TI's ADS131E08 offers Low-Power, High-Precision Smart E-Metering Solution

19th July 2012
Posted By : Nat Bowers
TI's ADS131E08 offers Low-Power, High-Precision Smart E-Metering Solution

TI have announced today a new family of analogue front ends 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, 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 today.

Key features and benefits of the ADS131E08 e-metering AFE family:

•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. This 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.
•Lowest power consumption available at 2 mW per channel with an operating temperature range of -40 to 105 C.

•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.

•Lowest price per channel by 40 percent at $0.74.

•Reduces board space and overall solution size by integrating a delta-sigma analog-to-digital converter, FET-input programmable gain amplifier with multi-gain options, operational amplifier, 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. It can be ordered today for US$199.

All devices in the ADS131E08 family are available today 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: US$5.95
•6-channel, 24-bit ADS131E06: US$4.95
•4-channel, 24-bit ADS131E04: US$3.95
•8-channel, 16-bit ADS130E08: US$3.95


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Developing secure and scalable IoT solutions
21st June 2018
United Kingdom Cocoon Networks, London
The Security Event 2019
9th April 2019
United Kingdom NEC, Birmingham