Patent ID: 8488032
Filing Date: 2013-07-16
Classification: G11C,H04N

Abstract:
1. An image sensor comprising: a pixel array including a plurality of pixels, each of the plurality of pixels being configured to output a reset signal and a corresponding image signal; a sample-and-hold array circuit configured to receive and sample-hold the plurality of reset signals and corresponding image signals, the sample-and-hold array circuit being further configured to sequentially output each of the plurality of reset signals through a first bus and each of the corresponding image signals through a second bus; and an output stage connected to the first bus and the second bus, the output stage being configured to cancel an effect of a parasitic capacitance of the first bus and the second bus, convert each reset signal and corresponding image signal to a single ended signal, and output the converted single ended signal as a digital image signal, wherein the output stage includes,