Title :
A low power 1.3GHz dual-path current mode Gm-C filter
Author :
Gambhir, Manisha ; Dhanasekaran, Vijay ; Silva-Martinez, Jose ; Sánchez-Sinencio, Edgar
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX
Abstract :
A class-AB, dual path building block for Gm-C filter that has high linearity and high PSRR is presented. The class-AB action provides good linearity and gm/Id while the dual path approach solves the PSRR problem associated with conventional class-AB OTA. A current-mode 4th order Butterworth filter designed using the proposed building block in 0.13 mum CMOS technology provides 54.2 dB IM3 and 52 dB SNR in 1.3 GHz bandwidth while consuming as low as 24 mW. It occupies 0.1 mm2.
Keywords :
Butterworth filters; CMOS integrated circuits; current-mode circuits; low-pass filters; operational amplifiers; CMOS technology; PSRR; bandwidth 1.3 GHz; class-AB OTA; current-mode Butterworth filter; dual path building block; low power dual-path current mode Gm-C filter; CMOS technology; Distortion; Energy consumption; Filters; Frequency; Linearity; MOS devices; Signal to noise ratio; Transconductance; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 2008. CICC 2008. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2018-6
Electronic_ISBN :
978-1-4244-2019-3
DOI :
10.1109/CICC.2008.4672184
