TY - GEN
T1 - A 0.5V 1KS/s 2.5nW 8.52-ENOB 6.8fJ/conversion-step SAR ADC for biomedical applications
AU - Lu, Tsung Che
AU - Van, Lan-Da
AU - Lin, Chi Sheng
AU - Huang, Chun Ming
PY - 2011
Y1 - 2011
N2 - 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 the measurement results, the 0.18μm CMOS prototype chip with the total DAC capacitance of 2.765pF consumes 2.5nW and achieves a SNDR of 53.05dB under a 0.5V supply voltage at 1KS/s with a Nyquist input. The resulting FOM is 6.8fJ/conversion-step.
AB - 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 the measurement results, the 0.18μm CMOS prototype chip with the total DAC capacitance of 2.765pF consumes 2.5nW and achieves a SNDR of 53.05dB under a 0.5V supply voltage at 1KS/s with a Nyquist input. The resulting FOM is 6.8fJ/conversion-step.
UR - http://www.scopus.com/inward/record.url?scp=80455150164&partnerID=8YFLogxK
U2 - 10.1109/CICC.2011.6055325
DO - 10.1109/CICC.2011.6055325
M3 - Conference contribution
AN - SCOPUS:80455150164
SN - 9781457702228
T3 - Proceedings of the Custom Integrated Circuits Conference
BT - 2011 IEEE Custom Integrated Circuits Conference, CICC 2011
T2 - 33rd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2011
Y2 - 19 September 2011 through 21 September 2011
ER -