Datasheet

Evaluation Board User Guide UG-309
Rev. A | Page 5 of 12
USING THE EVALUATION BOARD SOFTWARE
When the software is launched, the main window appears (see
Figure 4).
10112-004
Figure 4. Main Window
The desired data loads and updates the DAC’s output when
LDAC is brought high.
The reset button, /RS, updates all channel outputs to zero scale
or midscale when MSB is pulled low or high.
EXAMPLE
Using the internal voltage reference in the unipolar two-
quadrant multiplying mode (V
OUT
= 0 V to −V
REF
), with LDAC,
MSB, and
RS
tied high, specify quarter scale (0x4000 or 16,384
decimal) in the Input Data box and click Wr ite DAC. The
expected output obtained is
V2.5
536,65
384,16
10
536,65
−=×−=×−=
D
VV
REF
OUT
If
RS
is tied low, with MSB tied high, a reset takes place in
the part, changing the output to half scale (0x8000 or 32,768
decimal).
V5
536,65
768,32
10
536,65
−=×−=×−=
D
VV
REF
OUT