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In This Issue a Forum for the Exchange of Circuits, Systems, and Software for Real-world Signal Processing Editors' Notes Avoid Common Problems When Designing Amplifier Circuits
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sheingold, Dan Kitchin, Charles |
| Abstract | In ThIs Issue Modern op amps and in-amps provide great benefits to the designer, and a great many clever, useful, and tempting circuit applications have been published. But all too often, in one's haste to assemble a circuit, some very basic issues are overlooked, leading to the circuit not functioning as expected—or perhaps at all. The article on page 3, destined to be a classic, will discuss a few of the most common application problems and suggest practical solutions. Medical ultrasound systems, among the more complex signal processing devices in use today, are used for real-time detection of health problems and general diagnostic procedures. Slower than radar and faster than sonar, ultrasound systems have become increasingly portable, evolving from cart-based systems into palm-sized devices. The article on page 10 discusses some of the necessary ingredients of compactness. As electret microphones become smaller, their element capacitance decreases. JFET preamps no longer suffice, as their relatively large input capacitance attenuates the signal from the microphone. Much can be gained by replacing JFET amplifiers with CMOS analog and digital circuitry, including easier gain setting, multiple functional modes, direct digital outputs, enhanced sound quality, and higher noise immunity (see page 13). 40 Th AnnIVeRsARY CD The centerfold of this issue depicts the cover of 40 Years of Analog Dialogue, our 40 th anniversary CD. Sure to become a valuable collector's item, the CD contains a complete set of PDF reproductions of (every page of) every issue published in print during its first 40 years, the " Ask The Applications Engineer " series, and Barrie Gilbert's " The Wit and Wisdom of Dr. Leif " can be accessed directly. If you're on our North American print distribution list, you should have received a copy with this magazine. If you're on our European print distribution list, you should be receiving a copy soon. For all other readers in North America who want a copy, please contact your local sales office, or send your name and mailing address, along with a check or money order A ReADeR ResPOnDs In the Analog Dialogue Volume 41, Number 2 Editors' Notes, you wrote: " The second problem is that the GPS loses its signal when I travel through Boston's Big Dig tunnels, making it unable to maintain its bearings or to provide instructions for lane splits and exits. Too bad it doesn't include an ADI accelerometer, whose inertial navigation capabilities … |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.analog.com/library/analogdialogue/cd/vol41n3.pdf |
| Alternate Webpage(s) | http://www.analog.com/media/en/analog-dialogue/volume-41/number-3/articles/volume41-number3.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
