Request for Default/Example Register Values for AD5767

Hi,

It's best practice to also programmatically power down the dither functionality. While grounding the pins correctly provides a 0V dither input, the dither blocks are enabled by default at power-on and should be powered down via software. 

First, perform a SW Reset (recommended before setting the span ), next, Power Down Dither. Then, Set the Output Span to -5V to +5V, this configures the power-up condition P[1:0] to 00 (zero scale ) and span S[2:0] to 110 (-5V to +5V ).

To Write to a DAC Register, for example, to set DAC 0 to 0V within the -5V to +5V span (10V total span, VMIN = −5V, N=4096 for 12-bit): digital code D is calculated as 0V=(10V*D/4096)−5V, which gives D=0.5*4096=2048 (0x800). For the AD5767, this 12-bit data is placed in D15-D4 of the data field.

Br,

Den