Documents A Triple-mode Continuous-Time Sigma-Delta Modulator With Switched-Capacitor Feedback DAC

IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 38, NO. 12, DECEMBER 2003 2069 A Triple-Mode Continuous-Time Modulator With Switched-Capacitor Feedback DAC for a GSM-EDGE/CDMA2000/UMTS…