ADE7758ARWZ Model Information

Overview

The ADE7758ARWZ is a high-precision, poly-phase multifunction energy metering IC designed for accurate measurement of active, reactive, and apparent energy in various three-phase electrical systems. It is suitable for applications requiring high accuracy and compliance with international standards such as IEC 60687, IEC 61036, IEC 61268, IEC 62053-21, IEC 62053-22, and IEC 62053-23.

Key Features

• High Accuracy: Less than 0.1% active energy error over a dynamic range of 1000 to 1 at 25°C.
• Compatibility: Suitable for 3-phase/3-wire, 3-phase/4-wire, and other 3-phase services.
• Measurement Capabilities: Provides active/reactive/apparent energy, voltage rms, current rms, and sampled waveform data.
• Pulse Outputs: Two pulse outputs, one for active power and the other selectable between reactive and apparent power with programmable frequency.
• Calibration Features: Digital power, phase, and rms offset calibration.
• Interface: SPI-compatible serial interface with IRQ.
• Supply Voltage: Single 5 V supply with low power consumption (70 mW typical).
• Reference Voltage: On-chip 2.4 V reference with a temperature coefficient of 30 ppm/°C.

Specifications

• Accuracy:Active Energy Measurement Error: 0.1% typ over a dynamic range of 1000 to 1.Phase Error: ±0.05° max for line frequency between 45 Hz to 65 Hz.
• Power Supply Rejection:AC Power Supply Rejection: 0.01% typ for output frequency variation with ±250 mV rms variation.DC Power Supply Rejection: 0.01% typ for output frequency variation with ±250 mV dc variation.
• Measurement Bandwidth:Active Energy: 14 kHzIRMS: 14 kHzVRMS: 260 Hz
• Analog Inputs:Maximum Signal Levels: ±500 mV differential input.Input Impedance (DC): 380 kΩ min.ADC Offset Error: ±30 mV max (uncalibrated).
• Waveform Sampling:Sampling Rate: CLKIN/128 (10 MHz/128 = 78.1 kSPS).Signal-to-Noise Plus Distortion: 62 dB typ.
• Reference Input:REFIN/OUT Input Voltage Range: 2.2 V to 2.6 V.Input Capacitance: 10 pF max.
• On-Chip Reference:Nominal Voltage: 2.4 V.Reference Error: ±200 mV max.Temperature Coefficient: 30 ppm/°C typ.
• Clock Input:Input Clock Frequency: 5 MHz to 15 MHz.
• Logic Inputs/Outputs:Input High Voltage: 2.4 V min.Input Low Voltage: 0.8 V max.Output High Voltage: 4 V min.Output Low Voltage: 0.4 V max.

Ordering Information

• Model: ADE7758ARWZ
• Temperature Range: -40°C to +85°C
• Package Type: 24-Lead Wide Body SOIC_W (RW-24)
• Compliance: RoHS Compliant

Applications

The ADE7758ARWZ is ideal for use in energy meters, power monitoring systems, and other applications requiring precise measurement of electrical energy in three-phase systems. Its high accuracy and extensive calibration features make it suitable for a wide range of industrial and commercial applications.

Additional Information

• Evaluation Board: EVAL-ADE7758ZEB is available for evaluation and development purposes.
• Documentation: Detailed datasheet and application notes are provided for comprehensive understanding and implementation.