Title :
A Low Voltage High Frequency Programmable Gm-C Bandpass Filter
Author :
Zhang, Jian-Qin ; Li, Kai-Hang ; Wang, Ri-Yan
Author_Institution :
Dept. of Phys., Xiamen Univ., Xiamen
Abstract :
A low voltage high frequency CMOS continuous time band-pass filter with programmable center frequency and quality factor is presented. The operational transconductance amplifier (OTA) in this Gm-C filter design is implemented by a low-voltage simple cascode OTA. The transconductance can be digitally programmable. Simulations show that the center frequency can be tuned from 400 MHz to 1 GHz for a 2.0 pF capacitive load. This filter has been designed in a TSMC 0.18 mu digital process with 1.8 V power supplies and consumes around 32 mW of power.
Keywords :
CMOS digital integrated circuits; Q-factor; band-pass filters; circuit tuning; continuous time filters; low-power electronics; operational amplifiers; programmable filters; OTA; capacitance 2 pF; continuous time programmable Gm-C bandpass filter; frequency 400 MHz to 1 GHz; low voltage high frequency CMOS; operational transconductance amplifier; quality factor; simple cascode OTA; size 0.18 mum; tuning; voltage 1.8 V; Band pass filters; Bandwidth; Digital filters; Low voltage; Matched filters; Physics; Q factor; Radio frequency; Transconductance; Transconductors;
Conference_Titel :
Anti-counterfeiting, Security, Identification, 2007 IEEE International Workshop on
Conference_Location :
Xiamen, Fujian
Print_ISBN :
1-4244-1035-5
Electronic_ISBN :
1-4244-1035-5
DOI :
10.1109/IWASID.2007.373698
