Steve Hendrix is a registered Professional Engineer and independent consultant specializing in hardware and firmware design for medical and industrial data acquisition and control. Before making Hx Engineering a full-time pursuit some nine years ago, he acquired industry experience in a variety of areas, including commercial PC interfaces, automated control systems for life-support systems for the then-proposed Space Station Freedom, and preventive/predictive maintenance tools, including vibration analysis. Prior to that experience, he was a military flight instructor in the USAF, having graduated from the USAF Academy with a BSEE in Computer Science and Mathematics. He lives in northeastern Ohio with his wife Kathy and their three children, and continues an interest in astronomy in between volunteer activities such as Scouting. If you would like to contact Steve directly with questions or comments, click here.

Analog to Digital Conversion Techniques At the heart of most portable instruments lies an analog-to-digital converter (ADC) which converts some real-world quantity, often voltage, into a digital form which can be read by the processor and manipulated as needed to support the application. This conversion seems straightforward enough, but there are a wide variety of techniques in use to perform such a conversion, and each has its own strengths and weaknesses. As a designer, you need to be aware of the various techniques and how they can impact the rest of the design.   Click here to read the complete article.

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Portable Instrumentation Archive

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