initial commit

examples/jigs/1228.asc

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+Version 4
+SHEET 1 1188 680
+WIRE 16 48 16 32
+WIRE 224 112 208 112
+WIRE 320 112 304 112
+WIRE 736 112 576 112
+WIRE 768 112 736 112
+WIRE 864 112 848 112
+WIRE 736 128 736 112
+WIRE -96 144 -288 144
+WIRE 16 144 16 128
+WIRE 16 144 -16 144
+WIRE -288 160 -288 144
+WIRE 16 176 16 144
+WIRE 320 176 16 176
+WIRE 592 176 576 176
+WIRE 688 176 672 176
+WIRE 320 240 16 240
+WIRE 736 240 736 208
+WIRE 736 240 576 240
+WIRE 784 240 736 240
+WIRE -288 272 -288 240
+WIRE -96 272 -288 272
+WIRE 16 272 16 240
+WIRE 16 272 -16 272
+WIRE 16 288 16 272
+WIRE 256 304 144 304
+WIRE 320 304 256 304
+WIRE 592 304 576 304
+WIRE 144 320 144 304
+WIRE 256 320 256 304
+WIRE 16 384 16 368
+WIRE 144 416 144 400
+WIRE 256 416 256 400
+WIRE 448 416 256 416
+WIRE 592 416 592 304
+WIRE 592 416 528 416
+WIRE 256 432 256 416
+WIRE 256 528 256 512
+FLAG 688 176 0
+FLAG 144 416 0
+FLAG 208 112 0
+FLAG 864 112 0
+FLAG 256 528 0
+FLAG 16 32 0
+FLAG 16 384 0
+FLAG 784 240 OUT
+SYMBOL voltage 576 176 R270
+WINDOW 0 32 56 VTop 2
+WINDOW 3 -32 56 VBottom 2
+SYMATTR InstName V1
+SYMATTR Value 15
+SYMBOL voltage 144 304 R0
+SYMATTR InstName V2
+SYMATTR Value -15
+SYMBOL res 320 96 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 270
+SYMBOL opamps\\LT1228 448 208 R0
+SYMATTR InstName U1
+SYMBOL res 720 112 R0
+SYMATTR InstName R3
+SYMATTR Value 470
+SYMBOL res 864 96 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R4
+SYMATTR Value 10
+SYMBOL res 240 304 R0
+SYMATTR InstName R5
+SYMATTR Value 1.24K
+SYMBOL res 240 416 R0
+SYMATTR InstName R6
+SYMATTR Value 6.19K
+SYMBOL res 432 400 M90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R7
+SYMATTR Value {R}
+SYMBOL res 0 144 M180
+WINDOW 0 36 76 Left 2
+WINDOW 3 36 40 Left 2
+SYMATTR InstName R1
+SYMATTR Value 100
+SYMBOL res 0 272 R0
+SYMATTR InstName R8
+SYMATTR Value 100
+SYMBOL res 0 128 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R9
+SYMATTR Value 10K
+SYMBOL res 0 256 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R10
+SYMATTR Value 10K
+SYMBOL voltage -288 144 R0
+WINDOW 123 24 138 Left 2
+WINDOW 39 24 117 Left 2
+SYMATTR InstName V3
+SYMATTR Value SINE(0 .1 10K)
+TEXT 640 448 Left 2 !.tran 3m\n.step param R list 10K 5K 2.5K 1.25K