Datasheet

V =
DAC_CHANNEL
V Code_in_Decimal
S
´
1024
V =
DAC_CHANNEL
15V 68
´
1024
=0.996V
www.ti.com BUF08630EVM Software Overview
5.2.2 Measuring the Power Supply
You must measure the power supply (V
S
) with respect to the GND on the BUF08630_Test_Board and
enter it in the V
SUP
field located in the top section of the software interface, as shown in Figure 19.
Figure 19. Measuring and Entering Power-Supply Voltage
The voltage out of each DAC is calculated according to the V
S
value entered. For example, changing the
value in the channel 6 cell as shown below immediately changes the output of channel 6 to 0.996V. The
calculation is performed according to Equation 1.
(1)
Example 1.
Channel 6: Code 44 (hexadecimal) = 68 (decimal)
19
SBOU091–September 2010 BUF08630EVM User Guide and Software Tutorial
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