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The Floating Differential Source, Part 2: Specifications and Capabilities
Dennis Feucht  
7/6/2015   Post a comment
The Floating Differential Source (FDS), introduced and explained in the previous article segment, was designed for use in manufacturing test of analog circuits
The Floating Differential Source, Part 1
Dennis Feucht  
7/5/2015   Post a comment
A few years ago, I was working on the design of a data acquisition system (DAS) that would eventually need to be tested when manufactured. It had both high-side current sensing and floating diff-amp input channels. I could either recommend to the client that some expensive equipment be bought and configured for such testing or else design and build some prototypes of a Floating Differential Source (FDS) which would cost much less. I did the latter.
Differential-Amplifier Common-Mode Rejection Measurements, Part 2: Differential Amplifier CM Principles
Dennis Feucht  
7/5/2015   Post a comment
The Innovatia Floating Differential Source (FDS) was designed to measure diff-amp differential and CM gains for voltage or current-input diff-amps.
Overcoming the Necessary Evil of Writing Equations
Scott Deuty  
7/2/2015   2 comments
As an engineer, eventually you will have to insert an equation into your written work or presentation. This can be a struggle as equation editors are not always the friendliest. However, there is good news. The equation editor in Word has improved immensely (I am using version 2010 here). In this blog we look at how to insert an equation into a Word document. As a bonus, there is information on how to insert an equation into a web page with an html code generator website.
Yes, There is Such a Thing as First Harmonic Distortion
Kendall Castor-Perry  
6/30/2015   2 comments
Wait a minute. Let’s see if I understand this. (Here I’m channeling you, the puzzled reader, after you’ve grabbed me in the coffee break of a Filter Wizard lecture morning). The frequency of the nth harmonic of a sinusoid is n times that of the fundamental. The nth harmonic distortion is defined as the ratio of the amplitude of the nth harmonic to the amplitude of the fundamental. So the 1st harmonic distortion is… the ratio of the amplitude of the fundamental to the amplitude of the fundamental and that’s… unity. I. Do. Not. Understand.
Signal Chain Basics (Part 102): How to Implement an Active, DC-Coupled Broadband Balun with a Fully-Differential Amplifier
Signal Chain Basics  
6/30/2015   1 comment
Single-ended signals are very common, but increasingly signal paths are being converted to differential signals as part of the signal chain. The benefits of differential signaling are particularly appealing with low supply voltage systems and for driving analog-to-digital converters (ADCs).
Residential Demand Response: Water Heaters Get Connected
Paul Pickering  
6/30/2015   Post a comment
If you spend any time at all looking at alternative energy sources such as wind power and solar energy, you'll quickly discover one inconvenient truth: alternative energy production is both highly unpredictable and uncorrelated to energy demand.
“Oh How I Miss My Neighborhood Radio Shack Store”
Ronald Quan  
6/26/2015   2 comments
When Radio Shack announced that they were closing stores, unfortunately the one in Cupertino (De Anza Blvd.) was one of them.
S3 Group Integrated Radio IC for the Iridium and Iridium NEXT network
Steve Taranovich  
6/25/2015   5 comments
In 2009, Time Magazine called the Iridium global satellite program a tech failure. Motorola backed it for global satellite phone usage and filed for bankruptcy in 1999 after spending $5B to build and launch the infrastructure of satellites
Slideshow: imec Innovations in Wireless
Steve Taranovich  
6/23/2015   Post a comment
An imec slideshow of some of the pretty amazing technical accomplishments they bring to the electronics world via semiconductor process technology research and development
EMI Noise, Part 6: Novel Components for Suppressing EMI
Edgardo Menendez  
6/23/2015   Post a comment
To summarize this blog series upon its completion, electromagnetic interference (EMI) — which consists of a source, a path, and a victim — is a problem in electrical and electronic systems.
Will wood chips replace silicon chips?
Analog Angle  
6/23/2015   4 comments
Researchers have developed ICs which use a wood-based substrate rather than silicon or gallium arsenide; do their potential environmental benefits really matter?
EMI Noise, Part 5: EMI Suppression for Harsh Environments
Edgardo Menendez  
6/22/2015   Post a comment
Components utilized in harsh environment applications are typically subjected to excess mechanical stress, extremely hot or cold temperatures, the increased potential for electrostatic discharge, and/or high levels of radiation.
Converter Performance: Don’t be ENOB-headed About It!
Kendall Castor-Perry  
6/22/2015   1 comment
Without doubt, ENOB (Effective Number Of Bits) has become a “thing” in analog-to-digital converter discourse. But I don’t like it. And I’ll tell you why.
"A Dynamic Title Will Attract Your Targeted Audience"
Scott Deuty  
6/19/2015   2 comments
My written material must attract the reader therefore I am obligated to produce a dynamic title as well as an attractive opening statement.
Courses We’ve Taken: Useful, and Not
Analog Angle  
6/18/2015   4 comments
The value of engineering-related courses varies considerably, and often the ones on the periphery of the core subjects turn out to be the most useful—even if that isn’t apparent at first.
DAC BASICS, Part 5: Settling Down the Impact of the DAC
Bonnie Baker  
6/16/2015   Post a comment
The DAC’s settling time characteristics are consistent across both topologies of R-2R and string DAC
The Annual Embedded Development Survey for Planet Analog engineers
Steve Taranovich  
6/15/2015   2 comments
Given that many of Planet Analog’s readers are also involved in embedded development, we bring you the Embedded Market study so that you will be aware of embedded developer concerns in this ever-evolving market as well as recent changes in processor size, latest choices for operating systems and more.
NASA’s CubeSat Revolution is Coming to Deep Space
Steve Taranovich  
6/15/2015   Post a comment
In 2016 NASA will launch a mission to Mars atop the powerful Atlas V rocket. It will consist of a stationary lander called Seismic Investigations, Geodesy and Heat Transport (InSight).
Differential-Amplifier Common-Mode Rejection Measurements, Part 1: Differential Amplifier CM Principles
Dennis Feucht  
6/13/2015   4 comments
Differential amplifiers ideally amplify only the voltage difference across their input terminals
Mystery Spur Explained: Don’t Blame the DDC!
Steve Taranovich  
6/12/2015   1 comment
I recently witnessed some “strange” behavior while evaluating the output spectrum one of your high-speed ADCs that incorporates a digital down converter (DDC) function. Can you explain the existence of a mystery spur?
Is Your Smartphone Tainted? The Struggle Against Conflict Minerals
Paul Pickering  
6/11/2015   2 comments
If you've seen the movie “Blood Diamond", you'll be acquainted with some of the issues surrounding raw materials from conflict areas. There is ample evidence that in a conflict zone, access of both sides to valuable commodities can prolong conflicts and lead to further suffering among the civilian population, the Democratic Republic of the Congo being the best-known current example
Power Integrity: Noise
Steve Taranovich  
6/9/2015   Post a comment
Power Integrity ensures that the power supply delivers the proper voltage and current to the load(s) on a circuit board or in an IC.
Puzzling Opto Circuit
Steve Taranovich  
6/8/2015   14 comments
Ray Koosha, EE at SAFT America, Inc. and one of our Analog Aficionados community, sent us this circuit he found on the internet with the following comments
Accurate Circuit Verification of Integrated Power Switches
Neal Baltz  
6/6/2015   Post a comment
Following up with circuit verification is an important step to ensure design integrity through parasitic extraction and final simulations.
Signal Chain Basics (Part 101) ENOB Degradation Analysis Over Frequency Due to Jitter
Signal Chain Basics  
6/5/2015   3 comments
An analog-to-digital converter (ADC) sampling rate is determined by a clock signal that controls how often a voltage snapshot is taken for each conversion. However, clock signal timing isn’t perfect, having some type of jitter that becomes part of the overall ADC sampling rate jitter
IMS2015 Demo Details
Jonathan Harris  
6/3/2015   Post a comment
One of the questions that appeared on one of the IMS blog posts was about the details of the demonstration I had set up at the Analog Devices booth.
Application Notes are Helpful However Power Electronics Has Quirks that Require More In Depth Coverage
Scott Deuty  
6/2/2015   18 comments
In this blog I want to diverge from that topic. I am doing this because power electronics are physical circuits with quirks that result from the parasitics.
Optimal Step-Motor Control
Dennis Feucht  
6/1/2015   Post a comment
A previous article on step-motors berated open-loop stepping and the desperate methods used to avoid missed steps and acceleration limitations. This article outlines a path to simple step-motor control that avoids all these historic step-motor problems by using closed-loop phase control of the motor.
Is the Ultracapacitor a Replacement for Batteries?
Mike Everett  
5/29/2015   5 comments
Many engineers want to know if ultracapacitors will ultimately replace all batteries. The answer is, no. A typical follow-up question is, “Will the ultracapacitor replace some batteries?” and here the answer is, “yes.” While this may not seem like a revelation, the significance is in the manner ultracapacitors will replace some batteries.
When Developing New Silicon IP, Is First Pass Success Possible? Part 2
Brandt Braswell  
5/29/2015   Post a comment
In my last posting {doclink 563908} , I covered several questions for reaching first pass success. In this series, to reach first pass success there are some questions you can ask yourself as a team and get answers to before you move too far along the design path and need to make painful adjustments later down the road that cost money, area, and time. Having said this what else could you review as a design lead with your team or a manger developing a new product.
Do your duty when you duty-cycle
Kendall Castor-Perry  
5/29/2015   2 comments
They say that power corrupts. I don’t know about that; maybe I’ll let you know when I actually have some. But one thing I have found in electronic system design is that the search for low power corrupts. Corrupts signals, that is. And the scary part is that the people doing the searching often don’t realize it.
The Rise Of The Machines.... Ornithopters, Bugbots And Such
Paul Pickering  
5/29/2015   Post a comment
In the course of researching another piece, I came across a picture of a solder hand-launching an RQ-11 drone sorry, Unmanned Aerial Vehicle (UAV) in an article on military connectors. The text mentioned that researchers are working on exploiting an idea from Mother Nature- flapping wings - to develop a Micro AV (MAV) that looks more like a bird, thereby achieving a degree of camouflage.
Surely You Jest…
Ken Coffman  
5/27/2015   2 comments
What role did the jester play in history?
Thank you Albert Einstein for GPS
John Teel  
5/27/2015   8 comments
I’m a huge fan of Albert Einstein. As many physicists will agree his theories are the most pure expression of genius in the history of humankind.
Can Analog Circuits Inspire Budding Engineers?
Analog Angle  
5/26/2015   1 comment
It's a misconception to think that electrical engineering is mostly about doing software, but exposure to basic, analog circuits can change that misconception and become entry to the world of real signals.
Internet of Things Creating Opportunity Bubble for Analog
Blaine Bateman  
5/24/2015   4 comments
I've written before about the impact the Internet of Things (IoT) will have on electronics sales including the special role played by analog devices in IoT.
IMS2015 – Day 3: The Final and Shortest Day
Jonathan Harris  
5/22/2015   Post a comment
The last and final day of the show is usually has the most relaxed atmosphere and this year that proved to be the case once again. It is the shortest day of the show lasting from just 9:00 AM to 3:00 PM.
IMS2015 – Day 2: The Long Day
Jonathan Harris  
5/21/2015   2 comments
After having a pretty good first day of the show, I was looking forward to a good second day and it did not disappoint. The second day of the show on Wednesday is the longest day of the show as the exhibit hours go from 9:00 AM until 6:00 PM (day one is 9:00 AM to 5:00 PM and day three is 9:00 AM to 3:00 PM).
IMS2015 – Demo Setup and the First Day
Jonathan Harris  
5/21/2015   4 comments
The IMS2015 show is already off to a great start here in sunny Phoenix, Arizona and I hope that those of you attending are enjoying it so far.
IMS2015 – Pre-Show: The Preparation
Jonathan Harris  
5/18/2015   Post a comment
It sure doesn’t seem like it has already been a year since IMS2014! Well, technically, it hasn’t been since IMS2014 was in June last year. Once again this year IMS (International Microwave Symposium) is in a state known for its sunshine albeit this time sans the humidity. This year the show visits sunny Phoenix, Arizona.
Is the End in Sight for Analog FM Radio?
Analog Angle  
5/18/2015   13 comments
Digital audio broadcasting for commercial FM may replace conventional FM—should we worry or be pleased?
Effect of Channel Noise on RMS measurement accuracy: When Handwaving isn’t good enough
Kendall Castor-Perry  
5/18/2015   3 comments
A long time ago in a galaxy far, far away… I did a lot of work on the measurement of domestic electrical energy.
Technology Available for Train Safety Right Now Could Have Saved Lives
Steve Taranovich  
5/15/2015   9 comments
In light of the Amtrak incident that killed 8 people and injured over 200, I have to complain that the US authorities should have expedited a technological solution that will be mandated at the end of 2015 to greatly improve safety on the rails.
Electric Vehicle Connector Design: More Than Meets The Eye
Paul Pickering  
5/15/2015   Post a comment
Electric vehicles have been around a long time – over 100 years, in fact. Interest flared during the 1973 Arab Oil Embargo, which led to Congressional action in 1976 authorizing the Energy Department to support R&D into EV and hybrid vehicles.
Storage-Backed Inverters Doing the Same as the Smart Grid
Steve Taranovich  
5/12/2015   6 comments
One of the challenges with solar energy has always been storage. Installations produce a great deal of electricity to support a home or business, only to send the excess power back to the grid.
The STEM of all Evil, Part 2
Ken Coffman  
5/11/2015   7 comments
Let’s teach the students about the strengths and limitations of real components, then add mathematical formulas on top later and only in terms of what is known about real components and real designs.
Oscillator Amplitude Control, Part 2: Control Loop Dynamics
Dennis Feucht  
5/9/2015   1 comment
Oscillator amplitude control loop (ALC) design is complicated by the inherent nonlinearity of the loop
Slideshow of Tesla news clips from the 19th century
Steve Taranovich  
5/8/2015   Post a comment
Slideshow of amazing Nikola Tesla inventions
Using Deep N Wells in Analog Design
Keith Sabine  
5/7/2015   2 comments
On a conventional CMOS process, NMOS devices are formed in a P well or substrate connected to ground (or the most negative supply in the circuit). PMOS devices are formed in an N well connected to the most positive supply
Page 1 / 2   >   >>




latest blogs
The Floating Differential Source (FDS), introduced and explained in the previous article segment, was designed for use in manufacturing test of analog circuits
A few years ago, I was working on the design of a data acquisition system (DAS) that would eventually need to be tested when manufactured. It had both high-side current sensing and floating diff-amp input channels. I could either recommend to the client that some expensive equipment be bought and configured for such testing or else design and build some prototypes of a Floating Differential Source (FDS) which would cost much less. I did the latter.
The Innovatia Floating Differential Source (FDS) was designed to measure diff-amp differential and CM gains for voltage or current-input diff-amps.
As an engineer, eventually you will have to insert an equation into your written work or presentation. This can be a struggle as equation editors are not always the friendliest. However, there is good news. The equation editor in Word has improved immensely (I am using version 2010 here). In this blog we look at how to insert an equation into a Word document. As a bonus, there is information on how to insert an equation into a web page with an html code generator website.
Wait a minute. Let’s see if I understand this. (Here I’m channeling you, the puzzled reader, after you’ve grabbed me in the coffee break of a Filter Wizard lecture morning). The frequency of the nth harmonic of a sinusoid is n times that of the fundamental. The nth harmonic distortion is defined as the ratio of the amplitude of the nth harmonic to the amplitude of the fundamental. So the 1st harmonic distortion is… the ratio of the amplitude of the fundamental to the amplitude of the fundamental and that’s… unity. I. Do. Not. Understand.
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