Title :
The analog floating point technique
Author :
Blumenkrantz, E.M.
Author_Institution :
Centre Suisse d´Electronique et de Microtechnique SA, Neuchatel, Switzerland
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;
Conference_Titel :
Low Power Electronics, 1995., IEEE Symposium on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
0-7803-3036-6
DOI :
10.1109/LPE.1995.482469
