Active pixel sensor circuits based on negative feedback with an interting amplifier and their applications

Abstract

This paper describes active pixel sensor circuits using an inverting amplifier for their applications to high-speed image sensors with a global shutter and time-of-flight (TOF) range CMOS image sensors. The negative feedback using the inverting amplifier is useful for achieving high-speed and high-efficiency signal charge transfer in the pixels, leading to low noise signal detection in high-speed sensor pixels, and high-resolution TOF range imaging. The performance of the active pixel circuits for high-speed and TOF range sensors are analyzed.