RENERGY RN8208G

The RN8208G is capable of measuring active power, active energy, RMS voltage, RMS current, and line frequency. It supports fully digital gain, phase, and offset calibration. Active energy pulses are output from the PF pin. SPI/UART interfaces are provided for communication with an external MCU. An internal power supply monitoring circuit ensures reliable operation during power-up and power-down conditions.

• Dual-channel ∑-△ ADC
• Active energy error <0.1% over 8000:1 dynamic range, compliant with IEC62053-22:2003
• Voltage RMS, current RMS, active power, and line frequency measurement
• Adjustable no-load threshold
• Reverse power indication
• Reference voltage monitoring
• Adjustable meter constant (HFConst)
• Gain and phase calibration
• Active power offset calibration
• Small-signal calibration acceleration
• Configuration parameter auto-verification
• SPI/UART interface
• Power supply monitoring
• RN8208G powered by +5V/3.3V, typical power consumption 14mW@5V, 8mW@3.3V
• Built-in 1.25V±1% reference voltage, typical temperature coefficient 5ppm/°C
• SOP24 green package, pin-compatible with RN8209G; no neutral-line ADC input or related measurement functions