With the introduction of the CS5461A and CS5463 power meter integrated circuits (ICs) from Cirrus Logic, digital power meter manufacturers are afforded a simple upgrade path for power measurement applications. Pin-to-pin compatible with Cirrus Logic's CS5460A, these ICs provide additional features such as apparent and reactive power, allowing for reduced development time, bill-of-materials for next-generation meters.
Supporting all on-chip calculations performed by the CS5460A, the CS5461A also provides apparent energy calculation, and the CS5463 expands the feature set by offering reactive energy, power factor, fundamental and harmonic energy, line frequency and more. These ICs maintain the superior performance of the CS5460A, offering energy data linearity to within 0.1 percent of reading over a 1000:1 dynamic range. Each IC also provides an on-chip temperature sensor which allows designers to compensate for temperature drift error and increase system accuracy. These ICs also feature a bi-directional serial interface for microcontroller communication, which is initialized and fully functional upon reset.
The CS5461A and CS5463 strengthens Cirrus Logic's portfolio of power measurement ICs, which also include the CS5451A, CS5460A, CS5462 and CS5466.
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