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Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.69 [2010] >
JSIR Vol.69(10) [October 2010] >
| Title: | A low-power Gm-C low pass filter for mobile applications |
| Authors: | Lakshmi, M Santhana
Vanathi, P T |
| Keywords: | Common mode feedback
Current multiplier
Low pass filter
Transconductor |
| Issue Date: | Oct-2010 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This study presents a high
performance complementary metal oxide semiconductor (CMOS) transconductor used
in a
multimode channel selection
filter for mobile applications. The design employs a voltage to current (V-I)
converter and a two
quadrant current multiplier.
Cascoded flipped voltage follower (CASFVF) is used as an input stage in class
AB pseudo differential
pair to perform V-I
conversion. Current multipliers are used to linearise output from V-I converter
and provide additional tuning
ability to transconductor. A
second - order Butterworth low pass filter (LPF) is designed with proposed
transconductor and
simulated using TSMC 0.35- m
CMOS technology in H-spice in synopsis tool. LPF consumes very low power (0.2
mW) and
provides a wide tuning range (200 KHz - 3.1 MHz). |
| Page(s): | 750-755 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.69(10) [October 2010]
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