ADS131E08

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24-bit 64-kSPS 8-channel simultaneous-sampling delta-sigma ADC for power monitoring and protection

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Product details

Parameters

Resolution (Bits) 24 Number of input channels 8 Sample rate (Max) (kSPS) 64 Interface type SPI Architecture Delta-Sigma Input type Differential, Pseudo-Differential Multi-channel configuration Simultaneous Sampling Rating Catalog Reference mode Ext, Int Input range (Max) (V) 4 Input range (Min) (V) 0 Features Daisy-Chainable, GPIO, Oscillator, PGA Operating temperature range (C) -40 to 105 Power consumption (Typ) (mW) 6 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 107 Analog voltage AVDD (Max) (V) 5.25 Digital supply (Min) (V) 1.8 Digital supply (Max) (V) 3.6 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

TQFP (PAG) 64 144 mm² 12 x 12 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 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
open-in-new Find other Precision ADCs (<=10MSPS)

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 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.

open-in-new Find other Precision ADCs (<=10MSPS)
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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

GUIS FOR EVALUATION MODULES (EVM) Download
document-generic User guide
Description

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 (...)

Features
  • 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
  • Ability to export data in simple test files for post processing

Design tools & simulation

SIMULATION MODELS Download
SBAM160.ZIP (141 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Analog-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and transformer-coupled (...)
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

Reference designs

REFERENCE DESIGNS Download
High Accuracy ±0.5% Current and Isolated Voltage Measurement Ref Design Using 24-Bit Delta-Sigma ADC
TIDA-00835 The TIDA-00835 reference design allows for accurate voltage and current measurement using a bipolar input configuration by incorporating a four- channel, 24-bit simultaneously-sampling differential input Delta-Sigma ADC over wide dynamic range. The ADC is configured to measure ±2.5 V bipolar (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
TQFP (PAG) 64 View options

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