Texas Instruments ADS126 EVM-PDK Series, User Manual, Page: 5 / 38

ADS126x
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ADS126xEVM Hardware
2 ADS126xEVM Hardware
This section provides details about the ADS126xEVM hardware.
2.1 Default Jumper and Switch Configuration
The ADS126xEVM is factory configured with the jumper and switch settings shown in Figure 3 and listed
in Table 1 . The ADS126xEVM operates with these default settings using a single supply and external
crystal oscillator.
Figure 3. Default Jumper and Switch Settings
Table 1. Factory Default Settings
Name Default Setting Function
JP1 Shorted Shorts IN4 to IN6 (for two-wire ratiometric measurements)
JP2 Shorted Used in conjunction with S1 for selecting or inputting the master clock
Connects IN5 to AVSS to setup a current-controlled reference voltage across
JP3 Shorted
R17
JP4 1-2, 3-4, and 5-6 shorted Power supply connections to the ADS126x
JP5 Shorted Connects the thermocouple input J4.1 to AINCOM for biasing
S1 1-2 (right) Used in conjunction with JP2 to select master clock source
Selects unipolar or bipolar supplies for the ADS126x (the bipolar option
S2 2-3 and 5-6 (left)
requires an additional bench supply)
NOTE:
• Shorted jumpers on JP4 are required to connect the ADS126x to AVDD, AVSS,
and DVDD power supplies. These jumpers can be removed for measuring
current, or for connecting an external power supply.
• The JP2, JP3, and JP5 jumpers are not required. Theses jumpers modify the
analog input connections for biasing and ratiometric measurements. See
Section 2.6 for more details.
5 SBAU206 – April 2015 ADS126xEVM-PDK
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