Metering chips feature isolated sensing technology

Irvine, Calif.—Teridian Semiconductor has begun sampling its fourth generation residential smart metering integrated circuits (ICs).

The new product family includes the 71M6541x and 71M6xx1 and features digitally isolated current sensors based on the company's proprietary MicroDAA isolation technology. The 71M6541x, as a stand-alone meter system-on-chip (SoC) for single element meters, offers reduced power consumption and enhanced accuracy. The 71M6xx1 isolated sensor IC eliminates current transformer and associated copper wiring in 2-element residential meters, with up to class 0.2 accuracy (ANSI 200A). The result is up to 25 percent reduction in bill of materials (BOM) costs for residential applications, according to the company.

The 71M6541x is offered in 64-pin LQFP packages with 32KB or 64KB Flash options and prices starting at $2.00 at 10,000 quantities. The 71M6xx1 isolated sensors are offered in 8-pin SOIC packages with prices starting at $1.50 for 10,000 quantities, which varies depending on current and accuracy range.

Teridian Semiconductor,

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