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If you want to avoid monotonicity errors, resistor tolerance (actually matching) has to be within 2**(-n), which would be 0.1% for a 10-bit converter, and 1 ppm for 20 bits. This is achieved in

A common version of the ~$125 60 MHz Chinese AWGs uses an R-2R network instead of a DAC. The Pico can write the sample values to as many R-2R ladders as are needed to let all the ladders settle before

Good luck with making the R-2R work with that many bits. Even if you did, you still have the problem of buffering and the settling time on the outputs(ringing and ripple might be insignificant at low

This popped up on HackaDay: https://hackaday.com/2023/11/29/arbitrary-wave-generator-for-the-raspberry-pi-pico/ After looking at the datasheet for the Pico I decided to splurge and buy 25 of them from

-- Prof. Thomas H. Lee Faculty Co-Director, SystemX Alliance Director, Stanford-Samsung Research Initiative Allen Ctr., Rm. 205 420 Via Palou Mall Stanford University Stanford, CA 94305-4070

I have been using a number of low cost SMA attenuators of Chinese origin for 4-5 years, sold with a 2W 6GHz rating.? The match is not great (quoted as <1.25:1), but they are good enough for general

From the age of 12 I'd always asked 'but what are radio waves'. The closest i have ever got to an answer is from Fleisch's book cited here. It is worth reading and re-reading.

Jeff, Thanks for taking the time to write an excellent essay. I am a geoscientist, not an EE. In my view the major problem with EE education is the course loads don't allow students enough time to

Can't say I disagree with the way that the HR droids work. On the other hand, I might be able to take a stab at the refrigerator door. answer #1:? Badly unless it's magnetic answer #2: It seems to me

I never took a course in Vector Calculus, I learned what I know of it by studying Maxwell's equations. I learned most of my mathematics in physics and engineering classes. Math professors are obsessed

One last suggestion: Check out the YouTube channel Machining and Microwaves. Neil has a lot of really cool stuff happening there. You will spend hours there I am sure! Sam Reaves Electronics and

Oh, yeah, didn't comment here:Yes, you are entirely correct. Now the phase shift of the wave through the part (or off the surface of a parabola, BTW) is significant enough to cause errors.Usually, 1/8

Wow Jeff I was waiting to see if you would chime in on this. Kathy Joseph of Kathy Loves Physics YouTube channel does a great talk on this. She is a fascinating person whom I first became acquainted

Hello All! Don't misunderstand me - I am not saying you need to solve field theory math to be able to do microwave work (it is nice though). But, you should understand the basics if you want to be as

There are a great video course from MIT , Walter Lewin was the profesor . Sadly he was fired from MIT. They clases were very fun and complete ending with Maxwell equations . The course is 8.02x. This

In college I had a calculus professor from Czechoslovakia. When we did not understand a concept he used to sigh and say "every child in my old country knows this" I was proficient in the circuit

Here is a website with some explanation: https://www.maxwells-equations.com/ This book is good. It includes explanations of the vector calculus operators:

Maxwell's Treatise is worth a read (he was a genius; lesser mortals have built careers on his throwaway margin notes -- the switched-capacitor filter comes to mind), but only after you've mastered the

Tom, As a student, following a recommendation of the professor to the class, I tried to read Maxwell's Treatise but gave up, as I recall, because his use of quatrions? instead of vectors made it hard

I think many students feel as you do. Part of the reason, I suspect, is that most students don't study vector calculus first. Without that background, Maxwell's equations seem to be written in