DUAL SAMPLE-AND-HOLD CIRCUIT WITH RESISTIVE GAIN

摘要

An image processing circuit includes a first dual sample-and-hold circuit that samples a first data and a second data from a first pixel, a second dual sample-and-hold circuit that samples a third data and a fourth data from a second pixel, a voltage-to-current circuit including a resistor and a current source, that receives the first data and the second data to output a first difference data, and that receives the third data and the fourth data to output a second difference data; and an analog-to-digital converter that converts the first and second difference data from an analog form to a digital form.