DAC8760: Probable solution mistake in ±12VDC supplied DAC because positive output control isn´t possible?

Joonas Hollo

Part Number: DAC8760

Hi,

We have used DAC8760 converter earlier with unipolar supply (24VDC) and it has worked well.

Now we utilize this very same circuit for another application having ±12VDC supply. Below is schematics of the design.
Currently we have faced issues with positive output voltage control. Negative side of VOUT is working perfectly but positive VOUT gives
only 0,7V maximum. Could there be somekind of schematical mistake made?

over 2 years ago

0 Lucas Burnette over 2 years ago

TI__Expert 4590 points

Hi,

I don't see anything immediately incorrect with your schematic.

Can you measure and verify your AVDD?

Can you read your control register and the data register after writing a higher positive value to the DAC?

Thanks,
Lucas

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DAC8760: Probable solution mistake in ±12VDC supplied DAC because positive output control isn´t possible?