BOOSTXL-ADS1119 Hardware Overview
9
SBAU322 – August 2018
Copyright © 2018, Texas Instruments Incorporated
BOOSTXL-ADS1119 BoosterPack™ User's Guide
3.5
Power Supply
Both the LaunchPad™ 3.3-V and 5-V supplies are used for the BOOSTXL-ADS1119. The digital supply is
3.3 V and supplies the ADS1119 DVDD supply input. AVDD is the ADS1119 analog supply and can
accommodate either 3.3-V or 5-V operation. The choice of analog supply voltage is selected by jumper
JP2.
shows that JP2:1-2 selects the 5-V supply source and JP2:2-3 selects the 3.3-V source.
Figure 6. Analog Supply Jumper
The 3.3-V source comes directly from the LaunchPad™ and when available on the BOOSTXL-ADS1119
the D2 LED lights up indicating that the supply is active. The LaunchPad™ 5-V source is often less than
5 V. To achieve a stable voltage when operating at a 5-V AVDD, U3 is used to charge pump the
LaunchPad™ 5-V source and regulate for a fixed 5-V output. U3 can be disabled by installing jumper JP1,
but by default this jumper is not installed. When U3 is active, LED D1 lights up indicating the supply is
available. TP1 can be used to monitor the AVDD supply voltage.
shows jumper placement and
LED locations.
4
Setup Details
Getting the BOOSTXL-ADS1119 and MSP-EXP432E401Y LaunchPad™ combination to communicate
with the PC requires firmware to be installed in the LaunchPad™; see
. This firmware is made
available as part of the ADS1119 BoosterPack™ GUI software installation. Depending on which operating
system is used, driver installation may be needed. The drivers are also included as a part of the GUI
software installation.
4.1
ADS1119 BoosterPack™ GUI Installation
Download and install the GUI from the
tools folder. The license agreements must be
accepted or the software will not install. Follow all remaining on-screen instructions to complete the
installation.
A cloud version of the GUI is also available from
in the software gallery.