Solid-state imaging device, method for driving solid-state imaging device, and electronic apparatus with sram including a virtual power supply and virtual reference potential

Abstract

Provided are a solid-state imaging device, a method for driving a solid-state imaging device and an electronic apparatus. A memory part is formed using an SRAM serving as an ADC memory, and an ADC code is written into and read from the memory part under control of a reading part. In the SRAM, a power gating transistor is additionally provided to both of a power supply node (between a power supply and a virtual power supply node) and a ground node (between a virtual reference potential node and a reference potential) for the purposes of blocking the shoot-through currents from the bit cells during the writing operation. The power gating transistors are controlled by the reading part so as to operate as either a weak current source or switch.