Re: inverting photo detector polarity on a microscope

Posted by Craig Brideau on
URL: http://confocal-microscopy-list.275.s1.nabble.com/inverting-photo-detector-polarity-on-a-microscope-tp7588654p7588656.html

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These Op Amp evaluation boards should get you there. Just make sure to get
a rail-to-rail version and buy the appropriate +/-5V (or whatever) supply
to handle the down swing.
https://www.digikey.com/products/en/development-boards-kits-programmers/evaluation-boards-op-amps/788?k=instrumentation+amp&k=&pkeyword=instrumentation+amp&FV=ffe00314&quantity=0&ColumnSort=0&page=1&stock=1&pageSize=25

Craig

On Wed, Sep 5, 2018 at 12:15 PM Michael Giacomelli <[hidden email]> wrote:

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> Post images on http://www.imgur.com and include the link in your posting.
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>
> Hi,
>
> I would like to test out a new detector module in a commerical Olympus
> confocal body.  Unfortunately, the detector uses an inverting amplifier
> (0->-1 V), while the Olympus assumes a non-inverting transimpedance
> amplifier (0->+1 V).  I've spoken with them and there is no way to change
> the A/D configuration on this specific model, and so I cannot use the
> detector as is.
>
> Is there a commerical solution available for adapting something like this?
> I would like to avoid having to design and breadboard an inverting buffer
> amplifier if I can avoid it.
>
> Thanks,
> Mike
>