bandwidth and high gain amplifier

[smokie]

Is it possible to increase the bandwith of a high-gain amplifier by
substituting two lower gain amplifiers?

 

[Kevin Aylward]

Is it possible to increase the bandwith of a high-gain amplifier by
substituting two lower gain amplifiers?

Yes.

Assuming that the amplifiers are op-amps, then having two, each with
lower closed loop gains, will result in great overall BW. This is
because that closed loop BW of an op-amp is inversely related to its
closed loop gain.

Kevin Aylward
[email protected]
http://www.anasoft.co.uk
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