Title :
A 1-V 100-dB dynamic range 24.4-kHz bandwidth delta-sigma modulator
Author :
Chia-Ling Chang ; Jieh-Tsorng Wu
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
A 2-1 MASH delta-sigma modulator (DSM) was fabricated using a 90nm CMOS technology. Operating at 6.25 MHz clock rate, this chip consumes 860 μW under a 1 V supply. The over-sampling ratio is 128, and the signal-bandwidth is 24.4 kHz. This chip achieves a performance of 88 dB SNDR and 90 dB SNR. Its dynamic range is 100 dB. The chip area is 0.44 mm2.
Keywords :
CMOS integrated circuits; delta-sigma modulation; 2-1 MASH delta-sigma modulator; CMOS technology; bandwidth 24.4 kHz; clock rate; frequency 6.25 MHz; over-sampling ratio; power 860 muW; signal-bandwidth; size 90 nm; voltage 1 V; Capacitors; Dynamic range; Modulation; Signal to noise ratio; Solid state circuits; Switches;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6571971
