Patent ID: 11894857
Assignee: SHANGHAI UNITED IMAGING MICROELECTRONICS TECHNOLOGY CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 15:
16. 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 plurality of sampling capacitors, and at least one of the plurality of sampling capacitors is configured to be connected to the outputs of the plurality of integrators, respectively; and
the readout circuit further comprises a randomizing circuit, and the randomizing circuit is configured to randomize an order in which the plurality of sampling capacitors are flip-flopped to the signal processor.