Version 4 SHEET 1 1248 1176 WIRE 208 304 208 288 WIRE -544 320 -864 320 WIRE -80 320 -544 320 WIRE 16 320 0 320 WIRE 176 320 16 320 WIRE -864 336 -864 320 WIRE 16 336 16 320 WIRE 272 336 240 336 WIRE 384 336 272 336 WIRE 480 336 464 336 WIRE 528 336 480 336 WIRE 176 352 144 352 WIRE 480 352 480 336 WIRE 208 384 208 368 WIRE 16 416 16 400 WIRE -864 432 -864 416 WIRE 144 432 144 352 WIRE 272 432 272 336 WIRE 272 432 144 432 WIRE 480 432 480 416 WIRE 208 512 208 496 WIRE -448 528 -496 528 WIRE -112 528 -160 528 WIRE -80 528 -112 528 WIRE 16 528 0 528 WIRE 176 528 16 528 WIRE -864 544 -864 528 WIRE -752 544 -752 528 WIRE 16 544 16 528 WIRE 368 544 240 544 WIRE 384 544 368 544 WIRE 480 544 464 544 WIRE 528 544 480 544 WIRE 176 560 160 560 WIRE 480 560 480 544 WIRE -496 592 -496 528 WIRE -448 592 -496 592 WIRE -112 592 -112 528 WIRE -112 592 -160 592 WIRE 208 592 208 576 WIRE -496 608 -496 592 WIRE 16 624 16 608 WIRE -864 640 -864 624 WIRE -752 640 -752 624 WIRE -304 640 -304 624 WIRE 480 640 480 624 WIRE -496 688 -496 672 WIRE -544 720 -544 320 WIRE -80 720 -544 720 WIRE 16 720 0 720 WIRE 64 720 16 720 WIRE 160 720 160 560 WIRE 160 720 144 720 WIRE 176 720 160 720 WIRE 272 720 256 720 WIRE 368 720 368 544 WIRE 368 720 352 720 WIRE 16 736 16 720 WIRE 16 816 16 800 FLAG -864 640 0 FLAG 208 384 +V FLAG -864 528 +V FLAG 208 288 -V FLAG -752 640 0 FLAG -752 528 -V FLAG -864 432 0 FLAG 528 336 OUT+ FLAG -864 320 IN FLAG 16 416 0 FLAG 16 816 0 FLAG 480 432 0 FLAG 480 640 0 FLAG 208 592 +V FLAG 208 496 -V FLAG 528 544 OUT- FLAG 16 624 0 FLAG -112 528 Vcm FLAG -496 528 +V FLAG -304 640 0 FLAG -496 688 0 SYMBOL voltage -864 528 R0 SYMATTR InstName V1 SYMATTR Value 7.5 SYMBOL voltage -752 528 R0 SYMATTR InstName V2 SYMATTR Value -2.5 SYMBOL voltage -864 320 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value SINE(2.048 2.048 100k) SYMBOL LT6201 208 336 M180 SYMATTR InstName U1 SYMBOL Opamps/LT6201 208 544 M180 SYMATTR InstName U2 SYMBOL res 16 304 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 24.9 SYMBOL res 480 320 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 24.9 SYMBOL res 480 528 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 24.9 SYMBOL res 16 704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 24.9 SYMBOL res 160 704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 590 SYMBOL res 272 704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 24.9 SYMBOL res 368 704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 590 SYMBOL cap 0 336 R0 SYMATTR InstName C1 SYMATTR Value 100p SYMBOL cap 0 736 R0 SYMATTR InstName C2 SYMATTR Value 100p SYMBOL cap 464 352 R0 SYMATTR InstName C3 SYMATTR Value 82p SYMBOL cap 464 560 R0 SYMATTR InstName C4 SYMATTR Value 82p SYMBOL res 16 512 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 301 SYMBOL cap 0 544 R0 WINDOW 3 29 51 Left 2 SYMATTR Value 10µ SYMATTR InstName C5 SYMBOL References\\LTC6655-2.048 -304 560 R0 WINDOW 3 47 -87 Left 2 SYMATTR InstName U3 SYMBOL cap -512 608 R0 WINDOW 3 29 51 Left 2 SYMATTR Value 1µ SYMATTR InstName C6 TEXT 472 688 Left 2 !.option plotwinsize = 0\n.param length=1m c=length/65536\n.tran 0 {length} 0 {c} TEXT 728 408 Center 2 ;LTC2387-18\n18-bit 15Msps \nSAR ADC TEXT 8 248 Bottom 2 ;LT6201 - Dual 165MHz, Rail-to-Rail Input and Output, 0.95nV/sqrt(Hz) Low Noise, Op Amp Family\nLTC6655-2.048 - 0.25ppm Noise, Low Drift Precision References\nLTC2387-18 - 18-Bit, 15Msps SAR ADC\nSingle-Ended to Differential Amplifier for LTC2387-18 TEXT 472 784 Left 2 !.meas tran res1 avg V(OUT+) TEXT 472 808 Left 2 !.meas tran res2 avg V(OUT-) TEXT -616 816 Left 2 ;Notes:\n C1 & C2 can be adjusted to required bandwidth.\n If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n Component substitution and printed circuit board layout may significantly affect circuit performance or reliability.\n Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts.\n Copyright © 2016 Linear Technology Inc. All rights reserved. LINE Normal 568 440 616 292 LINE Normal 616 292 864 292 LINE Normal 568 436 616 584 LINE Normal 616 584 864 584 LINE Normal 864 292 864 580