An integrated analog/digital random noise source

1 June 1997

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems I: Regular Papers

Vol. 44 (6), 521-528
https://doi.org/10.1109/81.586025

Abstract

An integrated noise source (INS) has been fabricated in a standard 1.2 /spl mu/m digital CMOS technology. Wideband white noise is generated from the amplified thermal noise of large resistors, which in turn is coupled into a comparator to generate a random digital bit stream. The INS generates 100 mV rms of analog output noise over a bandwidth of 3.2 MHz and operates from a single 5 V power supply with a quiescent current of 7.4 mA. The circuit has an area of 2.92 mm/sup 2/. Potential applications of the INS include data encryption, mathematical simulation, and circuit test and measurement.

Keywords

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