A 0.5V 1KS/s 2.5nW 8.52-ENOB 6.8fJ/conversion-step SAR ADC for biomedical applications

A low-FOM SAR ADC using the leakage reduction bootstrapped switch (LRBS) to achieve a satisfactory ENOB and using a low-power approach with a low voltage, low sampling rate, and low-DAC-capacitance structure is presented for biomedical applications. LRBS is proposed to alleviate the leakage caused by the low-power approach to increase SNDR and ENOB. From… (More)