ANALOG-DIGITAL CONVERSION APPARATUS

摘要

For example, an A/D conversion apparatus having an 8−bit resolution is divided into a most significant bit converter (1−1) and a least significant bit converter (1−2), so that A/D conversion is performed on 4−bit basis. Thus, by reducing the number of conversion bits in each of the converters (1−1, 1−2), it is possible to reduce the number of uses of circuit elements such as a comparator and a voltage dividing resistor and reduce the size of a circuit such as an encoding circuit.