Title :
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
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);
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2013 IEEE International Conference on
Conference_Location :
Qingdao
DOI :
10.1109/ICMTCE.2013.6812432
