High-order multibit modulators and pseudo data-weighted-averaging in low-oversampling _spl Delta__spl Sigma_ ADCs for broad-band applications 2004
High-resolution low-power CMOS D_A converter 1989 4
High-speed voltage-controlled oscillator with quadrature outputs 1991
Improved circuits for the realization of switched-capacitor filters 1980
Improving phasor measurements under power system oscillations 2003