SOLID-STATE IMAGE SENSOR AND CAMERA SYSTEM

摘要

There is provided a solid-state image sensor including a pixel array unit in which pixels are arrayed, the pixel including a photodiode converting an optical signal into an electrical signal, and a readout unit which reads out an analog image signal from the pixel to a signal line and processes the read out analog pixel signal in a unit of column. The readout unit includes a ΔΣ modulator which has a function to convert the analog pixel signal in to a digital signal, and an amplifier which is arranged on an input side of the ΔΣ modulator and amplifies the analog pixel signal read out to the signal line using a set gain to input the signal to the ΔΣ modulator.

主权项

1. A solid-state image sensor comprising:
a pixel configured to convert light into an analog pixel signal and output the analog pixel signal onto a signal line, the signal line is electrically connected directly to a first terminal of an input capacitance; an amplifier configured to convert the analog pixel signal into an analog amplified signal by amplifying the analog pixel signal, a second terminal of the input capacitance is electrically connected directly to an input terminal of the amplifier; and a converter configured to convert the analog amplified signal into digital data, an output terminal of the amplifier is electrically connected directly to an input terminal of the converter.