Title :
A 400MHz 5th-order CMOS continuous-time switched-current Σ Δ modulator
Author :
Luh, L. ; Choma, J., Jr. ; Draper, J.
Author_Institution :
University of Southern California, Los Angeles, CA
Abstract :
A 5th-order continuous-time switched-current ΣΔ modulator was implemented in a 0.6µm CMOS process. A high sampling speed was achieved by using open-loop continuous-time integrators and differential current switches. The performance was optimized by using a 6th- order transfer function. With a 400MHz sampling rate and 64× OSR, this modulator achieved a maximum 56dB SNDR and 62dB dynamic range in a 3.1MHz bandwidth.
Keywords :
Chromium; Clocks; Flip-flops; Virtual colonoscopy;
Conference_Titel :
Solid-State Circuits Conference, 2000. ESSCIRC '00. Proceedings of the 26rd European
Conference_Location :
Stockholm, Sweden
