run,index) floor(run/(2**index))-2*floor(run/(2**(index+1)))
TEXT -616 -240 Left 2 !.func wc(nom,tol,index) if(run==numruns,nom,if(binary(run,index),nom*(1+tol),nom*(1-tol)))
TEXT -96 -200 Left 2 !.param numruns=16
TEXT 80 -408 Left 2 ;5% Resistor
TEXT 208 -672 Bottom 2 ;5% Resistor
TEXT -136 -672 Bottom 2 ;1% Resistor
TEXT -136 -496 Bottom 2 ;1% Resistor
TEXT 416 -528 Left 2 ;±1mV/mA