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.
The ADS131E0x incorporate features commonly required in industrial power monitoring, control, and protection applications. The ADS131E0x 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 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℃ to +105℃
Eight Differential Current and Voltage Inputs
Exceeds Class 0.1 Performance
Dynamic Range at 1 kSPS: 118 dB
Crosstalk: –110 dB
THD: –90 dB at 50 Hz and 60 Hz
Analog:+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℃ to +105℃
Industrial Power Applications:
This user’s guide describes the characteristics, operation, and use of the ADS131E08EVM-PDK. This performance demonstration kit is an evaluation module for the ADS131E08, an eight-channel, 24-bit, lowpower, integrated analog front-end (AFE) designed for power protection circuits. The ADS131E08EVMPDK is intended for prototyping and evaluation. This user’s guide includes a complete circuit description,schematic diagram, and bill of materials.
The ADS131E08EVM-PDK is a demonstration kit for the ADS131E08, a simultaneous sampling, 24-bit, delta-sigma (Δ Σ) analog-to-digital converter (ADC) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. The ADS131E08 contains the features commonly required for industrial power monitoring and control but has the flexibility to fit a variety of applications which require an eight channel, 24-bit ADC. The ADS131E08EVM-PDK demonstration kit is designed to expedite evaluation and system development.
Easy-to-use evaluation software for Microsoft™ Windows XP or Windows 7
Built-in analysis tools including oscilloscope, FFT, and histogram displays
Flexible input configurations
Optional external reference circuits