US 11,894,857 B2
Readout circuit, signal quantizing method and device, and computer device
Rong Wu, Irvine, CA (US); Longheng Luo, Shanghai (CN); Jieyou Zhao, Shanghai (CN); and Mingfeng Chen, Shanghai (CN)
Assigned to Shanghai United Imaging Microelectronics Technology Co., Ltd., Shanghai (CN)
Filed by Shanghai United Imaging Microelectronics Technology Co., Ltd., Shanghai (CN)
Filed on Mar. 15, 2022, as Appl. No. 17/695,066.
Prior Publication US 2022/0209783 A1, Jun. 30, 2022
Int. Cl. H03M 1/12 (2006.01); H03M 1/06 (2006.01); H03M 1/80 (2006.01); H03M 1/18 (2006.01)
CPC H03M 1/1245 (2013.01) [H03M 1/0648 (2013.01); H03M 1/183 (2013.01); H03M 1/802 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A readout circuit, comprising:
a signal sampler, comprising a plurality of channels;
a plurality of integrators, connected to the plurality of channels and having a one-to-one relationship with the plurality of channels;
a signal processor, comprising a first operational amplifier, a sampling input of the first operational amplifier being connected to outputs of the plurality of integrators, respectively; and
an analog-digital converter, an input of the analog-digital converter being connected to an output of the first operational amplifier;
wherein the readout circuit further comprises a signal modelling channel;
the signal modelling channel comprises a second operational amplifier; and
an output of the second operational amplifier is an output of the signal modelling channel and is connected to the input of the analog-digital converter.