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 high-impedance 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.