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The basics of testing op amps, part 4:Testing op amps requires stable test loops

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Rokeye
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re: The basics of testing op amps, part 4:Testing op amps requires stable test loops
Rokeye   5/23/2012 11:46:59 PM
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You never know what might come out of the "circjuits" though! :)

studleylee
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re: The basics of testing op amps, part 4:Testing op amps requires stable test loops
studleylee   5/23/2012 6:25:12 PM
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"If R1 is reduced to 5 kW, " I think you've discovered some serious power being introduced from dark matter here, call Cern ;-) Kidding aside: Good article thanks! -Lee

Tony Casey
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re: The basics of testing op amps, part 4:Testing op amps requires stable test loops
Tony Casey   5/23/2012 1:55:07 PM
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A common convention in Europe is to always use range multipliers, including instead of decimal points, which can easily be lost especially for photocopied documents. So, 50 (ohms) becomes 50R or 50R0, and 21.6k becomes 21k6. Unambiguous.

WKetel
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re: The basics of testing op amps, part 4:Testing op amps requires stable test loops
WKetel   5/23/2012 12:38:38 PM
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I suspect that somewhere in the editing and layout somebody assumed that the "K" had been forgotten on R2. I had a similar problem with drafting detailers at one job, they assumed that the "dumb engineer" had forgotten to add the "K" notation on many of the resistors. The result was that when the technician built up the pre-production units they just did not work right. Correcting the values, the drawings, and the detailers fixed the problem.

Daryl Hiser
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re: The basics of testing op amps, part 4:Testing op amps requires stable test loops
Daryl Hiser   5/18/2012 6:43:07 PM
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It appears that the figure that we submitted had this error and we failed in catching it in the proof reading process. Thanks again for reading the article and for pointing this out! DH

Daryl Hiser
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re: The basics of testing op amps, part 4:Testing op amps requires stable test loops
Daryl Hiser   5/18/2012 5:30:58 PM
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djoffe, R2 should be 50O, good catch. I have no idea how this got inadvertantly translated in the process of publication, but I appreciate your keen eye and we will get this fixed. DH

djoffe
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re: The basics of testing op amps, part 4:Testing op amps requires stable test loops
djoffe   5/17/2012 1:49:39 PM
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Figure 1 has a component value problem. Should R2 be 50 Ohms, not 50K? That would make the 1001xVio marking correct.

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