REF5050: Output shows 2.5V

ttd

Part Number: REF5050
Other Parts Discussed in Thread: DAC80502

Dear Technical Support Team,

REF5050 is used for DAC80502.

Expected output voltage of REF5050 is 5V, however it shows 2.5V.

Input voltage is 10V and I can see it with oscilloscope.

How do I improve 5V output. See attached schematic.

Best Regards,

ttd

+1 Ben C over 4 years ago

Hi TTD,

I am not familiar with the DAC80502 but was the internal 2.5V reference disabled so the DAC80502 can accept the 5V from the REF5050? See below:

The internal VREFIO is 2.5V. See below:

Also, can you disconnect the REF5050 from the DAC80502 and see if the REF5050 is outputting 5V?

Ben

+1 Ben C over 4 years ago in reply to Ben C

HI TTD,

Please let me know if you have any other questions. Good luck to you and have a great weekend!

Ben

0 ttd over 4 years ago in reply to Ben C

Hi Ben,

Disabled internal reference makes REF5050 5V output.

Thank you for your support.

Best Regards,

ttd

0 Ben C over 4 years ago in reply to ttd

Hi TTD,

I am so glad to hear that the output is 5V now. Good luck to you!

Ben

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