What I am trying to do: I have a special photo detector(nano-wire, operates at very low temp) that creates an output trigger pulse every time it detects a photon. This trigger pulse(see picture attached) is 20-25ns wide and about 500mV in amplitude. We need to use this pulse to trigger more than one electronics in our set up but unfortunately the amplitude is too low to be able to do that. We are expecting that we will be recording photons at the rate between 1Hz-5kHz. So the trigger that this detector will produce will be irregular instead of a continuous stream. So for that purpose it was suggested that I use an operational amplifier as a comparator. I will feed the trigger from the detector into the comparator and once the pulse goes higher than a set reference(that I will provide) then the comparator will produce a signal higher in amplitude and I can use that as my trigger. So, I bought an op amp chip from analogue devices and also an evaluation board.
The thing I need help with : I don't know how to use the eval board and I have many questions including,
- Where does the my opamp chip go? I purchased it separately. However it seems like there is already a chip attached in here.
- How do I make the connections? Will I put in the trigger into the IN+ port and ground the IN-?
- I thought I would have only one output but there are two output ports here.
- On the left side, there are ports labeled Vcc and VTT, and on the side of these ports are tiny loops that are labeled VTT TP14 and VCCTP11. What are they for and what do these labels mean?
- Then there is a SMA port 'LE-HYS'. What is that? Do I have to use all these extra ports?
Any help to get me started would be appreciated.
The eval board I am referring to : : https://i.stack.imgur.com/NdmXN.jpg