10 Questions
Explain the function of a differential amplifier in electronic circuits.
A differential amplifier amplifies the difference between two input voltages while suppressing any voltage common to the two inputs.
What is the ideal output equation for a differential amplifier?
The ideal output equation for a differential amplifier is $V_{ ext{out}} = A(V_{ ext{in}}^{+}-V_{ ext{in}}^{-})$, where $A$ is the gain of the amplifier.
How are single amplifiers usually implemented?
Single amplifiers are usually implemented by either adding the appropriate feedback resistors to a standard op-amp or with a dedicated integrated circuit containing internal feedback resistors.
What is the output equation for an ideal differential amplifier?
The output of an ideal differential amplifier is given by $V_{ ext{out}} = A_d(V_{ ext{in}}^{+}-V_{ ext{in}}^{-})$, where $A_d$ is the gain of the ideal differential amplifier.
In what type of circuits is a differential amplifier commonly found as a sub-component?
A differential amplifier is commonly found as a sub-component of larger integrated circuits handling analog signals.
What does a differential amplifier amplify?
The difference between two input voltages
What is the output equation for an ideal differential amplifier?
$V_{out} = A (V_{in}^{+} - V_{in}^{-})$
How is the gain of a differential amplifier denoted in the output equation?
A
How are single amplifiers usually implemented in differential amplifiers?
By adding appropriate feedback resistors to a standard op-amp
Where is a differential amplifier commonly found as a sub-component?
Larger integrated circuits handling analog signals
Test your knowledge of differential amplifiers with this quiz. Explore the functions and applications of this type of electronic amplifier, and understand how it amplifies the difference between two input voltages while suppressing any common voltage.
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