Re: Update on laser distance meter project (master thesis) and question

I read in sci.electronics.design that Yannick <yannick_de_wit@xxxxxxxxxx> wrote (in <cc50d220.0504011305.180f3939@xxxxxxxxxxxxxxxxxx>) about 'Update on laser distance meter project (master thesis) and question', on Fri, 1 Apr 2005:

In simulation this worked wonderfull,more gain, more bandwidth then with my singe 68K feedback resistance. But in practice the result was worse. What can this be? everything is made in smd components with a open ground plane to reduce capacitance to ground and everything is shielded in a RFI case.

At what frequency? What is the open-loop bandwidth of the op-amp? What closed-loop gain are you expecting?

There really should not be a large difference between simulation and reality in a case like this. I think your simulation maybe includes some 'ideal' parts.
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