Version 4
SHEET 1 2240 680
WIRE 432 -96 416 -96
WIRE 208 -80 176 -80
WIRE 432 -64 416 -64
WIRE 208 -48 176 -48
WIRE 432 -32 416 -32
WIRE 208 112 160 112
WIRE 320 112 288 112
WIRE 336 112 320 112
WIRE 432 112 416 112
WIRE 320 224 320 112
WIRE 336 224 320 224
WIRE 432 240 432 112
WIRE 432 240 400 240
WIRE 544 240 432 240
WIRE 608 240 544 240
WIRE 192 256 160 256
WIRE 288 256 272 256
WIRE 336 256 288 256
WIRE 544 272 544 240
WIRE 544 272 512 272
WIRE 576 272 544 272
WIRE 512 288 512 272
WIRE 576 304 576 272
WIRE 512 384 512 368
WIRE 576 384 576 368
FLAG 528 176 0
FLAG 624 176 0
FLAG 528 96 V+
FLAG 624 96 V-
FLAG 176 -80 in
IOPIN 176 -80 In
FLAG 176 -48 out
IOPIN 176 -48 In
FLAG 432 -96 settle_H
FLAG 432 -64 settle_L
FLAG 432 -32 tmp_IN
FLAG 368 208 V+
FLAG 368 272 V-
FLAG 608 240 out
IOPIN 608 240 Out
FLAG 576 384 0
FLAG 160 256 0
FLAG 512 384 0
FLAG 160 112 0
FLAG 288 256 in
SYMBOL voltage 528 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage 624 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value -15
SYMBOL cap 560 304 R0
SYMATTR InstName CL
SYMATTR Value 10n
SYMBOL voltage 288 256 R90
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 0
WINDOW 3 64 -121 VRight 1
WINDOW 0 -48 42 VRight 2
SYMATTR Value PULSE(-0.2 0.2 50u 1n 1n 100u 200u)
SYMATTR InstName V1
SYMBOL Opamps/AD8510 368 176 R0
SYMATTR InstName U1
SYMBOL res 496 272 R0
WINDOW 0 -33 39 Left 2
WINDOW 3 -44 77 Left 2
SYMATTR InstName RL
SYMATTR Value 10k
SYMBOL res 432 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 18k
SYMBOL res 304 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 2k
SYMBOL Settling_Meas 304 -64 R0
WINDOW 39 11 -85 Bottom 2
SYMATTR SpiceLine VH=2.02 VL=-2.02 Sig_ref=0
SYMATTR InstName X2
TEXT 264 400 Left 2 !.tran 0 200u 0 1n
TEXT 24 -432 Left 2 !.meas TRAN res1 TRIG V(tmp_IN)=0.5 TD=0 RISE=1 TARG V(settle_H)=0.5 TD=0 RISE=last
TEXT 24 -400 Left 2 !.meas TRAN res2 TRIG V(tmp_IN)=0.5 TD=0 RISE=1 TARG V(settle_H)=0.5 TD=0 FALL=last
TEXT 24 -368 Left 2 !.meas TRAN tsettle_H PARAM max(res1,res2)
TEXT 24 -312 Left 2 !.meas TRAN res3 TRIG V(tmp_IN)=0.5 TD=0 FALL=1 TARG V(settle_L)=0.5 TD=0 RISE=last
TEXT 24 -248 Left 2 !.meas TRAN tsettle_L PARAM max(res3,res4)
TEXT 24 -280 Left 2 !.meas TRAN res4 TRIG V(tmp_IN)=0.5 TD=0 FALL=1 TARG V(settle_L)=0.5 TD=0 FALL=last