Title :
A 3.5mW 900MHz Down-converter with Multiband Feedback and Device Transconductance Reuse
Author :
Han, Junghwan ; Gharpurey, Ranjit
Author_Institution :
Univ. of Texas at Austin, Austin
Abstract :
A down-converter is presented wherein the IF-output of a mixer is applied to its input transconductor to enhance gain without increasing bias current. A 900MHz receiver with power dissipation of 3.5mW is demonstrated in a 0.13-mum CMOS process. The conversion gain is variable from 10-50 dB, the NF is 9.8 dB at peak gain and the OIP3 is 8 dBV-p. The receiver has a third-order low-pass response at IF. The area requirement is 0.1 mm2.
Keywords :
CMOS integrated circuits; UHF frequency convertors; UHF integrated circuits; radio receivers; CMOS process; complementary metal-oxide-semiconductor; conversion gain; device transconductance reuse; down converter; frequency 900 MHz; gain 10 dB to 50 dB; input transconductor; intermediate-frequency; mixer; multiband feedback; power 3.5 mW; receiver; size 0.13 mum; Baseband; CMOS technology; Feedback; Gain; Power dissipation; RF signals; Radio frequency; Receivers; Transconductance; Transconductors;
Conference_Titel :
Custom Integrated Circuits Conference, 2007. CICC '07. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-1623-3
Electronic_ISBN :
978-1-4244-1623-3
DOI :
10.1109/CICC.2007.4405786
