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Volume 48 — October 2014

Timely Information

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Circuits from the Lab

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Analog Dialogue--Since 1967

Feature Articles: Products, Applications, Technology, and Techniques

RF-to-Bits Solution Offers Precise Phase and Magnitude Data for Material Analysis

When analyzing materials in remote locations, placing probes within the material may not be viable. A high-frequency transceiver can provide a practical method for accurately quantifying the material’s volume fractions without the adverse effects of direct exposure to the material. Quadrature demodulators offer a novel, robust way to measure magnitude and phase shift.

Ask the Applications Engineer—41
LDO Operational Corners: Load and Headroom

Low-dropout linear regulators are frequently used to clean up noisy supply rails, but they also present tradeoffs, dissipating power and heat. To optimize system performance, LDOs are often operated with  low-headroom voltage or with loads that can be switched off to minimize power consumption. This two-part article discusses power-supply rejection, noise, and stability at these operational extremes.

...Recent Feature Articles: Products, Applications, Technology, and Techniques

Feature Articles: Design Ideas, Tutorials, Measurement Techniques

Two New Devices Help Reinvent the Signal Generator

In the past, the most difficult part of an arbitrary waveform generator was designing the output stage. Typical signal generators offer output ranges from 25 mV to 5 V. To drive a 50-Ω load, traditional designs used high-performance discrete devices, a large number of integrated devices in parallel, or an expensive ASIC. Now, amplifiers can drive these loads, reducing output stage complexity.

Configure Controller Area Network (CAN) Bit Timing to Optimize Performance

Controller area network offers robust communication between multiple network locations at a variety of data rates and distances. Featuring data link layer arbitration, synchronization, and error handling, CAN is used in industrial, instrumentation, and automotive applications. This article describes how to optimize settings for controller architecture, clocks, transceivers, and logic interface isolation.

...Recent Feature Articles: Design Ideas, Tutorials, and Measurement Techniques

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Analog Dialogue is the technical magazine of Analog Devices. It discusses products, applications, technology, and techniques for analog, digital and mixed-signal processing.

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