Question
A dc amplifier has a voltage gain of 100 and this gain is down $3 \mathrm{db}$ at $10 \mathrm{MHz}$. What is the amplifier's bandwidth?
Step 1
The bandwidth of an amplifier is defined as the range of frequencies over which the amplifier operates effectively, typically measured from the lowest frequency to the highest frequency where the gain drops to a certain level, often -3 dB from the maximum gain. Show more…
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A certain op amp hasa unity-gain bandwidth of $f_{t}=15 \mathrm{MHz}$, If this op amp is used in a noninverting amplifier having a closed-loop de gain of $A_{0 C 1}=10,$ determine the closedloop break frequency $f_{B C}$. Repeat for a de gain of 100
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