Features
• Active power accuracy:
– < 0.1% error over 5000 : 1 dynamic range
– < 0.5% error over 10000 : 1 dynamic range
• Exceeds 50-60 Hz EN 50470-x, IEC 62053-2x,
ANSI12.2x standard requirements for AC watt meters
• Reactive power accuracy:
– < 0.1% error over 2000 : 1 dynamic range
• Dual mode apparent energy calculation
• Instantaneous and averaged power
• RMS and instantaneous voltage and current
• Under and overvoltage detection (sag and swell) and monitoring
• Overcurrent detection and monitoring
• UART and SPI serial interface with programmable CRC polynomial verification
• Programmable LED and interrupt outputs
• Four independent 24-bit 2nd order sigma-delta ADCs
• Two programmable gain chopper stabilized low-noise and low-offset amplifiers
• Bandwidth 3.6 kHz at -3 dB
• Vcc supply range 3.3 V ± 10%
• Supply current Icc 4.3 mA (STPM32)
• Input clock frequency 16 MHz, Xtal or external source
• Twin precision voltage reference: 1.18 V with independent programmable TC,
30 ppm/°C typ.
• Internal low drop regulator at 3 V (typ.)
• QFN packages
• Operating temperature from -40 °C to +105 °C