@article{P101.136, author={Rombouts, P. and De Wilde, W. and Weyten, L.}, title={A 13.5-b 1.2-V Micropower Extended Counting A/D Converter}, journal={IEEE Journal of Solid-State Circuits}, year={2001}, month={2}, volume={36}, number={2}, pages={176-183}, publisher={IEEE}, series={IEEE Journal of Solid-State Circuits}, }