Each differential amplifier has a high common-mode rejection ratio.
Common-mode rejection ratio (CMRR) is generally defined as the ratio between the differential voltage gain versus the common-mode voltage gain:
For common-mode voltages in the DC and low-frequency AC range (50 Hz), a high common-mode rejection is usually easy to achieve.
An audio line receiver which tolerates a wide range of balanced and unbalanced source impedances with a minimal deterioration of the line receiver's common-mode rejection ratio.
However, the common-mode rejection of amplifiers is frequency-dependent and becomes considerably lower as the frequency increases.
A high level of common mode rejection eliminates many spurious influences.
The common mode rejection ratio (CMRR) is simply a ratio of the differential mode gain to the common mode gain, and is defined as:
The excellent common mode rejection across the entire frequency range effectively suppresses fast-switching common mode signals.
An ac-coupled differential amplifier having a high common mode rejection ratio (CMRR) and input impedance is disclosed.
The common mode rejection ratio for this system is 102 dB and the isolation mode rejection ratio is 140 dB.
At 136dB, the module’s common mode rejection ratio (CMRR), a measurement of noise rejection, is the highest on the market.
The invention provides a line filter with improved common mode rejection, which has a good attenuation characteristic in a wide range of low-frequency to high-frequency bands.
The invention relates to an amplifier which in a preferred embodiment has a common mode rejection ratio (CMRR) above 100 dB at or around 1 MHz.
Also, this high-performance amplifier delivers 13dB typical gain, 20 dB Common-Mode-Rejection-Ratio (CMRR) and very high linearity of 42 dBm OIP3 @ 2000 MHz.
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Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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