An 8-bit successive approximation analog-to-digital converter (ADC) for ultra low power applications is presented. It is designed in a standard 0.13μm CMOS process technology. The design can operate with low voltage supplies down to 0.45 V. It makes use of sub-threshold transistor operation to achieve nanowatts of power consumption at sample rates exceeding 60kS/s. A specially designed switch allows large input swings. Post layout simulations show an INL and DNL of approximately 0.3LSB and 0.45LSB respectively.

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Conference ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
Citation
Abdelhalim, K. (Karim), MacEachern, L, & Mahmoud, S. (Samy). (2006). A nanowatt ADC for ultra low power applications. Presented at the ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems.