公开(公告)号：US11356110B1

公开(公告)日：2022-06-07

申请号：US17328716

申请日：2021-05-24

Applicant: University of Electronic Science and Technology of China

Inventor： Hua Fan ,  Xiaohu Qi ,  Qianqian Deng ,  Quanyuan Feng ,  Shaoqing Lu ,  Huaying Su ,  Guosong Wang

IPC: H03M1/12 ,  H03M1/06 ,  G04F10/00

Abstract: A voltage-to-time converter (VTC) for a time-domain analog-to-digital converter is disclosed, which provides a time-domain analog-to-digital converter (T-ADC) with low power consumption and high precision. By combining the advantages of current-starving technology, current mirror technology, and body biasing technology, compared with the traditional structure, the VTC and T-ADC achieve excellent performance, such as low power consumption, high linearity, wide input dynamic range, and strong anti-interference to PVT variations. Compared with the traditional voltage-to-time converter, the disclosed voltage-to-time converter has a wider input dynamic range and higher linearity. The input voltage is connected to transistors in the circuit as a body bias, resulting in a very small body current, and no apparent increase in power consumption. The design of a low-power voltage-to-time converter is realized.