Texas Instruments BUF12800, User Manual, Page: 18 / 31

V =
DAC_CHANNEL
V x Code_in_decimal
1024
S
BUF12800EVM Software Overview
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18 SBOU116A – September 2011 – Revised August 2016
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BUF12800EVM Evaluation Board and Software Tutorial
When JMP6 and the software are set as shown in Figure 16 , the second I
2
C address can be configured.
Figure 16. JMP6 Setting for Logic ‘1’
6.2.2 Measuring the Power Supply
You must measure the power supply (V
S
) with respect to the GND on the BUF12800 Test Board and enter
it in the Vsup field located in the top section of the software interface as shown in Figure 17 .
Figure 17. Measuring and Entering Power-Supply Voltage
The voltage out of each DAC is calculated according to the V
S
value entered.
Changing the value in the channel 6 cell as shown below, for instance, immediately changes the output of
channel 6 to 0.996 V. The calculation is performed according to
Equation 3 .
(3)