Title :
A 0.13μm 1.5V CMOS I/Q Downconverter with Digital Adaptive IIP2 Calibration
Author :
Dufrêne, Krzysztof ; Boos, Zdravko ; Weigel, Robert
Author_Institution :
Erlangen-Nuremberg Univ., Erlangen
Abstract :
A low-voltage I/Q downconverter with digital adaptive IIP2 calibration is presented. The system maintains high linearity over time by continuously updating tuning codes in response to varying operating conditions. A prototype is fabricated in a 0.13μm RF CMOS process. At 2GHz LO, it draws 48mA from a 1.5V supply
Keywords :
CMOS integrated circuits; convertors; 0.13 micron; 1.5 V; 2 GHz; 48 mA; CMOS I/Q downconverter; RF CMOS process; digital adaptive IIP2 calibration; Baseband; Calibration; Counting circuits; Distortion; Least squares approximation; Linearity; Mixers; Radio frequency; Tuners; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0852-0
Electronic_ISBN :
0193-6530
DOI :
10.1109/ISSCC.2007.373600
