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ADC5337 DAC No output

Question asked by balajibobot on Aug 11, 2018
Latest reply on Aug 20, 2018 by rrosario

HI All,

 

Am trying to write to the DAC AD5337ARMZ over I2C.

 

The Slave Responds to my request and all registers are acknowledge but i dont see dac output.

 

Regiter Setting.

 

       //DAC A to set at 3V

    Pointer Byte = 0x03;   //sent pointer data to load DAC A&B(

      Data byte 1 = 0x3E;   //PD0,PD1=0,CLRDAC=1,LDAC=1,DAC Value-230Decimal

    Data byte 2 = 0x60;   //remaining DAC A Value

      

I get acknowledge here and I verified using probe too.

       //DAC B to set at 3V

    Pointer Byte  = 0x03;   //sent pointer data to load DAC B

       Data byte 1= 0x3E;   //PD0,PD1=0,CLRDAC=1,LDAC=1,DAC Value-230Decimal

      Data byte 2  = 0x60;   //remaining DAC B Value

I get acknowledge here and I verified using probe too.

 

 

VREF, VDD, Address A0 correct.

My MCU check if its ack and the slave responds and I verified in oscilloscope too,

 

But DAC out is 0V.

 

Schematics attached

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