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A 90nm CMOS variable-gain amplifier and RSSI design for wide-band wireless network application
Conference proceeding

A 90nm CMOS variable-gain amplifier and RSSI design for wide-band wireless network application

T. Hui Teo, M. Annamalai Arasu, Wooi Gan Yeoh and Masaaki Itoh
ESSCIRC 2006: PROCEEDINGS OF THE 32ND EUROPEAN SOLID-STATE CIRCUITS CONFERENCE, pp.86-89
Proceedings of the European Solid-State Circuits Conference
09/2006
DOI: https://doi.org/10.1109/ESSCIR.2006.307537

Abstract

Computer Science Computer Science, Hardware & Architecture Engineering Engineering, Electrical & Electronic Science & Technology Technology
A VGA (variable-gain amplifier) integrated with RSSI (received signal strength indicator) function is designed and implemented in a 90nm CMOS technology. Employing closed-loop amplifier, the VGA chain achieves 500MHz bandwidth with 45dB variable gain. The IIP3 (third order input referred intercept point) of the VGA is measured to be as high as 19dBm, meanwhile the NF (noise figure) is 16dB. The RSSI linear range is approximately 65dB for +/- 0.3dB linearity error. The VGA chain consumes 13mA from 2.5V single supply voltage. The test chip active area is 650 mu m x 550 mu m.

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