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

Claim 4:
5. The analog-to-digital conversion circuit according to claim 3, wherein in the i-th conversion cycle of the analog-to-digital conversion phase, the first conversion switch of the i-th sampling and conversion module is closed, and the analog-to-digital conversion circuit performs U analog-to-digital conversions on the first analog signal of the i-th channel in a successive approximation manner,
for a u-th analog-to-digital conversion of the i-th conversion cycle, the i-th sampling and conversion module outputs a u-th second analog signal based on the first analog signal of the i-th channel and a u-th first control signal, wherein 1≤u≤U and u is an integer,
the comparator compares the u-th second analog signal with the reference signal to output the first comparison signal of a u-th comparison,
based on u<U, the control module outputs the (u+1)-th first control signal based on the first comparison signal of the u-th comparison, and
based on u=U, the control module outputs a first digital signal corresponding to the first analog signal of the i-th channel based on the first comparison signal of the U-th comparison.