A 2.5mW 900MHz Receiver Employing Multiband Feedback with Bias Current Reuse

Author

Han, Junghwan ; Gharpurey, Ranjit

Author_Institution

Univ. of Texas at Austin, Austin

fYear

2007

fDate

3-5 June 2007

Firstpage

329

Lastpage

332

Abstract

A down-conversion receiver that employs a merged IF-amplifier and mixer is described. Down-converted signal at IF is fed back into the mixer transconductor for further amplification. The receiver operates at a nominal supply voltage of 1.2 V with a current requirement of 2.1 mA and provides a peak conversion-gain of 55 dB. The SSB noise figure is 13 dB at an IF of 1 MHz and 9.8 dB at an IF of 4 MHz. The receiver is implemented in a 0.13-mum CMOS process, with a core area of less than 0.1 mm².

Keywords

CMOS integrated circuits; UHF amplifiers; UHF mixers; intermediate-frequency amplifiers; radio receivers; CMOS process; IF-amplifier; SSB noise figure; bias current reuse; current 2.1 mA; down-conversion receiver; down-converted signal; frequency 900 MHz; gain 55 dB; mixer transconductor; multiband feedback; noise figure 13 dB; power 2.5 mW; size 0.13 mum; voltage 1.2 V; Baseband; Capacitors; Circuits; Dynamic range; Feedback; Filters; Impedance; Radio frequency; Resistors; Transconductance; Current reuse; dual-band utilization; feedback; low power; merged mixer and IF amplifier; receiver down-converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE

Conference_Location

Honolulu, HI

ISSN

1529-2517

Print_ISBN

1-4244-0530-0

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2007.380894

Filename

4266442