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High Gain, yet sensitive Amplifier

High Gain, yet sensitive Amplifier

High Gain, yet sensitive Amplifier

(OP)
I was wondering if anyone could help me on this subject.
I have a board trace that I want to monitor the voltage/current on. Now, normally this trace has about 20mV at 4Amps running through it.  What I want to do is to have a circuit to send a 5 volt interrupt signal to an AND gate that would shut the circuit down should the voltage get above 84mV.  The other requirements is that I want the interrupt to be generated in less than 30uS...perferrably a lot less.  The final limiting factor is that I have a 2.6, 3.3, and 5 volt power rails so a single supply amplifier would be ideal. I have been looking at amplifiers to do this, but can't seem to find one to fit the bill for this project...unless there is something that might work better for this situation.

Thanks in advance for any information.
-Issac

RE: High Gain, yet sensitive Amplifier

Hehehe I was wondering if you were up to something or just oops'd it.lol

Hey National will have a good comparitor too!

Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com - kcress@<solve this puzzle>

RE: High Gain, yet sensitive Amplifier

(OP)
Wow, I'm impressed about the quick responses!  I guess I should be reading/watching these forums more often.

Thanks again for pointing me in the right direction.

Regards,
-Issac

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