ADS1258EVM-PDK datasheet(10/39 Pages) TI

10 / 39 page

EVM Operation

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7.4

Default Jumper Settings and Switch Positions

Figure 3 shows the jumpers found on the EVM and the factory default conditions for each one.

Figure 3. ADS1258EVM Default Jumper Locations

The jumpers on J4 provide a convenient way to measure the current for any of the power-supply currents:

AVDD (analog +V power), DVDD (digital power), AVSS (analog

–V power), or the ground connections

VGND and DGND. Simply remove the jumper for the appropriate power supply and use a current meter

between the jumper pins. The supply voltage for the digital supply (DVDD) can also be selected to be

either 1.8V or 3.3V; see Table 6.

Table 8 provides a list of switches found on the EVM and the factory default conditions for each one.

Table 8. List of Switches

SWITCH

DEFAULT POSITION

SWITCH DESCRIPTION

S1

Left

REF positive

S2

Left

REF negative

10

ADS1158EVM, ADS1258EVM, ADS1158EVM-PDK, and ADS1258EVM-PDK

SBAU126C

– May 2007 – Revised May 2011

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