Title :
A bootstrapping technique to improve the linearity of CMOS passive mixers
Author :
Tillman, F. ; Sjoland, H.
Author_Institution :
Dept. Of Electrosci., Lund Univ., Sweden
Abstract :
A bootstrapping technique for passive mixers has been implemented in a fully integrated 1V CMOS front-end. The idea is to improve the linearity of the mixer by making the switching instants independent of the IF output signal. The technique reduces the intermodulation distortion without degradation of the conversion gain or the noise figure. The measured IIP/sub 3/ of the front-end was increased by 5 dB resulting in an increased dynamic range, which is critical for low supply voltages.
Keywords :
CMOS integrated circuits; bootstrap circuits; intermodulation distortion; mixers (circuits); passive networks; semiconductor device noise; 1 V; 5 dB; CMOS; CMOS passive mixers; IF output signal; bootstrapping; conversion gain; intermodulation distortion; linearity; low supply voltages; noise figure; switching instants; CMOS technology; Circuit topology; Degradation; Dynamic voltage scaling; Integrated circuit technology; Linearity; Low voltage; Noise figure; Packaging; Switches;
Conference_Titel :
VLSI Circuits, 2003. Digest of Technical Papers. 2003 Symposium on
Conference_Location :
Kyoto, Japan
Print_ISBN :
4-89114-034-8
DOI :
10.1109/VLSIC.2003.1221208
