ADI's ADE7953 is a high-accuracy, electrical energy measurement IC intended for single-phase applications. It measures line voltage and current and calculates active, reactive, apparent energy, and instantaneous VRMS and current.
The device incorporates three sigma delta ADCs with a high-accuracy energy measurement core. The third 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 (CT’s) and low-value shunt resistors. Two on-chip integrators facilitate the use of Rogowski coil sensors.
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- Measures active, reactive, and apparent energy
- Sampled waveform
- Current and VRMS
- Less than 0.1% error in active and reactive energy measurement over a dynamic range of 3000:1
- Less than 0.2% error in instantaneous IRMS and VRMS measurements over a dynamic range of 500:1
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- Provides apparent energy measurement and instantaneous power readings
- 1.5 kHz bandwidth operation
- Flexible PGA gain stage (up to 22 times)
- Includes internal integrator for use with Rogowski coil
- SPI, I2C, or UART communication
- Provides a second current input for neutral-current measurement
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ADI's ADE7953 is a high-accuracy, electrical energy measurement IC intended for single-phase applications. It measures line voltage and current and calculates active, reactive, apparent energy, and instantaneous VRMS and current.
Singapore