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ad5627r, analog output dead, supply and comms ok

Question asked by matjaz_vencelj on Jun 2, 2014
Latest reply on Jun 2, 2014 by matjaz_vencelj

Dear colleagues,

 

we have a problem using the ad5627r that we cannot get to output voltage other than 0V.

 

- Supply and comms are OK, because we successfully flip Vref on/off via I2C.

- No matter what value we write to DAC, the outputs remain low.

- 3V3 supply

- pins: ~LDAC low, CLR high, ADDR floating.

 

We are probably forgetting to enable something but cannot figure what...

 

Any ideas? Thanks!

Matjaz Vencelj

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