ADS131E08 Analog Front-Ends

Texas Instruments' ADS131E08 are multi-channel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an on-board oscillator.

The ADS131E08 incorporate features commonly required in industrial power monitoring, control, and protection applications. The ADS131E08 inputs can be independently and directly interfaced with a resistor-divider network or a transformer to measure voltage. The inputs can also be interfaced to a current transformer or Rogowski coil to measure current. With high integration levels and exceptional performance, the ADS131E08 enables the creation of scalable industrial power systems at significantly reduced size, power, and low overall cost.

The ADS131E08 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 internally to the device, using the integrated comparators with digital-to-analog converter (DAC)-controlled trigger levels. The ADS131E08 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.