Analog front ends claim industry's lowest-power, highest-precision for smart e-metering
July 19, 2012 // Paul Buckley
Texas Instruments Incorporated has introduced a new line of analog front ends (AFEs) for power monitoring and control of smart e-meters. The new ADS131E08 family is available with 8, 6 or 4 channels and in 16- or 24-bit resolution.
The devices offer high integration and performance, along with the industry’s lowest power consumption per channel and widest upgrade/downgrade path.
When combined with the AMC1100 isolation amplifier, quad-channel ISO7241C digital isolator and 32-bit C2000 TMS320F2812 high-performance microcontroller (MCU), the new ADS131E08 family provides a three-phase class 1.0 and 0.5 smart e-metering solution that minimizes power consumption while providing high linearity for accurate power measurement. The solution also delivers the high-voltage isolation required to meet industry standards for power and communications in high-end industrial meters and Smart Grid infrastructure. A free sample kit of the smart metering solution is available now.
The ADS131E08 e-metering AFE family features the highest all-around precision performance enabled by the best combination of AC/DC specifications: best-in-class signal-to-noise ratio of 107 dB, ENOB of up to 20.4 bits, input signal range of +/-2.4 V and common mode rejection ratio of -110 dB. The high level of performance allows the AFEs to exceed 0.1 e-metering performance with less than 0.1 percent error for 1 to 1,000 dynamic range.
The device offers the lowest power consumption available at 2 mW per channel with an operating temperature range of -40 to 105°C.
The family offers the widest upgrade/downgrade path, with options ranging from 4 to 8 channels and 16 to 24 bits of resolution, to support a variety of smart e-metering applications, from two-phase systems to three-phase with tamper detection.
The device reduces board space and overall solution size by integrating a delta-sigma analog-to-digital converter (ADC), FET-input programmable gain amplifier (PGA) with multi-gain options, operational amplifier (op amp), internal reference, fault detection and alarm comparators.
The ADS131E08EVM-PDK demonstration kit is available to speed hardware evaluation and system development, along with an IBIS model. The kit can be ordered for $199.
Availability and Pricing
All devices in the ADS131E08 family are available in a 9-mm x 9-mm TQFP package. Suggested retail pricing for 1,000-unit quantities is as follows:
8-channel, 24-bit ADS131E08: $5.95
6-channel, 24-bit ADS131E06: $4.95
4-channel, 24-bit ADS131E04: $3.95
8-channel, 16-bit ADS130E08: $3.95
More information about the ADS131E08 e-metering AFE family at
Single crystal perovskites promise cheaper solar cells and LEDs
January 30, 2015
Large perovskite crystals grown by an international research team have been used to identify how electrons move through the ...
Wafer-scale perovskite solar cells on the horizon
Spread Spectrum Frequency Modulation Reduces Automotive LED Driver EMI
Privately-owned car not on the red list, study says
Private equity buys Canadian MEMS foundry
Tronics launches IPO
January 29, 2015
As expected, Tronics Microsystems AS (Grenoble, France) has launched an initial public offering of shares in the company. ...
Samsung shows Europe its technology shopping list
Fuel cells in trucks: silent power instead of idling motors
Can Kevlar prevent lithium-ion battery fire risks?
- Sensing Elements for Current Measurements
- Investigating Die attach Failure in IGBTs using Power Cycling Tests
- Power Semiconductor Failure Diagnosis using Thermal Characterization and Power Cycling
- Top 5 Trends in Product Development and Test Engineering
InterviewCEO interview: Bosch's IoT startup is all about the system
Thorsten Mueller, CEO of Bosch Connected Devices and Solutions GmbH (Reutlingen, Germany), has been guiding the latest startup subsidiary of Robert Bosch GmbH since 2013 when he started the initiative ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
To ensure you have a good start in 2015, Freescale is giving away five of its QorIQ TWR-LS1021A Tower system modules, worth USD269 each, for EETimes Europe's readers to win.
The module is the most feature-rich and high-performance Tower system offered by Freescale, enabling compatibility and interoperability with the growing list of Tower expansion modules, offering an easily accessible...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.