Hi,

I am interfacing AD5392 external DAC using SPI with Renesas v850 controller ...

When i tried to write input reg0=reg1=1 with test value= 0x3aa but we are not getting DAC(Channel 0) output voltage.  

We ensured SPI 24bits with MSB first.

Need help…

Can I connect two AD5392 A to B in series and connect their wipers
to provide a 2X range while maintaning the 5 C/ppm and +/+ 1% tolerance?

I use I2C betweeb MCU and AD5392.

I set AD0=1,AD1=1 in the circuit and send 10101110 from MCU , but AD5392 does NOT reply ACK

Please refer to the attached screenshot.

And I attach the power sequence timing diagram with DVDD,AVDD waveform.

would you…

I can't believe I have to ask this here, but I can't seem to make sense of the datasheet. 

On page 8 in the spec table, it says 0/AVDD (which is what I want)

On page 23 it says VOUT=(2)(VREF)(x2/2^n) which gives 2.5V at x2=4095 because VREF is…