1 files changed, 94 insertions, 0 deletions
diff --git a/emf_detector_butterworth_amp.asc b/emf_detector_butterworth_amp.asc
new file mode 100644
index 0000000..115314e
--- /dev/null
+++ b/emf_detector_butterworth_amp.asc
@@ -0,0 +1,94 @@
+Version 4
+SHEET 1 880 680
+WIRE 96 -112 -528 -112
+WIRE -48 -48 -144 -48
+WIRE 320 -48 16 -48
+WIRE -528 -32 -528 -112
+WIRE -528 64 -528 48
+WIRE 128 64 112 64
+WIRE -528 80 -528 64
+WIRE -256 80 -336 80
+WIRE -144 80 -144 -48
+WIRE -144 80 -176 80
+WIRE -112 80 -144 80
+WIRE 32 80 -32 80
+WIRE 80 80 32 80
+WIRE 208 96 208 32
+WIRE 208 96 144 96
+WIRE 560 96 208 96
+WIRE 80 112 64 112
+WIRE 32 128 32 80
+WIRE 32 128 -64 128
+WIRE 96 128 96 -112
+WIRE 112 128 96 128
+WIRE 208 128 208 96
+WIRE 32 176 32 128
+WIRE 64 224 64 112
+WIRE 208 224 208 208
+WIRE 208 224 64 224
+WIRE 320 224 320 -48
+WIRE 320 224 208 224
+WIRE 208 240 208 224
+WIRE -528 384 -528 160
+WIRE 128 384 128 64
+WIRE 128 384 -528 384
+WIRE -64 480 -64 128
+WIRE 32 480 -64 480
+WIRE 96 528 96 480
+WIRE 560 528 560 96
+WIRE 560 528 96 528
+WIRE -144 576 -144 80
+WIRE 32 576 -144 576
+WIRE 96 576 96 528
+FLAG 32 240 0
+FLAG 208 320 0
+FLAG -336 160 0
+FLAG -528 64 0
+FLAG 208 32 out
+FLAG -144 80 stg1
+FLAG 32 80 stg2
+SYMBOL Opamps\\AD8542 112 160 M180
+SYMATTR InstName U1
+SYMBOL Misc\\signal -336 64 R0
+WINDOW 123 24 132 Left 2
+WINDOW 39 24 132 Left 2
+SYMATTR InstName V1
+SYMATTR Value ""
+SYMATTR Value2 AC 1.
+SYMBOL res -160 64 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R1
+SYMATTR Value 220k
+SYMBOL res -16 64 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 220k
+SYMBOL cap 16 -64 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName C1
+SYMATTR Value 1n
+SYMBOL cap 48 240 R180
+WINDOW 0 24 56 Left 2
+WINDOW 3 24 8 Left 2
+SYMATTR InstName C2
+SYMATTR Value 470p
+SYMBOL res 192 112 R0
+SYMATTR InstName R3
+SYMATTR Value 1k
+SYMBOL res 192 224 R0
+SYMATTR InstName R4
+SYMATTR Value 100
+SYMBOL voltage -528 -48 R0
+WINDOW 123 0 0 Left 0
+WINDOW 39 0 0 Left 0
+SYMATTR InstName V2
+SYMATTR Value 2.5
+SYMBOL voltage -528 64 R0
+WINDOW 123 0 0 Left 0
+WINDOW 39 0 0 Left 0
+SYMATTR InstName V3
+SYMATTR Value 2.5
+TEXT -562 390 Left 2 !.ac dec 250 0.1 10meg