Common-mode rejection ratio (CMRR) is the measure of rejection by the device of unwanted input signals common to both input leads, relative to the wanted difference signal.
Questions tagged [cmrr]
46 questions
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How can I calculate CM and DM gains for this model?
Regarding the second page of this document, in the first example it calculates the DC CMR due to line imbalance Rs and an explanation is given in the first paragraph below (ignore the second example):
I don’t understand where the numbers 0.9990 and…
cm64
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How much will the overall CMRR degrade due to impedance imbalance?
If the CMMR of a differential amplifier is given as 100dB at 50Hz in its datasheet, this CMRR value assumes the applied voltages wrt to common ground are equal. However in practice, if the line and source coupled to the amplifier are not perfectly…
user16307
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How to quantify the error introduced by CMRR given in dB?
Here is the extract from the manual:
I want to have an idea about how much voltage error occurs when applied 10V signal. And is this CMRR zero if differential ended configuration is used?
How can I calculate the Vout error for 10V input? Whats the…
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