Title :
A wide tuning range Active-RC filter for multi-mode applications
Author :
Wang, Weiwei ; Yan, Na ; Min, Hao
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
This paper presents a 6th-order Active-RC filter for multi-mode applications. The filter exploits Butterworth structure with digitally-controlled resistor and capacitor arrays, which is flexible for bandwidth tuning. The chip is fabricated in SMIC 0.13μm CMOS process, occupies an area of 0.83mm2. The measurement results indicate the filter provides a wide tuning range from 400kHz to 20MHz and achieves an IIP3 of +20dBm with 1.2V power supply and the power consumption is 8.16mW.
Keywords :
Butterworth filters; CMOS integrated circuits; RC circuits; active filters; capacitors; circuit tuning; resistors; Butterworth structure; SMIC CMOS process; bandwidth tuning; capacitor array; digitally-controlled resistor; frequency 400 kHz to 20 MHz; multimode application; power 8.16 mW; size 0.13 mum; voltage 1.2 V; wide tuning range active-RC filter; Capacitors; Cutoff frequency; Low pass filters; Power demand; Resistors; Tuning;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667731
