To reduce influences of noise upon a comparator when obtaining compensation data to be used by a D/A converter for compensating a DC offset voltage of an analog output signal by successive comparison operation of the comparator.
This electronic circuit is equipped with a D/A converting circuit 2, a comparator 3 for comparing voltage of the analog signal outputted from the D/A converting circuit with a DC offset voltage in an output signal of a circuit 1 to be corrected, an offset compensation register 4 for obtaining each bit of the compensation data to be inputted to the D/A converting circuit so as to compensate the DC offset voltage by the successive comparison on the basis of the comparison result of the comparator 3, and a register 5 for majority decision for storing N pieces of values regarding each of specified bits in order to perform majority decision on the basis of the N pieces of values obtained by comparison for N times (N is an odd number equal to or larger than 3).
Nao Iku Suzuki
Masaaki Utsunomiya
Atsushi Watanabe
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