An op amp has a gain bandwidth product of 2 MHz; at what frequency the gain becomes unity?1000 kHz2000 kHz(2000×2) kHz(1/2000) kHz
Question
An op amp has a gain bandwidth product of 2 MHz; at what frequency the gain becomes unity?1000 kHz2000 kHz(2000×2) kHz(1/2000) kHz
Solution
The gain-bandwidth product for an operational amplifier (op amp) is a constant value. This means that the product of the gain and the bandwidth is always the same. If the gain is 1 (unity gain), then the bandwidth is equal to the gain-bandwidth product.
So, in this case, if the gain-bandwidth product is 2 MHz, then at unity gain, the bandwidth (which is the same as frequency in this context) is also 2 MHz.
Therefore, the frequency at which the gain becomes unity is 2000 kHz.
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