Photoelectric Conversion Device, Image Pickup System, and Driving Method Of Photoelectric Conversion Device

摘要

A photoelectric conversion device includes analog signal output units including pixels and configured to output analog signals based on pixels, and signal processing units. Each of the signal processing units is provided correspondingly to one of the analog signal output units and including a gain application unit configured to apply a gain to an analog signal by using only passive elements and an AD conversion unit. In the gain application unit, a portion that contributes to application of a gain to the analog signal is constituted only of passive elements. The gain application unit selectively outputs a first amplified signal obtained by applying a first gain to the analog signal or a second amplified signal obtained by applying a second gain to the analog signal smaller than the first gain. The AD conversion unit converts, from analog to digital, the first or second amplified signal.

主权项

1. A photoelectric conversion device comprising:
a plurality of analog signal output units including a plurality of pixels, each of the plurality of analog signal output units configured to output an analog signal based on a pixel of the plurality of pixels; and a plurality of signal processing units; each of the plurality of signal processing units being provided correspondingly to one of the plurality of analog signal output units and including a gain application unit and an AD conversion unit, the gain application unit being configured to apply a gain to an analog signal, within the gain application unit, a portion that contributes to application of a gain to the analog signal being constituted only of passive elements, the gain application unit being configured to selectively output a first amplified signal or a second amplified signal, the first amplified signal being a signal obtained by applying a first gain to the analog signal, and the second amplified signal being a signal obtained by applying a second gain, smaller than the first gain, to the analog signal, and the AD conversion unit being configured to convert, from analog to digital, the first amplified signal or the second amplified signal output from the gain application unit.