EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB
Rev. 0 | Page 4 of 12
EVALUATION BOARD SOFTWARE
SOFTWARE INSTALLATION
The AD56xxEB evaluation kit includes self-installing software
on CD-ROM. The software is compatible with Windows® 2000
and Windows® XP.
If the setup file does not run automatically when you insert the
CD, run the setup.exe file directly from the CD.
Install the software before connecting the evaluation board to
the USB port to ensure that the evaluation board is correctly
recognized when connected to the PC.
1. After the installation from the CD-ROM has completed,
connect the AD56xx evaluation board to the USB port
using the cable supplied.
2. The software detects the evaluation board. Follow the
instructions on the dialog boxes that appear to complete
the installation.
SOFTWARE OPERATION
1. From the Analog Devices menu, select Start > All
Programs > Analog Devices >AD5620-40-60-62
>AD56xx Evaluation Software.
For older PCs, click Start > Programs > Analog Devices >
AD5620-40-60-62 >AD56xx Evaluation Software.
The Device Selection dialog box opens, as shown in
Figure 1.
05540-002
Figure 1. Device Selection Dialog Box
2. Select a part number and click OK. The main window
opens, as shown in
Figure 2.
05540-003
Figure 2. Main Window
3. To program the DAC, type the data word in the HEX field of
the Enter Data Word section. Then click Program DAC.
4. To read back the output voltage using the on-board ADC,
click Read Voltage.
The DAC output voltage for the
AD5662 is given by
⎟
⎠
⎞
⎜
⎝
⎛
×=
65536
D
VREFV
OUT
For the AD5620/AD5640/AD5660 parts, the DAC output
voltage is calculated as
⎟
⎠
⎞
⎜
⎝
⎛
××=
N
OUT
D
VREFV
2
2
where
N = 12 for the AD5620, 14 for the AD5640, and 16
for the
AD5660.
5.
From the Choose Power Down Option, select one of the
following:
• 1K to Gnd
• 100 K to Gnd
• Three State
After selecting an option, the AD56xx powers down and the
output goes to zero. To resume operation, select
Normal
Operation.
