1 Features

1• Eight Differential ADC Inputs

• Outstanding Performance:

– Dynamic Range: 118 dB at 1 kSPS

– Crosstalk: –110 dB

– THD: –90 dB at 50 Hz and 60 Hz

• Analog Supply Range Options:

– 3 V to 5 V (Unipolar)

– ±2.5 V (Bipolar, Allows DC-Coupling)

• Digital: 1.8 V to 3.6 V

• Low Power: 2 mW per Channel

• Data Rates: 1, 2, 4, 8, 16, 32, and 64 kSPS

• Programmable Gains: 1, 2, 4, 8, and 12

• Fault Detection and Device Testing Capability

• SPI™ Data Interface and Four GPIOs

• Package: TQFP-64 (PAG)

• Operating Temperature Range:

–40°C to +105°C

2 Applications

• Power Protection: Circuit Breakers, and Relay

Protection

• Energy Metering: Single Phase, Polyphase, and

Power Quality

• Battery Test Systems

• Test and Measurement

• Simultaneous Sampling Data Acquisition Systems

3 Description

The ADS131E0x are a family of multichannel,

simultaneous sampling, 24-bit, delta-sigma (ΔΣ),

analog-to-digital converters (ADCs) with a built-in

programmable gain amplifier (PGA), internal

reference, and an onboard oscillator. The ADC wide

dynamic range, scalable data rates, and internal fault

detect monitors make the ADS131E0x attractive in

industrial power monitoring and protection as well as

test and measurement applications. True highimpedance

inputs enable the ADS131E0x to directly

interface with a resistor-divider network or a voltage

transformer to measure line voltage, or a current

transformer or Rogowski coil to measure line current.

With high integration levels and exceptional

performance, the ADS131E0x family enables the

creation of scalable industrial power systems at

significantly reduced size, power, and low overall

cost.

The ADS131E0x have a flexible input multiplexer per

channel that can be independently connected to the

internally-generated signals for test, temperature, and

fault detection. Fault detection can be implemented

internal to the device, using the integrated

comparators with digital-to-analog converter (DAC)-

controlled trigger levels. The ADS131E0x can operate

at data rates as high as 64 kSPS.

These complete analog front-end (AFE) solutions are

packaged in a TQFP-64 package and are specified

over the industrial temperature range of –40°C to

+105°C.