Datasheet

EMI
Filters
and
Input
MUX
Control
and
SPI Interface
Voltage
Reference
Oscillator
Fault
Detection
Test
Device
Current
Sensing
Line A
Voltage
Sensing
Channel 1
Channel 2
Channel 3
PGA
û
ADC
PGA
û
ADC
PGA
û
ADC
Current
Sensing
Voltage
Sensing
Current
Sensing
Voltage
Sensing
Current
Sensing
Voltage
Sensing
PGA
û
ADC
PGA
û
ADC
PGA
û
ADC
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
PGA
û
ADC
PGA
û
ADC
Line B
Line C
Line N
Op
Amp
ADS131E04
ADS131E06
ADS131E08
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SBAS561A JUNE 2012REVISED APRIL 2013
Analog Front-End for Power Monitoring, Control, and Protection
Check for Samples: ADS131E04, ADS131E06 , ADS131E08
The ADS131E0x incorporate features commonly
1
FEATURES
required in industrial power monitoring, control, and
23
Eight Differential Current and Voltage Inputs
protection applications. The ADS131E0x inputs can
Outstanding Performance:
be independently and directly interfaced with a
resistor-divider network or a transformer to measure
Exceeds Class 0.1 Performance
voltage. The inputs can also be interfaced to a
Dynamic Range at 1 kSPS: 118 dB
current transformer or Rogowski coil to measure
Crosstalk: –110 dB
current. With high integration levels and exceptional
performance, the ADS131E0x family enables the
THD: –90 dB at 50 Hz and 60 Hz
creation of scalable industrial power systems at
Supply Range:
significantly reduced size, power, and low overall
Analog:
cost.
+3 V to +5 V (Unipolar)
The ADS131E0x have a flexible input multiplexer per
±2.5 V (Bipolar, allows dc coupling)
channel that can be independently connected to the
internally-generated signals for test, temperature, and
Digital: +1.8 V to +3.6 V
fault detection. Fault detection can be implemented
Low Power: 2 mW per Channel
internal to the device, using the integrated
Data Rates: 1, 2, 4, 8, 16, 32, and 64 kSPS
comparators with digital-to-analog converter (DAC)-
controlled trigger levels. The ADS131E0x can operate
Programmable Gains (1, 2, 4, 8, and 12)
at data rates as high as 64 kSPS.
Fault Detection and Device Testing Capability
These complete analog front-end (AFE) solutions are
SPI™ Data Interface and Four GPIOs
packaged in a TQFP-64 package and are specified
Package: TQFP-64 (PAG)
over the industrial temperature range of –40°C to
Operating Temperature Range:
+105°C.
–40°C to +105°C
APPLICATIONS
Industrial Power Applications:
Energy Metering
Monitoring, Control, and Protection
DESCRIPTION
The ADS131E0x are a family of multichannel,
simultaneous sampling, 24- and 16-bit, delta-sigma
(ΔΣ), analog-to-digital converters (ADCs) with a built-
in programmable gain amplifier (PGA), internal
reference, and an onboard oscillator.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2SPI is a trademark of Motorola.
3All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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