Utility Companies To Obtain More Accurate Readings Of Total Energy Usage With Metering ICs From Analog Devices

ADI's next-generation metering chips now measure "reactive" energy for more precise readings of energy usage.

November 11, 2003- Analog Devices' new energy metering ICs—the ADE7753 and ADE7758 now allow utility companies to obtain more accurate energy usage information than ever before. Reactive energy, caused by nonlinear loads, requires energy suppliers to supply more volt-amps to customers than they can measure with a conventional watt-hour (active energy) meter.

Like all of Analog Devices' energy ICs, the ADE7753 and ADE7758 are based on ADI's industry leading, high-resolution analog-to-digital converter (ADC) technologies combined with a fixed-function DSP. The DSP performs all the necessary energy measurement calculations, allowing a low-cost microprocessor to be used for data management and supervisory functions. This architecture simplifies meter designs that previously relied on microprocessors to perform complex computations. The reduction in extensive code development significantly reduces cost and time-to-market.

Pricing and Availability
The ADE7753 is available in a 20-lead SSOP package and is priced at $2.52 per unit in 1,000-piece quantities. Available in a 24-lead SOIC package, the ADE7758 is priced at $6.88 per unit in 1,000-piece quantities. Evaluation and software kits are available to facilitate performance and functionality verification. Both devices are available in production volume quantities.