Author

Wurcer Scott

Wurcer Scott

Scott is a native of Milwaukee, and started his career in earnest when he joined MIT, working in X-Ray astronomy in the Center for Space Research.

 

After graduation he joined Analog Devices, Inc, initially as a product test engineer, later as an IC circuit designer. Scott's first major product design was the AD524 instrumentation amplifier, the first IC inamp to use current feedback; it also used JFET input protection, and its distortion was below 10ppm. It was reported on at the IEEE Solid-State Circuits Conference and quickly became an industry standard.

 

Other important and innovative op amp designs Scott has to his name, some involving patents, include: the AD712 BiFET (FETs trimmed for ac & dc performance to be independent of temperature and manufacturing variations); the low-noise AD797, fabricated on a complementary bipolar (CB) process and using a patented distortion-nulling process for low audio distortion; and the 800-MHz, 5-mA AD8001 (XFCB process).

His recreational interests include cooking, golf, Chinese painting and music. Scott has written application notes and articles, sometimes in collaboration with Walt Jung, featuring modern integrated circuit op-amps and instrumentation amplifiers in audio applications. His main interests are in low noise and high resolution instrumentation.

 

Written articles
DIY Low-noise Microphone Preamplifiers, Part II

Part I of this article appeared in Linear Audio Vol 1 in Spring 2011 and readers have been asking for Part II ever since. This is a very comprehensive treatment of all factors involved in...

Record replay RIAA correction in the digital domain

Scott Wurcer noticed that, when playing records, the signal often gets digitized on its ultimate way to the speakers, through a streaming audio device or a digital multiway crossover or even only...

Low-noise Microphone Preamplifiers

Scott Wurcer provides an in-dept analysis of what it takes to build a state of the art mic preamp. An extensive discussion on the noise characteristics of mic capsules is followed by selection...