A Time of Giving Thanks
Jonathan Harris 11/21/2018 Post a comment
It is imperative to understand how a device or system will respond when subjected to radiation so that its operation in the harsh, radiation-rich environment of space can be predicted.
ADI Standard Space Products Screening
Jonathan Harris 9/27/2018 Post a comment
Space screening for the standard space product offerings which include products such as ADCs, DACs, comparators, amplifiers, voltage references, switches, isolators, regulators, and attenuators
Space Mission Lifetimes
Jonathan Harris 8/18/2018 Post a comment
Designs for space applications are commonly created with mission life expectations reaching 15 to 20 years and even longer in some cases
Why All This Stringent Testing?
Jonathan Harris 7/26/2018 2 comments
I’d like to take a step back from the details and specifics related to radiation testing and focus a bit on some of the reasons that advanced testing and screening is performed on space qualified products.
A Quick Overview of Radiation Effects
Jonathan Harris 12/21/2017 Post a comment
While brainstorming on topics to write about this month it occurred to me to combine the two areas in which I’ve worked and talk a bit about a few types of radiation effects on high speed ADCs.
Load Regulation Measurement Coding in Python
Jonathan Harris 11/26/2017 2 comments
In the spirit of continual learning and, as a follow on to my previous blog, I thought I would continue discussing coding for measurements by providing an overview of my Python script for load regulation.
Pulling an All-Nighter
Jonathan Harris 9/13/2017 4 comments
Do you recall those days in college when a project or assignment was due and you had to pull an all-nighter to get it finished by the due date?
Measuring LDO Line Regulation for a Novice
Jonathan Harris 10/28/2016 Post a comment
A device going into space must be much more rigorously evaluated than a device going into a commercial product. Hence the need to do a good deal more characterization and ‘proving out’ of the device to make sure that it will endure the harsh environment in space as well as the long lifetimes required.
Virtual Eval Through the Eyes of an ADC, Part 2
Jonathan Harris 7/15/2016 Post a comment
Now that we’ve had a chance to learn a bit about the tool we will take a look at using Virtual Eval to predict the performance of the AD9680-500 which has integrated digital downconverters (DDCs) and will compare simulated data to measured data.
Virtual Eval Through the Eyes of an ADC
Jonathan Harris 6/21/2016 2 comments
As I mentioned in my last blog I would like to take some time in this blog to introduce you to the new online simulator tool offered by Analog Devices called Virtual Eval.
IMS2016: Day 2 Review
Jonathan Harris 5/26/2016 Post a comment
. The day started off just a little slower than yesterday but quickly picked up pace and resulted in another day of steady booth and floor traffic. I had some great questions about the products we are displaying in my demonstration as well as many questions on our other technology on display at the IMS show.
IMS2016: Day 1 Review
Jonathan Harris 5/25/2016 Post a comment
I hope that you had a chance to visit the IMS2016 show during the first day. There was a noticeable increase in floor and booth traffic compared to the show last year. Perhaps you all read my preview blog this week and decided to come and check out our great demonstrations at the Analog Devices booth!
Analog Devices Design Tools: ADIsimRF Part 3
Jonathan Harris 9/24/2015 2 comments
The ADIsimRF tool has many different calculation possibilities which are very nice to have on the hand. These can be useful when either in the lab collecting data or when working on a report in your office. The tool outputs are great to double check experimental results or to set expectations when about to take data.
Analog Devices Design Tools: ADIsimRF Part 1
Jonathan Harris 7/19/2015 10 comments
The topic of this blog came up while at the IMS show and one of my colleagues mentioned that I should discuss the ADIsimRF tool as a part of the series. I thought this was a marvelous idea. I’ll have to precursor this discussion with the fact that I am actually an RF guy from my previous employment at an RF company which was my first position when I graduated from college.
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.
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 – 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.
Analog Devices Design Tools: ADISimADC Performance Metrics
Jonathan Harris 3/27/2015 1 comment
. I received a very good reader question from my last blog post regarding the various parameters that are reported by the tool. Let’s take a look at an example and explore the parameters that are returned. In this example we will look at the AD9643-250.
Removing the vuvuzela narrow-band noise was presenting challenges to broadcast engineers
This article discusses how using a single synchronous buck controller can output the most common voltage rails, and accommodate a wide range of operating input voltages from 3V to 40V, and at a reasonable BOM cost.
This article explains how the latest-generation SiC FETs are ideally suited to new inverter designs with lower losses than IGBTs and proven robustness against short circuits, even at high temperatures and under repetitive stress
There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t. That’s to use the spreadsheet ‘solver’ functionality to adjust component values in the search for a better-fitting circuit – or even to find a set of component values for a circuit you can’t otherwise design.