A low power LNA for bluetooth low energy application with consideration of process and mismatch

Author

Lei Liao ; Kaehlert, Stefan ; Yifan Wang ; Atac, Aytac ; Ye Zhang ; Schleyer, Martin ; Wunderlich, Ralf ; Heinen, Stefan

Author_Institution

Dept. of Integrated Analog Circuits, RWTH Aachen Univ., Aachen, Germany

fYear

2012

fDate

4-7 Dec. 2012

Firstpage

908

Lastpage

910

Abstract

A low Power LNA for application in bluetooth low energy (BLE) receiver front-end in UMC 130-nm CMOS is presented. A capacitor cross-coupled common-gate LNA has been implemented. Due to the very low current consumption (1 mA @ 1.2 V) of the designed LNA, the standard deviation of the noise figure from the LNA circuit is dominated by process and mismatch. In this work, the reduction of standard deviation of the noise figure is achieved. The designed LNA achieves a noise figure of 3.2 dB and a voltage gain above 20 dB at all the bluetooth specified frequency ranges (2.4-2.483 GHz). The noise figure measurement with the whole receiver chain is done. The LNA fulfills the bluetooth system specifications and the measured power consumption is below 1.2 mW.

Keywords

Bluetooth; CMOS integrated circuits; low noise amplifiers; BLE receiver; Bluetooth low energy application; LNA circuit; UMC CMOS; capacitor cross-coupled common-gate LNA; current 1 mA; frequency 2.4 GHz to 2.483 GHz; gain 20 dB; low power LNA; noise figure 3.2 dB; noise figure measurement; size 130 nm; voltage 1.2 V; Bluetooth; Gain; Noise; Noise measurement; Power demand; Receivers; Standards;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2012 Asia-Pacific

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-1330-9

Electronic_ISBN

978-1-4577-1331-6

Type

conf

DOI

10.1109/APMC.2012.6421775

Filename

6421775