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Design challenges
Any application where power efficiency needs to be managed, such as those systems where battery life is important, can benefit from accurate power measurement. Higher accuracy allows for a more optimized system so a longer battery life is possible. Any device used in these types of applications needs to monitor as many power rails as possible, therefore high integration and a small size are also important. The device itself also needs to be as low power as possible to minimize its impact on battery life. Lastly, all of these requirements need to be met without increasing the system cost. A wide dynamic range helps the cost by allowing use of smaller and lower cost sense resistors.
PTM Published on: 2018-09-17