IMAGE SYSTEM, SOLID-STATE IMAGING DEVICE SEMICONDUCTOR INTEGRATED CIRCUIT, AND DIFFERENTIAL OUTPUT METHOD USED IN TH ...

摘要

An image system for converting an optical image of an object guided through an optical system (A1) into an electric signal by an amplification MOS sensor and processing the converted signal. The amplification MOS sensor includes a photoelectric conversion element (62) and an amplification MOS transistor (64) connected to the photoelectric conversion element (62). The sensor also has an output circuit and a noise elimination circuit (26, 28, 30, 32, 41). The output circuit amplifies a signal of the photoelectric conversion element (62) and outputs the amplified signal at a first timing, and outputs noise not relevant to the signal of the photoelectric conversion element (62) at a second timing. The noise elimination circuit has the same impedance as seen from the output circuit at the first and second timings and produces a difference between the outputs of the output circuit at the first timing and the second timing.