Wide supply voltage operation: 2.4 V to 3.7 V Internal bipolar switch between regulated and battery inputs Ultralow power operation with power-saving modes (PSM) Full operation: 4 mA to 1.6 mA (PLL clock dependent) Battery mode: 3.2 mA to 400 μA (PLL clock dependent) Sleep mode Real-time clock (RTC) mode: 1.5 μA RTC and LCD mode: 27 μA (LCD charge pump enabled) Reference: 1.2 V ± 0.1% (10 ppm/°C drift) 64-lead RoHS package options Lead frame chip scale package (LFCSP) Low profile quad flat package (LQFP) Operating temperature range: −40°C to +85°C ENERGY MEASUREMENT FEATURES Proprietary analog-to-digital converters (ADCs) and digital signal processing (DSP) provide high accuracy active (Watt), reactive (VAR), and apparent energy (VA) measurement Less than 0.1% error on active energy over a dynamic range of 1000 to 1 @ 25°C Less than 0.5% error on reactive energy over a dynamic range of 1000 to 1 @ 25°C (ADE7569 and ADE7169 only) Less than 0.5% error on root mean square (rms) measurements over a dynamic range of 500 to 1 for current (Irms) and 100 to 1 for voltage (Vrms) @ 25°C Supports IEC 62053-21, IEC 62053-22, IEC 62053-23, EN 50470-3 Class A, Class B, and Class C, and ANSI C12-16 Differential input with programmable gain amplifiers (PGAs) supports shunts, current transformers, and di/dt current sensors (ADE7569 and ADE7169 only)