Question
Download Solution PDFWhat is unity gain amplifier also known as?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFAmplifier
An amplifier is an electronic device that increases the voltage, current, or power of a signal.
The voltage gain of the amplifier is given by:
\(A_v={V_o\over V_i}\)
where, Av = Voltage gain
Vo = Output voltage
Vi = Input voltage
Explanation
If the voltage gain of the amplifier is unity i.e. Av = 1, then
\(1={V_o\over V_i}\)
\({V_o= V_i}\)
For unity gain, the output voltage is equal to the input voltage, hence unity gain amplifier is also known as the voltage follower circuit.
Last updated on Jun 2, 2025
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