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-290 dB Distortion?
-290 dB Distortion?
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Old 15th June 2019, 09:42 PM   #491
MarcelvdG is offline MarcelvdG  Netherlands
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Location: Haarlem, the Netherlands
Originally Posted by hellokitty123 View Post
For my PCB prototype I want to use series/parallel resistors as suggested for the feedback network for reduced noise and distortion, however what do you suggest would be a reasonable amount of series/parallel resistors to achieve X noise/distortion?
Vishay metal foil resistance network ICs seems like a good option but they are very expensive and I don't know if they are overkill or not.
See post 343 if you are still targeting -290 dB. For each doubling of the voltage across a resistor, D3 should increase by 12 dB and D2 by 6 dB.
Old 15th June 2019, 09:53 PM   #492
spladski is offline spladski  United Kingdom
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Join Date: May 2012
Modifying Jan's analogy, there is a rope disappearing into a pond. The coil at the bottom of the pond is infinite. You can pull as much rope as you like from the pond ad infinitum. At some point you take a measurement. However, the rope must be returned to its operating place, the use case. Henceforth the only extra rope you will get, is if the level of the pond is lowered.

Otherwise, the deaf dumb and blind kid sure plays a mean pinball.
Old 15th June 2019, 10:47 PM   #493
syn08 is offline syn08  Canada
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Originally Posted by hellokitty123 View Post
Sigh, screw you guys.
You are welcomed.
Old 15th June 2019, 11:36 PM   #494
davada is offline davada  Canada
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Join Date: Jul 2004
Location: Fort St John, BC Canada
Originally Posted by hellokitty123 View Post
Sigh, screw you guys. Clearly the point of constructive conversation has ended. I'll take my leave again.
Hellokitty123 you just said screw you to the guys that can help you most. The point of constructive conversation began with the first criticism you got here.

These guys are not only educated but have 40+ years of experience. Yet you openly admit to not understanding some of the most basic fundamentals of what you're doing.

You keep telling everyone that they didn't read what you wrote. Well they did read it. The issued is that what you wrote is fundamentally wrong and that is the source of your frustration. Not these gents. They went out of there way to point that out.

If you were to step down from your position, I'll bet these guys would even forgive the screw you and help you with what you're doing.
Old 15th June 2019, 11:43 PM   #495
jazbo8 is offline jazbo8
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Location: In Transient
-290 dB Distortion?
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