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Electronics Engineering

Differential Amplifier CMMR Calculator

Electronics Engineering

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Differential Amplifier CMMR

Equation and meaning

\[CMRR = \frac{h_{fe} \cdot R_{e}}{R_{s} + h_{ie}}\]

CMMR for Zi for Differential Amplifier

Variables in this formula

CMRR — Cmrr
Enter this value unless it is the selected unknown.
h_fe — H Fe
Enter this value unless it is the selected unknown.
h_ie — H Ie
Enter this value unless it is the selected unknown.
R_e — R E
Enter this value unless it is the selected unknown.
R_s — R S
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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