Q
Our laser diode has a monitor photo diode with 1439.554 uA for maximum laseroutput power.However, your Continuous wave laser average power controller
ADN2830 accepts Monitor Photodiode currents from 50ua to 1200uA.How can I
entegrate your laser controller and my laser? Could you give me some more
information about the PSET input of the IC?
A
If you are using the control function (not the monitoring function) then thisis possible.
You can connect your photodiode directly to the Pset pin.
Pset is a high impedance node (like the - input or virtual ground of an op-amp).
You need to calculate a resistor value based on the formula on page 5 of the
datasheet (in the "CONTROL" section) ; your diode current x R needs to equal
1.23 volts.
