Overview
The ADE7754ARZ, manufactured by Analog Devices Inc., is a high-accuracy polyphase electrical energy measurement IC designed for various power metering applications. This integrated circuit incorporates advanced features such as second-order Σ-Δ ADCs, reference circuitry, a temperature sensor, and comprehensive signal processing capabilities. It is particularly suited for measuring active and apparent energy in 3-phase and 4-wire configurations, making it a versatile component for power meter services.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 24-SOIC (0.295", 7.50mm Width) |
| Max Operating Temperature | 85 °C |
| Min Operating Temperature | -40 °C |
| Max Supply Voltage | 5.25 V |
| Min Supply Voltage | 4.75 V |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Input High Voltage (VINH) | 2.4 V min (DVDD = 5 V ± 5%) |
| Input Low Voltage (VINL) | 0.8 V max (DVDD = 5 V ± 5%) |
| Input Current (IIN) | ±3 μA max, Typical 10 nA (VIN = 0 V to DVDD) |
| Input Capacitance (CIN) | 10 pF max |
| Output High Voltage (VOH) | 4 V min (DVDD = 5 V ± 5%) |
| Output Low Voltage (VOL) | 1 V max (DVDD = 5 V ± 5%) |
| Supply Current (AIDD, DIDD) | 7 mA max, 18 mA max at 5.25 V |
Key Features
- High accuracy polyphase electrical energy measurement
- Second-order Σ-Δ ADCs and reference circuitry
- On-chip temperature sensor and user-programmable thresholds for line voltage SAG and overdrive detections
- SPI compatible serial interface with interrupt request line (IRQ) and pulse output with programmable frequency
- System calibration features including channel offset correction, phase calibration, and gain calibration
- Zero-crossing detection synchronized with the zero-crossing point of the line voltage of each phase
Applications
The ADE7754ARZ is designed for various power metering applications, including:
- 3-phase/4-wire power metering
- 3-phase/3-wire power metering
- 4-wire delta power metering
- Active and apparent energy measurements
- RMS calculation and power factor measurement
Q & A
- What is the ADE7754ARZ used for?
The ADE7754ARZ is used for high-accuracy polyphase electrical energy measurement in various power metering applications. - What type of package does the ADE7754ARZ come in?
The ADE7754ARZ comes in a 24-SOIC package. - What is the operating temperature range of the ADE7754ARZ?
The operating temperature range is from -40 °C to 85 °C. - What is the supply voltage range for the ADE7754ARZ?
The supply voltage range is from 4.75 V to 5.25 V. - Does the ADE7754ARZ have on-chip calibration features?
Yes, it includes system calibration features such as channel offset correction, phase calibration, and gain calibration. - How does the ADE7754ARZ communicate with external devices?
The ADE7754ARZ uses an SPI compatible serial interface with an interrupt request line (IRQ) and a pulse output with programmable frequency. - What types of power metering configurations does the ADE7754ARZ support?
The ADE7754ARZ supports 3-phase/4-wire, 3-phase/3-wire, and 4-wire delta configurations. - Does the ADE7754ARZ have a built-in temperature sensor?
Yes, it includes an on-chip temperature sensor. - Can the ADE7754ARZ detect voltage variations?
Yes, it has detection circuits for short duration low or high voltage variations with user-programmable thresholds. - How is data read from the ADE7754ARZ?
Data is read via the SPI serial interface.
