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What are the accuracy of the A/D conversion?

Latest Updated:02/27/2012

Question:

Questions about the accuracy of the A/D converter

  1. Can "zero error" and "full scale error" be interpreted to mean the same thing as the "offset error" and "gain error" definitions which appear in the hardware manual?
  2. Is the "integral nonlinearity error (INL)" included in the "absolute accuracy"?
  3. Is it correct to understand that the maximum error will be absolute accuracy + the differential nonlinearity error?

Answer:

  1. Yes, you can.
  2. Yes, it is included.
  3. No, the differential nonlinearity error does not directly affect the A/D conversion result placed on the vertical axis, so you do not have to add up those values. However, the differential nonlinearity error is included in the absolute accuracy as an integral nonlinearity error.
Suitable Products
M32C/8A
M32C/88
M32C/87
M32C/85
M32C/84
M32C/83
M32C/80
M16C/62A
M16C/62A(M16C/62T)
M16C/62M
M16C/62N
M16C/62N(M3062GF8NFP, M3062GF8NGP)
M16C/62P
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M16C/64C
M16C/65
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