Design of Low Power and High Linearity Gm-C Low Pass Filters

DOI

10.2991/cimns-16.2016.7How to use a DOI?

Keywords

component; OTA; Gm-C; low-pass filter; biquad

Abstract

This paper presents two kinds fully differential operational transconductance amplifier (OTA) circuit, one is a flipped voltage follower circuit structure (OTA1), the other is a source follow circuit structure (OTA2). The two OTAs' transconductance can all be accurately set by the control voltage. Two Gm-C Low-Pass Filters are designed respectively based on the two OTAs, the filters are the 4th order Butterworth low-pass filter by 2 Biquads,and their cut-off frequency are 100kHz. Simulation is designed in Cadence using SMIC 0.13 m CMOS technology, the supply voltage is 1.2V, the bias current is set to 7.2 A and the common mode voltage is set to 0.6V. The results show that the transconductance values have good linearity in specified range of the input voltage, and the Gm-C filters can all meet the design requirements.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiushan Wu
AU  - Yanzhi Wang
AU  - Qingying Chen
AU  - Xingzhou Jiang
AU  - Renyuan Tong
AU  - Jianqiang Han
AU  - Siguang An
PY  - 2016/09
DA  - 2016/09
TI  - Design of Low Power and High Linearity Gm-C Low Pass Filters
BT  - Proceedings of the 2016 International Conference on Communications, Information Management and Network Security
PB  - Atlantis Press
SP  - 25
EP  - 28
SN  - 2352-538X
UR  - https://doi.org/10.2991/cimns-16.2016.7
DO  - 10.2991/cimns-16.2016.7
ID  - Wu2016/09
ER  -