@article{P111.106, author={De Vuyst, Bart and Rombouts, Pieter}, title={A 5-MHz 11-Bit Self-Oscillating sigma delta modulator with a delay-based phase shifter in 0.025 mm(2)}, journal={IEEE JOURNAL OF SOLID-STATE CIRCUITS}, year={2011}, volume={46}, number={8}, pages={1919-1927}, }