A 741-Type OP-AMP has a gain-bandwith product of 1MHz. A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of______________?
Correct answer: A. 50KHz
- A. 50KHz
- B. 100KHz
- C. 1000/17KHz
- D. 1000/7.07KHz
Explanation
A 20 dB voltage gain corresponds to a linear gain of 10. The gain-bandwidth product is therefore divided by 10, giving a bandwidth of 1 MHz/10 = 100 kHz.
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