Book Analog Interfacing to Embedded Microprocessors
-10 44.6K 2.04v
0 28.1K 1.84v
10 18.2K 1.61v
25 10K 1.25v
30 8.276K 1.13v
40 6.406K .976v
50 4.08K .7244v
70 2.954K .569v
100 1229 W .273v
Now, say that we want to measure temperature between 10 degrees and 40
degrees with an accuracy of at least three A/D steps per degree. If we convert
the range in the table to ADC values, we get this:
1.61
10 degrees: digital word = ¥ 256 = 82
5
annaabi.ee 
