Formulas used in A/D & D/A conversion Resolution=Vref/2n … …
%Resolution=100%/2n Sampling Formula for an
input signal of Fin
and a sampling frequency of Fsamp: |
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Resolution Diagram |
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|
1-bit |
2-bit |
3-bit |
4-bit |
5-bit |
Vref |
|
|
|
|
|
31/32 |
|
|
|
1111 |
11111 |
15/16 |
11110 |
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29/32 |
1110 |
11101 |
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7/8 |
11100 |
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27/32 |
110 |
1101 |
11011 |
||
13/16 |
11010 |
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25/32 |
1100 |
11001 |
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3/4 |
11000 |
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23/32 |
10 |
101 |
1011 |
10111 |
|
11/16 |
10110 |
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21/32 |
1010 |
10101 |
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5/8 |
10100 |
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19/32 |
100 |
1001 |
10011 |
||
9/16 |
10010 |
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17/32 |
1000 |
10001 |
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1/2 |
10000 |
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15/32 |
0 |
01 |
011 |
0111 |
01111 |
7/16 |
01110 |
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13/32 |
0110 |
01101 |
|||
3/8 |
01100 |
||||
11/32 |
010 |
0101 |
01011 |
||
5/16 |
01010 |
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9/32 |
0100 |
01001 |
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1/4 |
01000 |
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7/32 |
00 |
001 |
0011 |
00111 |
|
3/16 |
00110 |
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5/32 |
0010 |
00101 |
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1/8 |
00100 |
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3/32 |
000 |
0001 |
00011 |
||
1/16 |
00010 |
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1/32 |
0000 |
00001 |
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0 |
00000 |
rev 11/21/04