A 150 MHz 13b 12.5 mW IF digitizer

Author

Sen, Subhajit ; Leung, Bosco

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

fYear

1998

fDate

11-14 May 1998

Firstpage

233

Lastpage

236

Abstract

A sub-sampling IF digitizer that uses a passive sampling mixer to improve distortion and a BiCMOS comparator to improve the SNR of a passive loop-filter based ΣΔ converter is described. Volterra series analysis allows accurate prediction of distortion in the sampling mixer. A bipolar emitter-coupled pair based preamplifier in the comparator helps to relax overdrive recovery requirements of the regenerative latch and improve the speed of the comparator

Keywords

BiCMOS integrated circuits; Volterra series; comparators (circuits); electric distortion; integrated circuit noise; mixers (circuits); network analysis; sigma-delta modulation; signal sampling; 12.5 mW; 150 MHz; BiCMOS comparator; SNR improvement; Volterra series analysis; bipolar emitter-coupled pair based preamplifier; distortion improvement; overdrive recovery requirements; passive loop-filter based ΣΔ converter; passive sampling mixer; regenerative latch; sigma-delta converter; sub-sampling IF digitizer; Circuits; Complexity theory; Convolution; Frequency conversion; Mixers; Nonlinear distortion; Power engineering and energy; Power engineering computing; Sampling methods; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998

Conference_Location

Santa Clara, CA

Print_ISBN

0-7803-4292-5

Type

conf

DOI

10.1109/CICC.1998.694970

Filename

694970