Twice‐input variable‐resolution single‐side switching scheme without reset energy for SAR ADC
Year: 2024
Type: article
Abstract: A twice‐input variable‐resolution single‐side switching scheme without reset energy is proposed for successive approximation register (SAR) analogue‐to‐digital converters (ADCs). The proposed switching scheme is based on semi‐resting DAC technology to design a four‐array architecture capable of handling twice the swing of the signal input while reducing the capacitor array size. The technique of top‐plate sampling and monotonic shift is utilized so that no switching energy is generated for the first three comparisons. The proposed scheme utilizes full‐capacitor split, bridged switch, and C‐2C dummy capacitor technology, which reduces average switching energy consumption by 99.8% compared to conventional schemes and enables ADC variable resolution function, making the SAR ADC more suitable for IoT applications.
Source: Electronics Letters
DOI: 10.1049/ell2.70018
Authors: Bin Tang, Yunfeng Hu, QingMing Huang, Lexing Hu, Chaoyi Chen, Bin Li, Zhaohui Wu
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,540
Award: G3876911790
OpenAlex ID: W4403399602