Title :
Floating capacitor switching SAR ADC
Author :
Kuo, C.H. ; Hsieh, C.E.
Author_Institution :
Dept. of Appl. Electron. Technol., Nat. Taiwan Normal Univ., Taipei, Taiwan
Abstract :
An energy-efficiency floating-capacitor switching (FCS) scheme is proposed for successive approximation register (SAR) analogue-to-digital converters (ADCs). By rearranging the switching order from the smallest capacitor to the largest one, the switching energy can be significantly reduced, especially in the first several DAC switchings. With the presented scheme, a 97.66% less switching energy can be achieved compared to the conventional architecture (Ginsburg and Chandrakasan, 2005).
Keywords :
analogue-digital conversion; capacitor switching; digital-analogue conversion; DAC switchings; FCS scheme; analogue-to-digital converters; energy-efficiency floating-capacitor switching scheme; floating capacitor switching SAR ADC; successive approximation register;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0822
