A low-power decibel-linear CMOS Automatic Gain Control

Author

Xin Lv ; Junyu Shi ; Jingjing Zou ; Si-Heng Zhu ; Ya-Fen Ge ; Yong Liu ; Li-Ming Si

Author_Institution

Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing, China

fYear

2013

fDate

25-28 Aug. 2013

Firstpage

270

Lastpage

273

Abstract

This paper presents an all CMOS decibel-linear Automatic Gain Control (AGC). This AGC achieves large dynamic range with low power consumption. By applying digital switches to change exponential approximation function, four dynamic ranges (62, 50, 33, 26 dB) are realized. This AGC is implemented in TSMC 0.18-μm CMOS RF process. Measurement results show that this AGC achieves 60 dB linear range with linearity error less than 1 dB. The whole circuit consumes 3.6 mA from 2-V supply.

Keywords

CMOS analogue integrated circuits; automatic gain control; low-power electronics; AGC; TSMC CMOS RF process; automatic gain control; current 3.6 mA; digital switches; dynamic range; exponential approximation function; low power consumption; low-power decibel-linear CMOS; size 0.18 mum; voltage 2 V; Automatic generation control; CMOS integrated circuits; Dynamic range; Gain; Gain control; Gain measurement; Linearity; Automatic gain control (AGC); decibel linear; low-power; variable gain control (VGA);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2013 IEEE International Conference on

Conference_Location

Qingdao

Type

conf

DOI

10.1109/ICMTCE.2013.6812432

Filename

6812432