from the Lab
and Video Products
Feature Articles: Products, Applications, Technology, Design Ideas, Tutorials, and Measurement Techniques
A Note from the Editor
Wins: 50% Smaller PCB Footprint at ⅓ the Cost
Zero Intermediate Frequency (ZIF) transceiver architecture is a key enabler and optimal solution for high-performance
software-defined radio signal chain integration. But to achieve this, certain limitations in the ZIF approach had to be overcome in order
to meet the performance, agility, and flexibility demanded by today’s high-end wideband wireless applications. Those limitations have
been solved through innovation and the author walks through the architecture and performance data of a high-performance ZIF transceiver
Provide Breakthrough SWaP Solutions for Aerospace and Defense
Doing more with less is a mandate in military system design these days and reductions in SWaP (Size, Weight, and Power)
is a key system design requirement. The new generation of Integrated RF agile wideband transceivers enable SWaP reduction in many military
applications. In this article’s authors words, “The next generation aerospace and defense platforms are demanding a new approach to RF
design, one where several square inches of an existing platform are integrated into a single device. Where the boundary between software
and hardware is blurred.” This article explores an integrated programmable RF TRx signal chain solution that addresses SWaP reduction.
Common Sense for Current Sensing
I need to measure a current but I don’t know which amplifier to use. Where do I start?
PGAs in ADCs: Redefining Performance
For many applications, capacitive programmable gain amplifiers (PGAs) offer better performance than traditional
resistive PGAs. For instance, they provide higher common-mode voltage rejection of analog input signals which is important in sensor
applications. This article describes how a chopped capacitive amplifier operates and highlights the benefits of this architecture
when a small signal from the sensor needs to be amplified close to the rails. Application examples analyzed include temperature
measurement (RTDs or thermocouples) and Wheatstone bridges.
Crossing a New Frontier of Multiband Receivers with Gigasample ADCs—Part One
Backhaul service providers who must respond to market demands for faster data rates and cheaper services, are
confronted with a dichotomous situation: faster data rates mean more bandwidth, which requires faster processing and increased system costs.
The solution lies in RF sampling ADCs which integrate custom digital processing blocks to lower data rates, enabling the use of
lower-cost FPGAs as processors. This article will discuss a use case for a multiband radio receiver design for TDD LTE bands 34
and 39, based on the AD9680 RF ADC.
Choosing a Precision Op Amp? Trust Goldilocks
I’m selecting an op amp for my precision signal path. Isn’t faster always better?
and Power Control
Control and Industrial Automation
Analog Dialogue is the technical
magazine of Analog Devices. It discusses products, applications,
technology, and techniques for analog, digital and mixed-signal