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

Claim 15:
16. The analog-to-digital conversion circuit according to claim 10, wherein the analog-to-digital conversion circuit further comprises a shared conversion module configured to convert quantized margin signals of the first analog signals of N channels,
the shared conversion module includes V first shared capacitors and V sets of first shared switches, and the shared conversion module is connected to the N sampling and conversion modules and the comparator, respectively, wherein V is an integer greater than or equal to 1,
wherein the control module is further configured to:
take the U-th second analog signal as a quantized margin signal; and
during the (U+1)-th to (U+V)-th analog-to-digital conversions in the i-th conversion cycle of the analog-to-digital conversion phase, control opened/closed states of the V sets of first shared switch in the shared conversion module to perform V analog-to-digital conversions on the quantized margin signal of the i-th channel in a successive approximation manner.