90E22PYGI8 [Microchip]

The 90E21/22/23/24 series are high-performance wide-span energy metering chips. IDT's proprietary ADC and DSP technology ensure long-term stability over grid and ambient variations. They feature high accuracy (0.1% active, 0.2% reactive) over a 5000:1 dynamic range, single-point calibration, programmable metering modes, and support for single-phase two-wire, three-wire, and anti-tampering systems.