Energy-measurement analog front-end has two 24-bit ADCs

MICROCHIP TECHNOLOGY MCP3911 next-generation energy-measurement analog front end (AFE) provides two 24-bit, delta-sigma ADCs that operate at 3V with industry-leading accuracy of 94.5 dB SINAD and 106.5 dB THD. This provides better energy-meter and power-monitoring performance by accurately measuring from start-up to maximum current, and enables faster calibration during production. Four different power modes provide the flexibility of enabling either extremely low-power designs, to 0.8mA per channel, or designs for higher-speed signals and harmonic content. The extended temperature range allows operation from -40C to +125C.

http://www.microchip.com/get/LV02