A 624μW Variable Gain Amplifier with 45dB peak Gain using Current Controlled Degeneration

被引：0
|
作者：
Gladson, S. Chrisben [1 ]
Thenmozhi, V [1 ]
Bhaskar, M. [1 ]
机构：
[1] Natl Inst Technol, Dept Elect & Commun Engn, Tiruchirappalli, India
来源：
2020 5TH INTERNATIONAL CONFERENCE ON DEVICES, CIRCUITS AND SYSTEMS (ICDCS' 20) | 2020年
关键词：
VGA; CMOS; Current-Reuse; Low-power;
D O I：
10.1109/ICDCS48716.2020.243542
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a current controlled variable gain amplifier (VGA) with a two-stage current-reuse gain cell and a tail current source for controlling the current. VGA is aiming to offer high voltage gain, low Noise Figure (NF) while operating with low-power consumption for high-performance wireless applications. The low-voltage low-power VGA is designed and implemented in UMC 180nm CMOS technology using Cadence virtuoso design tool. The proposed VGA can provide a maximum gain of 45.1dB while achieving a maximum IIP3 of 4.643dBm and minimum NF of 4.976dB. Power consumption of the VGA at maximum gain is 624.4 mu W from 1V supply.
引用
收藏
页码：30 / 34
页数：5
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