Title
A high gain decibel-linear programmable gain amplifier of synthetic aperture radar receiver
Abstract
A high gain decibel (dB)-linear programmable gain amplifier (PGA) for a synthetic aperture radar (SAR) receiver is presented in this paper. The proposed PGA employs binary-weighted switching array as pseudo-exponential function to achieve large dynamic range. A current compensation circuit is proposed in fine gain step cell to decrease gain step error. This PGA has been implemented in 65 nm CMOS technology embed ding in a SAR receiver. Measurement results show that the proposed PGA exhibits a dB-linear gain range of 60 dB from 10.47 to 69.63 dB with a gain error of less than ±0.39 dB, a input 1-dB compression point (IP-1dB) of -67.8 to -18.4 dBm, a 3-dB bandwidth of 0.8 to 50 MHz at the maximum gain while consuming less than 5.4 mA from a 1.2 V supply.
Year
DOI
Venue
2016
10.1109/ISCAS.2016.7527232
2016 IEEE International Symposium on Circuits and Systems (ISCAS)
Keywords
Field
DocType
programmable gain amplifier,binary-weighted switch,current compensation,dB-linear
Open-loop gain,Fully differential amplifier,Synthetic aperture radar,Computer science,Decibel,Electronic engineering,CMOS,Bandwidth (signal processing),Array gain,Programmable-gain amplifier,Electrical engineering
Conference
ISSN
ISBN
Citations 
0271-4302
978-1-4799-5342-4
0
PageRank 
References 
Authors
0.34
6
7
Name
Order
Citations
PageRank
kai tang12911.22
bo chen23120.10
liheng lou375.35
Supeng Liu493.78
Yong Wang527592.19
Ying Zhang616325.25
Yuanjin Zheng732872.86