Solid-state imaging element, imaging device, and solid-state imaging element control method

An imaging device, comprising:

• a pixel array section that includes a plurality of pixels, wherein each of the plurality of pixels is configured to generate a pixel signal;
• a test signal source configured to generate a test signal of a predetermined level;
• an analog-to-digital converter configured to one of increase or decrease an analog signal according to an analog gain selected from among a plurality of analog gains, and convert the one of increased or decreased analog signal to a digital signal;
• an input switching section configured to input, as the analog signal, either the test signal or the pixel signal to the analog-to-digital converter;
• a correction value calculation section configured to obtain, based on the test signal and the digital signal, a correction value for correcting an error in the selected analog gain, and output the correction value;
• and
• a correction section configured to correct the digital signal according to the outputted correction value.

A solid-state imaging element control method, comprising:

• generating a test signal of a predetermined level;
• one of increasing or decreasing an analog signal according to an analog gain selected from among a plurality of analog gains, and converting the one of increased or decreased analog signal to a digital signal;
• inputting, as the analog signal, either the test signal or a pixel signal to an analog-to-digital converter;
• obtaining, based on the test signal and the digital signal, a correction value for correcting an error in the selected analog gain, and outputting the correction value;
• and
• correcting the digital signal according to the outputted correction value.