REDUNDANT-BIT-ADDED DIGITAL-ANALOG CONVERTER, ANALOG-DIGITAL CONVERTER, AND IMAGE SENSOR

摘要

A redundant-bit-added digital-analog converter has a first input terminal and a second input terminal and outputs a ramp voltage obtained by quantizing a voltage difference between a first voltage+ΔV and a second voltage−ΔV with n+1/2^q bits, when a voltage input to the first input terminal is the first voltage, a voltage input to the second input terminal is the second voltage, and ΔV=(first voltage-second voltage)/2^q+1 (where n is a natural number of 3 or more and q is a natural number of n−2 or less).