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More stuff.

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s3xm3x 7 years ago
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e41983a817
commit
b725d1b182
11 changed files with 109 additions and 357 deletions
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  1. 7
      docs/bom/current.csv
  2. 5
      docs/bom/first_experiment.csv
  3. 17
      docs/bom/transimp.csv
  4. 6
      ltspice/transimpedance amplifier/001transimpedance_ac_sweep_100k.asc
  5. 87
      ltspice/transimpedance amplifier/002transimpedance_ac_sweep_1M.asc
  6. 87
      ltspice/transimpedance amplifier/002transimpedance_current_step_1M.asc
  7. 87
      ltspice/transimpedance amplifier/003transimpedance_ac_sweep_10k.asc
  8. 87
      ltspice/transimpedance amplifier/003transimpedance_current_step_10k.asc
  9. 2
      ltspice/transimpedance amplifier/clean.sh
  10. 35
      ltspice/transimpedance amplifier/raw_rc.asc
  11. 46
      octave/rc_filter.m

7
docs/bom/current.csv
View File

@ -0,0 +1,7 @@
Farnell,,
Article, Ordercode, Min. Quantity
Differential Amp,1827398,1
Opamp,2305612,1
100 Ohm, 2504961RL,5
Opamp,9425845,1
2N3904,2295749,2
1 Farnell
2 Article Ordercode Min. Quantity
3 Differential Amp 1827398 1
4 Opamp 2305612 1
5 100 Ohm 2504961RL 5
6 Opamp 9425845 1
7 2N3904 2295749 2

5
docs/bom/first_experiment.csv
View File

@ -1,5 +0,0 @@
Farnell,
BPW34FA,1212740
BPW34,1045425
UV LED,1057106
Opamp,2305615
1 Farnell
2 BPW34FA 1212740
3 BPW34 1045425
4 UV LED 1057106
5 Opamp 2305615

17
docs/bom/transimp.csv
View File

@ -0,0 +1,17 @@
Farnell,
Article, Ordercode, Min. Quantity
BPW34FA,1212740, 5
BPW34,1045425, 5
UV LED,1057106, 5
Opamp,2305615, 5
Jumper,2396303, 10
R 10k, 1160359, 3
R 100k, 2447551, 3
R 1M, 1576507, 3
R 10M, 9238115, 3
R 100M, 1605131, 3
C 10n, 2445369, 3
C 1n, 2496935, 3
C 100p, 2332782, 10
C 10p, 1759191, 10
C 1p, 1759179, 10
Can't render this file because it has a wrong number of fields in line 2.

6
ltspice/transimpedance amplifier/001transimpedance_ac_sweep_100k.asc
View File

@ -82,6 +82,6 @@ WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value {C}
TEXT -40 464 Left 2 !.include ad8616.cir
TEXT -40 488 Left 2 !.ac dec 100 1 10000000
TEXT -40 512 Left 2 !.param R = 100K
TEXT -40 536 Left 2 !.param C 1n
TEXT -40 488 Left 2 !.ac dec 1000 1 10000000
TEXT -40 512 Left 2 !.param R = 100k
TEXT -40 536 Left 2 !.param C = 1n

87
ltspice/transimpedance amplifier/002transimpedance_ac_sweep_1M.asc
View File

@ -1,87 +0,0 @@
Version 4
SHEET 1 1124 680
WIRE 176 -80 64 -80
WIRE 320 -80 240 -80
WIRE 64 16 64 -80
WIRE 160 16 64 16
WIRE 320 16 320 -80
WIRE 320 16 240 16
WIRE 192 128 192 112
WIRE 320 128 320 16
WIRE 64 144 64 16
WIRE 64 144 -48 144
WIRE 160 144 64 144
WIRE 448 144 448 128
WIRE -48 160 -48 144
WIRE 320 160 320 128
WIRE 320 160 224 160
WIRE 160 176 128 176
WIRE 192 208 192 192
WIRE 128 240 128 176
WIRE 128 240 80 240
WIRE 176 240 128 240
WIRE 448 240 448 224
WIRE 448 240 368 240
WIRE 368 256 368 240
WIRE -48 288 -48 240
WIRE 80 288 80 240
WIRE 176 288 176 240
WIRE 448 288 448 240
WIRE 80 400 80 368
WIRE 128 400 80 400
WIRE 176 400 176 352
WIRE 176 400 128 400
WIRE 448 400 448 368
WIRE 128 416 128 400
FLAG 192 112 V+
FLAG 448 128 V+
FLAG 448 400 V-
FLAG 368 256 0
FLAG 320 128 OUT
FLAG -48 288 0
FLAG -48 144 IN
FLAG 128 416 0
FLAG 192 208 V-
SYMBOL Opamps\\opamp2 192 96 R0
SYMATTR InstName U1
SYMATTR Value AD8615
SYMBOL res 256 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value {R}
SYMBOL voltage 448 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL voltage 448 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5V
SYMBOL current -48 160 R0
WINDOW 123 24 108 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1u
SYMATTR InstName I1
SYMATTR Value ""
SYMBOL cap 240 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL res 96 384 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value {R}
SYMBOL cap 192 352 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value {C}
TEXT -56 504 Left 2 !.include ad8615.cir
TEXT -56 528 Left 2 !.ac dec 100 1 10000000
TEXT -56 552 Left 2 !.param R=1000K
TEXT -56 576 Left 2 !.param C=100p

87
ltspice/transimpedance amplifier/002transimpedance_current_step_1M.asc
View File

@ -1,87 +0,0 @@
Version 4
SHEET 1 1124 680
WIRE 176 -80 64 -80
WIRE 320 -80 240 -80
WIRE 64 16 64 -80
WIRE 160 16 64 16
WIRE 320 16 320 -80
WIRE 320 16 240 16
WIRE 192 128 192 112
WIRE 320 128 320 16
WIRE 64 144 64 16
WIRE 64 144 -48 144
WIRE 160 144 64 144
WIRE 448 144 448 128
WIRE -48 160 -48 144
WIRE 320 160 320 128
WIRE 320 160 224 160
WIRE 160 176 128 176
WIRE 192 208 192 192
WIRE 128 240 128 176
WIRE 128 240 80 240
WIRE 176 240 128 240
WIRE 448 240 448 224
WIRE 448 240 368 240
WIRE 368 256 368 240
WIRE -48 288 -48 240
WIRE 80 288 80 240
WIRE 176 288 176 240
WIRE 448 288 448 240
WIRE 80 400 80 368
WIRE 128 400 80 400
WIRE 176 400 176 352
WIRE 176 400 128 400
WIRE 448 400 448 368
WIRE 128 416 128 400
FLAG 192 112 V+
FLAG 448 128 V+
FLAG 448 400 V-
FLAG 368 256 0
FLAG 320 128 OUT
FLAG -48 288 0
FLAG -48 144 IN
FLAG 128 416 0
FLAG 192 208 V-
SYMBOL Opamps\\opamp2 192 96 R0
SYMATTR InstName U1
SYMATTR Value AD8615
SYMBOL res 256 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value {R}
SYMBOL voltage 448 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL voltage 448 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5V
SYMBOL current -48 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value {I}
SYMBOL cap 240 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL res 96 384 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value {R}
SYMBOL cap 192 352 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value {C}
TEXT -456 112 Left 2 !.include ad8615.cir
TEXT -456 136 Left 2 !.step param I 0u 1u 0.1u
TEXT -456 160 Left 2 !.tran 0 1ms 0 100us
TEXT -456 184 Left 2 !.param R = 1000k
TEXT -456 208 Left 2 !.param C = 100n

87
ltspice/transimpedance amplifier/003transimpedance_ac_sweep_10k.asc
View File

@ -1,87 +0,0 @@
Version 4
SHEET 1 1124 680
WIRE 176 -80 64 -80
WIRE 320 -80 240 -80
WIRE 64 16 64 -80
WIRE 160 16 64 16
WIRE 320 16 320 -80
WIRE 320 16 240 16
WIRE 192 128 192 112
WIRE 320 128 320 16
WIRE 64 144 64 16
WIRE 64 144 -48 144
WIRE 160 144 64 144
WIRE 448 144 448 128
WIRE -48 160 -48 144
WIRE 320 160 320 128
WIRE 320 160 224 160
WIRE 160 176 128 176
WIRE 192 208 192 192
WIRE 128 240 128 176
WIRE 128 240 80 240
WIRE 176 240 128 240
WIRE 448 240 448 224
WIRE 448 240 368 240
WIRE 368 256 368 240
WIRE -48 288 -48 240
WIRE 80 288 80 240
WIRE 176 288 176 240
WIRE 448 288 448 240
WIRE 80 400 80 368
WIRE 128 400 80 400
WIRE 176 400 176 352
WIRE 176 400 128 400
WIRE 448 400 448 368
WIRE 128 416 128 400
FLAG 192 112 V+
FLAG 448 128 V+
FLAG 448 400 V-
FLAG 368 256 0
FLAG 320 128 OUT
FLAG -48 288 0
FLAG -48 144 IN
FLAG 128 416 0
FLAG 192 208 V-
SYMBOL Opamps\\opamp2 192 96 R0
SYMATTR InstName U1
SYMATTR Value AD8615
SYMBOL res 256 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value {R}
SYMBOL voltage 448 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL voltage 448 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5V
SYMBOL current -48 160 R0
WINDOW 123 24 108 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 100u
SYMATTR InstName I1
SYMATTR Value ""
SYMBOL cap 240 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL res 96 384 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value {R}
SYMBOL cap 192 352 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value {C}
TEXT -72 464 Left 2 !.include ad8615.cir
TEXT -72 488 Left 2 !.ac dec 100 1 10000000
TEXT -72 512 Left 2 !.param R = 10K
TEXT -72 536 Left 2 !.param C=1n

87
ltspice/transimpedance amplifier/003transimpedance_current_step_10k.asc
View File

@ -1,87 +0,0 @@
Version 4
SHEET 1 1124 680
WIRE 176 -80 64 -80
WIRE 320 -80 240 -80
WIRE 64 16 64 -80
WIRE 160 16 64 16
WIRE 320 16 320 -80
WIRE 320 16 240 16
WIRE 192 128 192 112
WIRE 320 128 320 16
WIRE 64 144 64 16
WIRE 64 144 -48 144
WIRE 160 144 64 144
WIRE 448 144 448 128
WIRE -48 160 -48 144
WIRE 320 160 320 128
WIRE 320 160 224 160
WIRE 160 176 128 176
WIRE 192 208 192 192
WIRE 128 240 128 176
WIRE 128 240 80 240
WIRE 176 240 128 240
WIRE 448 240 448 224
WIRE 448 240 368 240
WIRE 368 256 368 240
WIRE -48 288 -48 240
WIRE 80 288 80 240
WIRE 176 288 176 240
WIRE 448 288 448 240
WIRE 80 400 80 368
WIRE 128 400 80 400
WIRE 176 400 176 352
WIRE 176 400 128 400
WIRE 448 400 448 368
WIRE 128 416 128 400
FLAG 192 112 V+
FLAG 448 128 V+
FLAG 448 400 V-
FLAG 368 256 0
FLAG 320 128 OUT
FLAG -48 288 0
FLAG -48 144 IN
FLAG 128 416 0
FLAG 192 208 V-
SYMBOL Opamps\\opamp2 192 96 R0
SYMATTR InstName U1
SYMATTR Value AD8615
SYMBOL res 256 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value {R}
SYMBOL voltage 448 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL voltage 448 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5V
SYMBOL current -48 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value {I}
SYMBOL cap 240 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL res 96 384 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value {R}
SYMBOL cap 192 352 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value {C}
TEXT -40 512 Left 2 !.include ad8615.cir
TEXT -40 536 Left 2 !.step param I 0u 100u 10u
TEXT -40 560 Left 2 !.tran 0 1ms 0 1us
TEXT -40 584 Left 2 !.param R = 10K
TEXT -40 608 Left 2 !.param C = 100n

2
ltspice/transimpedance amplifier/clean.sh
View File

@ -1,2 +1,2 @@
#!/bin/bash
rm *.log *.raw *.plt
rm *.net *.log *.raw *.plt

35
ltspice/transimpedance amplifier/raw_rc.asc
View File

@ -0,0 +1,35 @@
Version 4
SHEET 1 880 680
WIRE 240 0 48 0
WIRE 240 32 240 0
WIRE 240 32 192 32
WIRE 288 32 240 32
WIRE 192 80 192 32
WIRE 48 96 48 0
WIRE 288 96 288 32
WIRE 192 224 192 160
WIRE 240 224 192 224
WIRE 288 224 288 160
WIRE 288 224 240 224
WIRE 48 240 48 176
WIRE 240 240 240 224
WIRE 240 240 48 240
WIRE 48 272 48 240
FLAG 48 272 0
SYMBOL cap 304 160 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL res 208 176 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL current 48 96 R0
WINDOW 123 24 108 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value ""
SYMATTR Value2 AC 10mA
TEXT -16 320 Left 2 !.ac dec 1000 1 10e6

46
octave/rc_filter.m
View File

@ -0,0 +1,46 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Author: Max
% Date: 13.04.2017
% File: rc_filter.m
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clear;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Vars
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
R = 100e3;
C = 1e-9;
f = linspace(1,10e6,300e3);
omega = 2*pi*f;
marg = 0.1;
fontsz = 30;
linewd = 5;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Filter equations
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
I = 1 ./ ( i*omega*R*C + 1);
Iabs = abs(I);
Iabslog = 20*log10(Iabs);
Imax = max(Iabslog);
Iabslog = Iabslog - Imax; % Normalize
I3dB(1:length(f)) = -3;
f3dB = 1/(R*C*2*pi)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Plot
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
p=semilogx(f,Iabslog,f,I3dB);
set(p, 'linewidth', linewd);
set(gca, 'fontsize', fontsz);
t = text(log10(f(length(f)/2)),-10, ['f3dB = ' num2str(f3dB/1000) ' kHz'] );
set(t, 'fontsize', fontsz);
ylabel('Normalized Resistance Magnitude/dB');
xlabel('f/Hz');
title('Frequency Response RC Filter');
grid on;
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