Doug Mercer

Rich Ghiorse

Joseph Creech

Ken Marasco

Reem Malik

Sandro Herrera

Colm Slattery

Mick McCarthy

Dan Sheingold, Editor

Scott Wayne, Editor

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Published by Analog Devices on Smashwords

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Analog Dialogue

Volume 45, Number 4

Copyright © 2011 by Analog Devices

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Smashwords Edition License Notes

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Table of Contents

Front End Turns PC Sound Card into High-Speed Sampling Oscilloscope

Various software packages enable PC sound cards to provide oscilloscope-like displays, but the low-sample-rate, high-resolution ADCs and ac-coupled front ends have limited bandwidths. For repetitive waveforms, a sampling front-end stretches the time axis, allowing the PC to be used as a high-speed sampling scope. This article describes a front end and probe that provide an appropriate adaptation.

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