Test and measurement equipment may require galvanic isolation for operator safety (or patient safety in the case of healthcare applications).
The isolation barrier also protects data integrity in the…
S et the signal chain gain so that the amplifiers' total noise is the same or a bit less than the ADC's.
Any higher gain makes the ADC driver work harder without helping the system SNR.
Don't feel…
Take a look at our KWIK (Know-how With Integrated Knowledge) FAQ on this topic. " Bipolar Input, Fully Differential Output, Single Supply ADC Driver Design ". Here we go through a step by step guide to…
Q:
I am designing a new pulsed photodiode measurement signal chain. I would like to design a Transimpedance Amplifier fast enough to pass 1us pulse while maximizing SNR. Is there a way to quickly evaluate…
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I have used the AD7626 in previous designs and I am considering it for a higher frequency measurement design - is there performance for the AD7626 with input frequencies > 1 MHz and can you recommend…
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I am considering using the ADA4945-1 to drive the LTC2387-16 but need some gain at this stage to condition the signal before the ADC. Should I expect the noise and distortion to degrade if I add gain…
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For the output drive signal chain based around a precision DAC, what is the best way to simulate or calculate the total output signal chain error?
A:
The precision DAC Error Budget Calculator…
Q:
How can I quickly check if there is a difference between using a fully differential amplifier vs two unity gain buffers as the ADC input drive circuit for the LTC2387-18?
A:
The Precision ADC…
Q:
I am designing the filtering for my measurement signal chain, are there rules of thumb for which filter order that I should use?
A:
In a signal chain, the order of a lowpass filter, LPF, depends…
The selection of a filter approximation can be determined by considering a frequency and time response trade-off. A Chebyshev LPF amplitude response has higher stopband attenuation to Butterworth or Bessel…
