Energy Metering IC with Autocalibration Features: mSure autocalibration Automatic calibration based on a direct measurement of the full signal path Calibration procedure not requiring a reference meter mSure autocalibration Class 1 meter guaranteed 3 high performance ADCs 88 dB SNR High gain current channel: ±26.04 mV peak, 18.4 mV rms input at highest gain setting Advanced metrology feature set WATT, VAR, VA, Wh, VARh, and VAh Supports active energy standards: IEC 62053-21; IEC 62053-22; EN50470-3; OIML R46; and ANSI C12.20 Supports reactive energy standards: IEC 62053-23 and IEC 62053-24 Current and voltage rms measurement Power quality measurements Operating temperature, industrial range: −40°C to +85°C