Title :
Wideband reconfigurable CMOS Gm-C filter For wireless applications
Author :
Gao Zhiqiang ; Wang Jinxiang ; Lai Fengchang ; Yu Mingyan ; Zhang Zhongzhao
Author_Institution :
Microelectron. Center of Harbin Inst. of Technol., Harbin, China
Abstract :
In this paper, a reconfigurable, highly linear, active-Gm-C filter exhibiting a wide bandwidth is presented. The filter uses a new high-frequency, linear operational transconductance amplifier. The operational amplifiers used are based on two new crosscoupled pairs with flipped voltage followers(FVF) that allows optimized high linear, high frequency filter performance. A 3rd filter prototype has been fabricated in 0.18um CMOS process. Simulated results show the filter is tunable in frequency from about 150KHz to 23MHz, and it exhibits < -44dB total harmonic distortion at 150KHz ~ 23MHz while the DC maximum power consumes 18mW.
Keywords :
CMOS analogue integrated circuits; filters; operational amplifiers; CMOS process; cross-coupled pairs; flipped voltage followers; high-frequency linear operational transconductance amplifier; power 18 mW; reconfigurable highly linear active-Gm-C filter; size 0.18 mum; wideband reconfigurable CMOS Gm-C filter; wireless applications; Bandwidth; Broadband amplifiers; Frequency; Nonlinear filters; Operational amplifiers; Power harmonic filters; Prototypes; Transconductance; Voltage; Wideband;
Conference_Titel :
Electronics, Circuits, and Systems, 2009. ICECS 2009. 16th IEEE International Conference on
Conference_Location :
Yasmine Hammamet
Print_ISBN :
978-1-4244-5090-9
Electronic_ISBN :
978-1-4244-5091-6
DOI :
10.1109/ICECS.2009.5410969
