When Second Sources aren't James Bryant 2/9/2016 7 comments We have been manufacturing a system using an Analog Devices' component for many years. Recently our purchasing department bought a consignment of cheaper replacement devices from another company and the whole batch of systems using them failed to work. Every specification on their data sheet is the same as ADI's, and when we test them they are well within those specifications. What is happening?
Components and Methods for Current Measurement Bryan Yarborough 2/1/2016 3 comments Current sensing is used to perform two essential circuit functions. First, it measures “how much” current is flowing in a circuit; information that may be used for power management in a DC/DC power supply to determine essential peripheral loads to conserve power. The second function is to determine when there is “too much” current, or a fault condition.
The Drone Dilemma, Part 2: Legal Scott Deuty 1/26/2016 2 comments There is no doubt that legal subjects intermix with privacy and air space. So the legal subject matter that is referred to herein will focus on drone registration and the development of laws and regulation. Other legal matters such as privacy and air space will be covered separately.
An Isolated Potentiometer, Part 1 Dennis Feucht 1/22/2016 5 comments The following isolated anapot, or isopot, design is intended as a design “template” for general application wherever a manually-actuated pot is to be replaced and actuated by an analog voltage.
Build a high-voltage linear regulator Steve Taranovich 1/12/2016 12 comments Generating a regulated voltage from input rails exceeding 100 V is challenging. A limited selection of integrated solutions complicates the problem. Creating a discrete voltage regulator enables a low-cost solution, but the design process is involved and requires a deeper understanding of key engineering tradeoffs, with an emphasis on device thermal properties.
Whatever Became of RFID? Analog Angle 12/14/2015 10 comments A large part of our industry's momentum is fueled by predictions about the next big thing, but these often fail the harsher reality test
Low Power Switched Cap Bandgap Scott McLeod 12/13/2015 1 comment Whether designing a bandgap reference for medical implants, monolithic battery charging or just trying to minimize operating power, a switched capacitor bandgap implementation fits the bill nicely. With a switched cap circuit, the creation of a bandgap voltage is based upon charge transfer as opposed to constantly biased circuitry and thus lends itself well to low power operation.
Missing Half the Power Ian Beavers 12/9/2015 Post a comment When using an ADC’s internal digital down conversion (DDC) processing for decimation, my single tone real input signal is losing 6dB of power. What is happening?
What’s new in Remote Control Technology? Sean Donnelly 12/6/2015 Post a comment Infrared, IR, Communications technology is used to link consumer equipment such as a remote control with a television since the late 1970’s. Over the years manufacturers have developed a multitude of digital communication protocols most commonly based on Amplitude Shift Keying, ASK, modulation. The introduction of new protocols differentiated communication schemes, im-proved robustness, and optimized data transmission capability
EHS – A Disease For The Wireless Age? Paul Pickering 12/1/2015 3 comments Is electromagnetic hypersensitivity (EHS), characterized by sensitivity to non-ionizing electromagnetic fields at levels well below those permitted by international radiation standards, actually just the "nocebo" disease du jour or does it have a basis in science?
Analog, US to Lead Chip Market Growth Peter Clarke 12/1/2015 Post a comment The global semiconductor will be flat in 2015 at $336 billion, up 0.2 percent from 2014, according to the European Semiconductor Industry Association referring to figures from the World Semiconductor Trade Statistics (WSTS) organization.
Startup Wants to be the ARM of Analog Julien Happich 11/23/2015 2 comments Founded last summer after two years of preliminary research and with several patents pending, Californian startup Circuit Seed embarks father and daughter co-founders Bob and Susan Schober onto a licensing quest for their sub-micron CMOS-based analog circuits.
All the comforts of home: Espresso in space Steve Taranovich 11/22/2015 5 comments Samantha Cristoforetti was the first Italian woman to go to space, but more importantly to some astronauts, on May 3 of this year was also the first astronaut in history to drink Lavazza Italian espresso while in orbit on the International Space Station (ISS).
We have been manufacturing a system using an Analog Devices' component for many years. Recently our purchasing department bought a consignment of cheaper replacement devices from another company and the whole batch of systems using them failed to work. Every specification on their data sheet is the same as ADI's, and when we test them they are well within those specifications. What is happening?