Jumpers
2-7
Circuit Description
2.2
Jumpers
The jumpers are shown in Figure 2−5. Jumper positions and functions are
shown in Figure 2−1.
Figure 2−5. Jumpers
2.2.1
J2: Analog−Digital Ground Shorting Jumper
This jumper is used to connect the analog and digital grounds together.
If you are using a single power supply, you should usually place a shorting
block across this jumper. If you are using two different supplies, each with
its own ground, you should usually leave this jumper unconnected.
2.2.2
J3: ADS1244/45 Analog Supply Current Measurement Jumper
This jumper can be used to measure the current drawn by the ADS1244/45
analog supply line.
For normal operation, when not measuring current, place a shorting block
across this jumper.