AnsweredAssumed Answered

AD5752 not working

Question asked by abtron on Apr 11, 2018
Latest reply on Apr 12, 2018 by isantos

Hi,
I'm trying to set AD5752RBREZ (I use internal DAC reference) with Atmega16, but it is not working. It gives no output voltage. Between every step I have a delay. I would like to use bipolar output DAC A with range +-10,8V. Analog power supply is 15V, digital 5V. I don't use SDO output. I have connected SYNC, SCK, LDAC, CLR, SDIN with Atmega16.
My algorithm is:
SYNC LOW
WriteByte(0b00010000)
WriteByte(0b00000000)
WriteByte(0b00000011)  - The first I set Power control register
SYNC HIGH
LDAC LOW
DELAY
LDAC HIGH

 

The same for Output range select register, I send:
0x0C0005

 

After that I send data to DAC Register, for example 0x001A30

What could be wrong? Thanks.

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