Datasheet

V =
DAC_CHANNEL
V x Code_in_decimal
1024
S
BUF12800EVM Software Overview www.ti.com
When JMP6 and the software are set as shown in Figure 17, the second I
2
C address can be configured.
Figure 17. 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 18.
Figure 18. 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)
18
BUF12800EVM Evaluation Board and Software Tutorial SBOU116–September 2011
Submit Documentation Feedback
Copyright © 2011, Texas Instruments Incorporated