EVM Software Overview
5.2.5
Dual Output Enable (DACx760 devices only)
The DACx760 devices that feature both current and voltage outputs also feature a dual output enable
option. This feature is not included on the DACx750 current output only devices. To enable dual outputs
toggle the
Dual Output Enable
button shown in
and select a voltage and current output range.
The
Output Enable
and
DAC Value
shown in
are used in dual output mode to enable the pair of
outputs and to set the output code.
Figure 16. Dual Output Enable
5.2.6
Enabling Voltage Overrange (DACx760 devices only)
shows the
Over Range
toggle button. This button enables the DACx760 overrange function,
which increases the voltage output range by 10% (not included in DACx750 devices).
Figure 17. Enabling Over-Range Operation
5.2.7
Accessing Calibration Registers
The DACx760 and DACx750 feature programmable gain and offset functions. Set the gain and offset with
the
Gain Calibration Code
and
Zero Offset Calibration Code
fields. As shown in
, the fields on
the left allow a 16-bit hex value to be entered directly, and the fields on the right allow decimal values to
be used. The
Cal. Enable
toggle button applies the gain and offset to the data register. After reading all
registers, the
DAC Value
field shows the changes.
Figure 18. Calibration Registers
14
DACx760EMC-EVM
SBAU229 – April 2014
Copyright © 2014, Texas Instruments Incorporated
