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Recent content by ash3

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    Inverted Op-Amp Variation

    My ADC is a 24Bit ADC with 2.4V voltage reference. which means that the voltage change that will change the least significant bit [2.4V /((2^23) - 1) ]= 286nV. However measuring the output of the ADC repeatedly with fixed voltage input before the MFB LPF, im getting ADC output range in the...
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    Inverted Op-Amp Variation

    Hi KlausST, FvM & Dana, Thanks for the respond, i appreciate it. I have done some reading of MFB Low Pass Filters, and indeed it is a circuit used for ADC input application, as what i am using it for. I can also perform simulation using this tool in this link **broken link removed** I am...
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    Inverted Op-Amp Variation

    Hello, Newbie here, I would like to understand on how to calculate the gain of this inverting Op-Amp, as the Rin2 is normally not there for a standard inverting Op-Amp If I could understand how does the 0.001uF and 0.01uF Capacitor is an advantage for this circuit it will be super...
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    Network Analyzer Normalization(Callibrated vs Uncalibrated measurement)

    Hello, I have a question regarding Network analyzer Normalization( Calibrated vs Uncalibrated measurement) My counterpart is measuring a Insertion Loss drift transmission line and from 10MHz to 67Ghz. Currently Im trying to duplicate the "drift failure" that he sees in the transmission line...
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    Problem with inductive kickback

    Hi FvM, I do agree with you observation, however having a Zener Clamp will actually divert the energy created by the inductive kick back in to a different channel that avoids the sensitive part such as Drain - Source Junction.
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    Problem with inductive kickback

    Hi guys, I got the samples in, It seems to work fine, the cut-off of zener diodes clamp the spike at ~34V. It seem to work fine for me
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    Problem with inductive kickback

    Hi Cris, Thanx.. i'll update the result here as soon i get the samples in..
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    Problem with inductive kickback

    Hi Chris, Thanx for your respond. Appreciate it. adding the diode will actually pulled it the spike down to 24V. Added after 1 hours 9 minutes: Hi , I just found out that im going to have limitations on PCB re-layout. Hence i need to work with the existing PCB I did some browsing to...
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    Problem with inductive kickback

    Hi, Im a newbie here would like to ask some advise on handling Inductive kick back on inductor switches that im working on. It seems like the Mosfet(Si2308DS) (DataSheet) occasionally damage after operating a certain duration. (Drain source resistant = ~0ohm) I found out the Absolute Max...
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