Overview
The AD71056ARZ-RL is a precision energy metering IC designed by Analog Devices Inc. for effective single-phase electrical energy measurement. This integrated circuit is notable for its high accuracy, low power consumption, and robust construction, making it suitable for a wide range of applications. The AD71056ARZ-RL eliminates the need for an external crystal or resonator, reducing the overall cost and complexity of the metering system. It features proprietary ADCs and DSP that provide high accuracy over large variations in environmental conditions and time, ensuring superior stability and reliability.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Voltage Supply Range | 4.75 V to 5.25 V | V | For specified performance |
| Current Supply | 5 mA max (typically 4 mA) | mA | VDD = 5 V ± 5% |
| Operating Temperature Range | -40°C to 85°C | °C | |
| Measurement Error | 0.1% | % | |
| Input Impedance | 320 kΩ | kΩ | |
| Voltage - I/O High | 2.4 V | V | |
| Voltage - I/O Low | 0.8 V | V | |
| Frequency Output Error (CF) | ±10% ideal typ | % |
Key Features
- High Accuracy: The AD71056ARZ-RL provides accurate energy measurement with an error of 0.1%, surpassing the accuracy requirements of the IEC62053-21 standard.
- Low Power Consumption: It operates with a low current supply of 5 mA, reducing operational costs and supporting energy-efficient applications.
- Broad Operating Temperature Range: The IC operates effectively in temperatures ranging from -40°C to 85°C, enhancing reliability in diverse environments.
- Integrated Oscillator and Reverse Polarity Indicator: The chip includes a precise oscillator circuit and a reverse polarity indicator, eliminating the need for an external crystal or resonator and indicating potential miswiring or negative power.
- Direct Drive for Electromechanical Counters and Stepper Motors: The IC directly interfaces with shunt resistors and can drive electromechanical counters and 2-phase stepper motors.
- On-Chip Power Supply Monitoring and Creep Protection: The IC includes power supply monitoring and internal no-load threshold to prevent creep when no load is present.
Applications
The AD71056ARZ-RL is predominantly used in residential and commercial energy metering systems. Its compatibility with various power management and metering applications within its specified supply and temperature ranges makes it a versatile choice for different energy measurement needs.
Q & A
- What is the primary function of the AD71056ARZ-RL?
The AD71056ARZ-RL is a precision energy metering IC designed for single-phase electrical energy measurement.
- What is the voltage supply range for the AD71056ARZ-RL?
The voltage supply range is from 4.75 V to 5.25 V.
- What is the typical current consumption of the AD71056ARZ-RL?
The typical current consumption is 4 mA, with a maximum of 5 mA.
- What is the operating temperature range of the AD71056ARZ-RL?
The operating temperature range is from -40°C to 85°C.
- What is the measurement error of the AD71056ARZ-RL?
The measurement error is 0.1%.
- Does the AD71056ARZ-RL require an external crystal or resonator?
No, the AD71056ARZ-RL includes a precise oscillator circuit, eliminating the need for an external crystal or resonator.
- What types of counters and motors can the AD71056ARZ-RL drive directly?
The IC can directly drive electromechanical counters and 2-phase stepper motors.
- What safety features does the AD71056ARZ-RL include?
The IC includes on-chip power supply monitoring and internal no-load threshold to prevent creep when no load is present.
- In what types of systems is the AD71056ARZ-RL typically used?
The AD71056ARZ-RL is typically used in residential and commercial energy metering systems.
- Is the AD71056ARZ-RL currently in production?
Yes, the AD71056ARZ-RL is currently active and in production with no indication of nearing discontinuation.
