Single Phase, Multifunction Metering IC
with Neutral Current Measurement
ADE7953 Data Sheet The device incorporates three Σ-Δ ADCs with a high accuracy
energy measurement core. The second input channel simultaneously measures neutral current and enables tamper detection
and neutral current billing. The additional channel incorporates
a complete signal path that allows a full range of measurements.
Each input channel supports independent and flexible gain stages,
making the device suitable for use with a variety of current sensors
such as current transformers (CTs) and low value shunt resistors.
Two on-chip integrators facilitate the use of Rogowski coil sensors. FEATURES
Highly accurate; supports EN 50470-1, EN 50470-3, IEC 6205321, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards
Measures active, reactive, and apparent energy; sampled
waveform; current and voltage rms
Provides a second current input for neutral current
measurement
Less than 0.1% error in active and reactive energy
measurements over a dynamic range of 3000:1
Less than 0.2% error in instantaneous IRMS measurement
over a dynamic range of 1000:1
Provides apparent energy measurement and instantaneous
power readings
1.23 kHz bandwidth operation
Flexible PGA gain stage (up to ×22) …