A 98.6 dB SNDR SAR ADC with a mismatch error shaping technique implemented with double sampling

• Main Authors: Yang, Chuanshi, Qiu, Lei, Tang, Kai, Zheng, Yuanjin
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering; High Resolution; High Linearity
• Online Access: https://hdl.handle.net/10356/162055
• Institution: Nanyang Technological University

A novel mismatch error shaping (MES) method is proposed in noise-shaping (NS) SAR ADCs to break the SNDR limitation caused by DAC mismatch induced non-linearity. Through sampling the signal twice for one conversion, the input range of the ADC is increased to 2V {ref}. After the first sampling, only...