Analog Devices is a pioneer in electronic energy metering through their early introduction of energy metrology components. Increasingly, the use of Automated Meter Reading (AMR) and Advanced Meter Infrastructure (AMI) systems has intensified the requirements for efficient meter communications systems, and once again ADI technology is at the forefront. ADI supports all types of metering systems with a wide range of solutions including metrology, isolation, power management, and communication products.
Source: http://www.analog.com/en/applications/markets/energy/metering-and-energy-monitoring/energy-monitoring.html