Open AccessEnergy‐efficient switching scheme in SAR ADC for biomedical electronics
Author(s) -
Tong Xingyuan,
Ghovanloo Maysam
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.4272
Subject(s) - successive approximation adc , scheme (mathematics) , electronics , electronic engineering , energy (signal processing) , computer science , electrical engineering , engineering , capacitor , physics , voltage , mathematics , mathematical analysis , quantum mechanics
An energy‐efficient switching scheme for a low‐power successive approximation register (SAR) analogue‐to‐digital converter (ADC) is proposed. Taking the parasitic capacitance of the capacitor array into consideration, the average switching energy of the proposed scheme can be reduced by 97.4% compared with the conventional architecture. The proposed scheme also reduces the number of capacitors in the capacitor array by 75.5% and hence achieves area efficiency with high performance.