Conference Paper

An 8μW 100kS/s successive approximation ADC for biomedical applications

Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu
DOI: 10.1109/LISSA.2009.4906739 Conference: Life Science Systems and Applications Workshop, 2009. LiSSA 2009. IEEE/NIH
Source: IEEE Xplore


A successive approximation analog-to-digital converter (SA-ADC) for biomedical application is presented. It is based on 0.18-mum standard CMOS technology and operates at low supply voltage at 1 V. Boosted switch for sample-and-hold stage, split capacitor array for DAC, and clocked rail-to-rail comparator are used to achieve low-power consumption. The ADC has signal-to-noise-and-distortion ratio of 53 dB for supply voltage of 1 V, at sampling rate of 100 kS/s and power consumption of 8 muW.

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