It is comprised of a high resolution Mixed-signal Front-End and of a dense Power and energy Computation Engine to achieve at the system-level a class accuracy as high as 0.1% (class accuracy of the product is 0.05%) over a range up to 1/10,000.

Key Benefits

  • Embedded Computation Engine for utility billing applications
  • Low noise Programmable Gain Amplifier (PGA), to reach the best class accuracy with each type of sensors
  • Embedded power management for the best resilience to power supply noise


  • Energy Metering

Key Performances

  • Capability to satisfy up to Class 0.1 system performances over a range up to 1:10,000
  • Active energy: 0.05% over a range of 5,000 (CT 1,000:1) and 0.07 % over a range of 5,000 (shunt 375 µohm)
  • Total power consumption as low as 14 mW @3.3 V/1.1 V
  • On chip low drift reference voltage (25 ppm/°C)
  • Support of Rogowski coil
  • Programmable output sampling rate: 4 kSps, 8 kSps, 16 kSps or 32 kSps