Title :
Design of an Active-RC Bandpass Filter for a Subsampling RF Delta Modulator
Author :
Naderi, All ; Sawan, Mohamad ; Savaria, Yvon
Author_Institution :
Polystim Neurotechnologies Lab., Ecole Polytech. de Montreal, Que.
Abstract :
This paper describes a new fully-differential second-order bandpass active-RC filter which is dedicated to reconfigurable receivers based on delta modulators. The filter is tunable in terms of center frequency and Q-factor. It employs an amplifier with two-path feedforward compensation that achieves a unity-gain frequency of 1 GHz with DC gain of 58 dB. 1-dB compression point of the filter is -9.6 dBm. The total power consumption of a proposed circuit implementation with a 0.13 mum CMOS technology is less than 4.6 mW when power supply is 1.2 V
Keywords :
Q-factor; active filters; band-pass filters; delta modulation; feedforward amplifiers; signal sampling; 0.13 micron; 1 GHz; 1.2 V; 4.6 mW; CMOS technology; Q-factor; RF delta modulator; amplifier; fully-differential second-order bandpass active-RC filter; power consumption; reconfigurable receivers; two-path feedforward compensation; unity-gain frequency; Band pass filters; CMOS technology; Delta modulation; Energy consumption; Gain; Power supplies; Q factor; Radio frequency; Radiofrequency amplifiers; Tunable circuits and devices; Detla modulators; amplifier compensation; bandpass Active-RC filter; reconfigurable receivers;
Conference_Titel :
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0038-4
Electronic_ISBN :
1-4244-0038-4
DOI :
10.1109/CCECE.2006.277566
