ADS131E08 24-Bit, 64kSPS, 8-Ch (Simultaneous) Delta-Sigma ADC for Power Monitoring, Control and Protection | TI.com

ADS131E08 (ACTIVE)

24-Bit, 64kSPS, 8-Ch (Simultaneous) Delta-Sigma ADC for Power Monitoring, Control and Protection

24-Bit, 64kSPS, 8-Ch (Simultaneous) Delta-Sigma ADC for Power Monitoring, Control and Protection - ADS131E08
 

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

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Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
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)
INL (Max) (+/-LSB)
SINAD (dB)
SNR (dB)
THD (Typ) (dB)
Rating
Sample Rate (Max) (MSPS)
ADS131E08 ADS131A02 ADS131A04 ADS131E08S
24     24     24     24    
64     128     128     64    
8     2     4     8    
SPI     SPI     SPI     SPI    
-40 to 105     -40 to 125     -40 to 125     -40 to 105    
TQFP | 64     TQFP | 32     TQFP | 32     TQFP | 64    
7.15 | 1ku     3.15 | 1ku     4.15 | 1ku     7.15 | 1ku    
6     1.2     1.2     2    
64TQFP: 144 mm2: 12 x 12 (TQFP | 64)     32TQFP: 49 mm2: 7 x 7 (TQFP | 32)     32TQFP: 49 mm2: 7 x 7 (TQFP | 32)     64TQFP: 144 mm2: 12 x 12 (TQFP | 64)    
Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma    
Differential
Pseudo-Differential    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Pseudo-Differential    
Simultaneous Sampling     Simultaneous Sampling     Simultaneous Sampling     Simultaneous Sampling    
Ext
Int    
Ext
Int    
Ext
Int    
Int    
Daisy-Chainable
GPIO
Oscillator
PGA    
Daisy-Chainable     Daisy-Chainable     Daisy-Chainable
GPIO
Oscillator
PGA    
4     4.5     4.5     4    
0     -1.5     -1.5     0    
2.7     3     3     2.7    
5.25     5.5     5.5     5.25    
1.8     1.65     1.65     1.7    
3.6     3.6     3.6     3.6    
167.8     8     7.5     10    
  101     -101      
107     115.2     115.2     108    
-93     -100     -100     -107    
Catalog     Catalog     Catalog     Catalog    
0.064     0.128     0.128     0.064    

WEBENCH® Designer ADS131E08