Microchip 16 bit Energy Meter IC 28-Pin SSOP, ATM90E26-YU-B

The Microchip ATM90E26 high-performance energy metering device is suitable for single-phase two-wire, single-phase three-wire or anti-tampering active and reactive energy meters. It operates on 3V to 3.6V voltage range. It also can be used in power instruments which need to measure voltage, current.

Accuracy of 0.1% for active energy and 0.2% for reactive energy over a dynamic range of 5000:1
Temperature coefficient is 15 ppm/ ℃ (typical) for on-chip reference voltage
Single-point calibration for active energy

Energy/Power Measurement - Microchip