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

fYear

2007

fDate

16-18 April 2007

Firstpage

70

Lastpage

74

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IWASID.2007.373698

Filename

4244784