Paper Info
Title
A 1.25mW 3rd-order Active-Gm-RC 250MHz-bandwidth analog filter based on power-stability optimization
Abstract
In this paper a 250MHz-bandwidth continuous-time low-pass filter is presented. The filter is based on Active-Gm-RC biquadratic cell. With respect to Active-Gm-RC, this filter exploits an additional input RC-net, increasing the low-pass filtering order up to 3, while maintaining single-Opamp topology. In particular, Opamp frequency response has been optimized, exploiting a proper algorithm, that allows to minimize power and maximize loop gain phase margin. A prototype of the filter has been designed in CMOS 0.13μm technology, complying with ultra-wide-band receivers specifications. The filter consumes 1.2mW, while processing a 0.7Vzero-peak differential signal, and maintaining noise power spectral density under 237μVrms. The overall Signal-to-Noise-Ratio is 65dB.
Year
DOI
Venue
2012
10.1109/ICECS.2012.6463751
Electronics, Circuits and Systems
Keywords
DocType
ISBN
CMOS analogue integrated circuits,biquadratic filters,continuous time filters,low-pass filters,operational amplifiers,optimisation,stability,3rd-order Active-Gm-RC analog filter,CMOS technology,RC-net,active-Gm-RC biquadratic cell,bandwidth 250 MHz,continuous-time low-pass filter,differential signal,noise power spectral density,opamp frequency response,power 1.25 mW,power-stability optimization,signal-to-noise-ratio,single-Opamp topology,size 0.13 mum,ultra-wide-band receiver specifications,voltage 237 muV,Active-Gm-RC,Analog filter,CMOS 0.13µm,Low-Power,Low-Voltage,Wireless,continuous-time
Conference
978-1-4673-1259-2
Citations 
PageRank 
References 
0
0.34
0
Authors
6
Name
Order
Citations
PageRank
Marcello De Matteis14217.29
Stefano D'Amico212927.42
Andrea Costantini300.34
Alessandro Pezzotta4167.42
Andrea Baschirotto516848.21
De Matteis, M.65416.15