Patent ID: 11876528
Assignee: TSINGHUA UNIVERSITY
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 27:
28. An analog-to-digital conversion circuit comprising:
N sampling and conversion modules connected in parallel, configured to simultaneously sample and sequentially convert first analog signals of N channels to output second analog signals, wherein each of the sampling and conversion modules includes a plurality of sampling capacitors connected in parallel, wherein N is an integer greater than 1;
a comparator connected to the N sampling and conversion modules, configured to compare the second analog signals respectively to obtain comparison signals; and
a control module connected to the N sampling and conversion modules and the comparator, configured to control the N sampling and conversion modules to output converted digital signals based on the comparison signals; wherein the analog-to-digital conversion circuit further comprises a shared conversion module including a plurality of shared capacitors connected in parallel, the module being configured to convert quantized margin signals of the first analog signals of the N channels.