M. Keskin Un-Ku Moon Gabor C. Temes Low-voltage low-sensitivity switched-capacitor bandpass Sigma-Delta modulator. 348-351 2001 conf/iscas/2001 ISCAS (1) http://doi.ieeecomputersociety.org/10.1109/ISCAS.2001.921864 db/conf/iscas/iscas2001-1.html#KeskinMT01