ADS131E08 24-bit 64-kSPS 8-channel simultaneous-sampling delta-sigma ADC for power monitoring and protection | TI.com

ADS131E08 (ACTIVE)

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

 

Special note

See how the ADS131E08 and other TI products combine to create a unique Smart Metering solution

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.

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

WEBENCH® Designer ADS131E08



Parametrics

Compare all products in Precision ADCs (<=10MSPS) Email Download to Excel
Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) SNR (dB) THD (Typ) (dB) Rating
ADS131E08 Order now 24     64     8     SPI     -40 to 105     TQFP | 64     7.15 | 1ku     6     64TQFP: 144 mm2: 12 x 12 (TQFP | 64)     Delta-Sigma     Differential
Pseudo-Differential    
Simultaneous Sampling     Ext
Int    
Daisy-Chainable
GPIO
Oscillator
PGA    
4     0     2.7     5.25     1.8     3.6     107     -93     Catalog    
ADS131A02 Order now 24     128     2     SPI     -40 to 125     TQFP | 32     3.15 | 1ku     1.2     32TQFP: 49 mm2: 7 x 7 (TQFP | 32)     Delta-Sigma     Differential
Single-Ended    
Simultaneous Sampling     Ext
Int    
Daisy-Chainable     4.5     -1.5     3     5.5     1.65     3.6     115.2     -100     Catalog    
ADS131A04 Order now 24     128     4     SPI     -40 to 125     TQFP | 32     4.15 | 1ku     1.2     32TQFP: 49 mm2: 7 x 7 (TQFP | 32)     Delta-Sigma     Differential
Single-Ended    
Simultaneous Sampling     Ext
Int    
Daisy-Chainable     4.5     -1.5     3     5.5     1.65     3.6     115.2     -100     Catalog    
ADS131E08S Order now 24     64     8     SPI     -40 to 105     TQFP | 64     7.15 | 1ku     2     64TQFP: 144 mm2: 12 x 12 (TQFP | 64)     Delta-Sigma     Differential
Pseudo-Differential    
Simultaneous Sampling     Int     Daisy-Chainable
GPIO
Oscillator
PGA