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9402 maximum Output Current for driving Broadcom HFBR-1521 LWL Transmitter

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9402 maximum Output Current for driving Broadcom HFBR-1521 LWL Transmitter

‎11-02-2017 02:51 AM

Hello,

I would like to connect a Broadcom HFBR-1521 LWL Transmitter to the NI 9402 DIO in a cRIO-9063 cabinet.

What is the maximum Output Current of the 9402?

If it is below 20mA I'm going to use an additional driver.

 

Best Regards,

Chris

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Re: 9402 maximum Output Current for driving Broadcom HFBR-1521 LWL Transmitter

‎11-02-2017 04:19 AM

Most DIO only handle more around 4mA.  From what I am seeing in the spec, I would say the 9402 is rated for 2mA.  So you will definitely need a buffer circuit.

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