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Rick Zarr is a technologist for Texas Instruments and has been in the semiconductor industry since 1984...
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Settling Time
Posted
6 days ago
by
Bruce Trump
Settling time is the time required for an op amp to...
Energy Zarr
Slew Rate—the op amp speed limit
Posted
14 days ago
by
Bruce Trump
Slewing behavior of op amps is often misunderstood...
Energy Zarr
Grounding Principles
Posted
27 days ago
by
Bruce Trump
In a previous blog on supply bypassing , I cautioned...
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Energy Zarr
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Industrial Strength – Part III
Richard Zarr
06 12 2013 01:14 PM
In my prior two post ( Part I and Part II ) on designing industrial strength systems I discussed thermal management issues and various methods for hardening designs against EMI and ESD. In the last installment I discussed system failures due to lightning...
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Industrial Strength Design – Part II
Richard Zarr
05 14 2013 02:13 PM
In part 1 of this blog series I talked about harsh environments which include mines, mills, chemical plants, et. al. Designing for those environments means taking into consideration extremes which normal products (e.g. consumer goods) would never experience...
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Industrial Strength Design - Part I
Richard Zarr
04 29 2013 04:08 PM
When you think of engineering for industrial applications , my first thought goes to environmental conditions of applications such as steel mills. There are motor controllers working right next to (or attached to) giant electric furnaces and smelters...
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Revitalizing Op-Amp Topologies
Richard Zarr
04 16 2013 10:42 AM
If you are as old as I am, you may remember the quintessential “Op-Amp Cook Book” by Walter Jung (I have an autographed copy) or the must have “Intuitive IC Op-Amps” by Tom Frederiksen (I also have an autographed copy). Many of...
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To Be Single or Differential, That is the Question
Richard Zarr
04 09 2013 01:29 PM
Whether 'tis nobler to signal via complementary means, or to take arms against a sea of noise… ah, but I take literary license with Shakespeare. But it does raise a real question… should a designer use differential or single ended methods...
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Everything is Part of the Circuit
Richard Zarr
02 12 2013 09:57 AM
Now I’m sure as engineers we have all studied circuit modeling. SPICE is an amazing tool to emulate how your final circuit might perform… but what’s really interesting is that passive components such as resistors, capacitors, inductors...
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Where Did I Go Wrong? The System Edition
Richard Zarr
01 17 2013 10:03 AM
In my previous blog “ Where Did I Go Wrong? Funny Mistakes in Electrical Engineering ” I discussed some simple, yet devastating things that led to circuit failures. In this post, I’m going to touch on a couple items that caused several...
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Tis the Season to Save Energy
Richard Zarr
12 10 2012 09:00 AM
In my never ending quest to lower our carbon footprint, I bring you good tidings of progress made and lessons learned. Recently my wife and I became “empty nesters” and our two daughters are learning that a one degree change in the thermostat...
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The Top 5 Reasons to be Thankful for CMOS
Richard Zarr
11 20 2012 02:14 PM
Tis the season to be thankful… November 22 nd marks Thanks Giving Day in the US where people gather around a table to consume a feast and give thanks for friends and family. The engineering community has much to be thankful for as well. The number...
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Tools for Joules
Richard Zarr
11 12 2012 02:35 PM
Since the dawn of time, man has invented tools to make life easier… and today is no exception. Look around and you’ll find that just about every man made item falls into the category. Don’t believe me? Try it out… OK, “automobile”...
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