Datasheet

ADS131E04
ADS131E06
ADS131E08
SBAS561A –JUNE 2012–REVISED APRIL 2013 www.ti.com
POWER MONITORING SPECIFIC APPLICATIONS
All channels of the ADS131E0x family of devices are exactly identical, yet independently configurable, thus
giving the user the flexibility of selecting any channel for voltage or current monitoring. An overview of this
system is illustrated in Figure 43. Also, the simultaneously sampling capability of the device allows the user to
monitor both the current and the voltage at the same time. The full-scale differential input voltage of each
channel is determined by the PGA gain setting (see the CHnSET: Individual Channel Settings section) for the
respective channel and V
REF
(see the CONFIG3: Configuration Register 3 section). Table 12 summarizes the full-
scale differential input voltage range for an internal V
REF
.
Table 12. Full-Scale Differential Input Voltage Summary
FULL-SCALE DIFFERENTIAL INPUT
V
REF
PGA GAIN VOLTAGE, FSDI (V
PP
) RMS VOLTAGE [= FSDI / (2√2)] (V
RMS
)
1 4.8 1.698
2 2.4 0.849
2.4 V 4 1.2 0.424
8 0.6 0.212
12 0.4 0.141
1 8 2.828
2 4 1.414
4.0 V 4 2 0.707
8 1 0.354
12 0.66 0.236
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