Can the outputs of the Laser Driver AD9665 be put in parallel?

markusvr on Aug 29, 2014

The output current of the laser driver AD9665 is limited to 950 mA typical. To reach output currents in the range up to 2 Ampere, could the outputs of 2 or 3 of those chips be put in parallel?

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on Sep 4, 2014 7:01 PM
Hi, Markus.

Yes, you can connect 2 or 3 AD9665 in parallel to produce an output voltage of 2A but be sure to synchronize the signals that drive each AD9665 for a good response. To help you better, can you provide details on the following:

1. What is your application?

2. What kind of current waveform are you trying to generate?

3. What are you driving?

Regards,

Anna
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0 markusvr on Sep 15, 2014 2:22 AM

Hi Anna,

We are driving a semiconductor laser with a pulse pattern and would like to modulate the current in intensity. Inputs of the AD9665's would be driven by an FPGA.

Best Regards

Markus
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