Title :
A 2.4GHz 40mW 40dB SNDR/62dB SFDR 60MHz bandwidth mirrored-image RF bandpass ΣΔ ADC in 90nm CMOS
Author :
Ryckaert, Julien ; Borremans, Jonathan ; Verbruggen, Bob ; Van Driessche, Joris ; Van der Perre, Liesbet ; Craninckx, Jan ; Van der Plas, Geert
Author_Institution :
IMEC, Leuven
Abstract :
A 6th order RF bandpass SigmaDelta ADC operating on the 2.4 GHz ISM band is presented. The bandpass loop filter is based on digitally programmable Gm-LC resonators. By using a mirrored-image sampling technique, the clock frequency is reduced to 3 GS/s, thereby reducing the power consumption. Implemented in a standard 90 nm CMOS process, the IC achieves 40 dB and 62 dB of SNDR and SFDR respectively on a 60 MHz bandwidth with 40 mW of power consumption.
Keywords :
CMOS integrated circuits; UHF integrated circuits; band-pass filters; image sampling; low-power electronics; resonator filters; sigma-delta modulation; 6th order RF bandpass SigmaDelta ADC; SFDR; SNDR; bandpass loop filter; bandwidth 60 MHz; bandwidth mirrored-image sampling technique; clock frequency reduction; digitally programmable Gm-LC resonator; frequency 2.4 GHz; power 40 mW; power consumption reduction; size 90 nm; standard CMOS process; Band pass filters; Bandwidth; CMOS integrated circuits; CMOS process; Clocks; Digital filters; Energy consumption; Radio frequency; Resonator filters; Sampling methods;
Conference_Titel :
Solid-State Circuits Conference, 2008. A-SSCC '08. IEEE Asian
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-2604-1
Electronic_ISBN :
978-1-4244-2605-8
DOI :
10.1109/ASSCC.2008.4708802
