The analog floating point technique

Author

Blumenkrantz, E.M.

Author_Institution

Centre Suisse d´Electronique et de Microtechnique SA, Neuchatel, Switzerland

fYear

1995

fDate

9-11 Oct. 1995

Firstpage

72

Lastpage

73

Abstract

A technique for avoiding signal distortion when applying Compression/Range Switching to circuits with functional State Variables is presented. It is applicable to analog circuits/systems with memory, like Switched Capacitor, Switched Current and Continuous Time filters, /spl Sigma/-/spl Delta/ Data Converters, Chopper and Lock-in Amplifiers. Distortion free operation is obtained by properly updating the circuit´s State Variables. Power consumption is significantly reduced due to the elimination of unnecessary SNR.

Keywords

analogue processing circuits; electric distortion; /spl Sigma/-/spl Delta/ data converters; SNR; analog circuits; analog floating point technique; chopper amplifiers; compression switching; continuous time filters; lock-in amplifiers; memory; power consumption; range switching; signal distortion; state variables; switched capacitor filters; switched current filters; Acoustic noise; Analog circuits; Application specific processors; Auditory system; Distortion; Energy consumption; Filters; Signal processing; Signal to noise ratio; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Low Power Electronics, 1995., IEEE Symposium on

Conference_Location

San Jose, CA, USA

Print_ISBN

0-7803-3036-6

Type

conf

DOI

10.1109/LPE.1995.482469

Filename

482469