Overview
The ADE7932ARIZ-RL is an isolated energy metering chipset designed by Analog Devices Inc. for polyphase shunt meters. This device is part of the ADE7932 family, which features isolated, 3-channel sigma-delta analogue-to-digital converters (Σ-Δ ADCs). It is highly accurate and supports various international standards such as EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, IEC 62053-23, ANSI C12.20, and IEEE 1459. The ADE7932 is particularly suited for applications requiring precise energy measurements in polyphase systems.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Number of ADCs | 2 | - | - |
| ADC Type | Sigma-Delta (Σ-Δ) | - | - |
| Sampling Rate | 8 kSPS | - | - |
| Supply Voltage | 3.3 V | V | - |
| Operating Temperature Range | -40°C to 85°C | °C | - |
| Package Type | 20-Lead SOIC | - | - |
| Error in Active and Reactive Energy | < 0.2% | % | Dynamic range of 2000 to 1 at TA = 25°C |
| Error in Voltage RMS | < 0.1% | % | Dynamic range of 500 to 1 at TA = 25°C |
| Error in Current RMS | < 0.25% | % | Dynamic range of 500 to 1 at TA = 25°C |
| Serial Interfaces | I2C, SPI, HSDC | - | - |
Key Features
- Isolated energy metering chipset for polyphase shunt meters.
- Features two sigma-delta analogue-to-digital converters (Σ-Δ ADCs) for current and voltage measurements.
- High accuracy with less than 0.2% error in active and reactive energy over a dynamic range of 2000 to 1 at TA = 25°C.
- Supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, IEC 62053-23, ANSI C12.20, and IEEE 1459 standards.
- Compatible with 3-phase, 3- or 4-wire (delta or wye) meters and other 3-phase services.
- Enables shunt current sensors in polyphase energy meters and is immune to magnetic tampering.
- Power quality measurements including total harmonic distortion (THD).
- Single 3.3 V supply and operating temperature range from -40°C to 85°C.
- Includes isoPower®, an integrated, isolated dc-to-dc converter for isolation.
Applications
- Shunt-based polyphase meters.
- Power quality monitoring.
- Solar inverters.
- Process monitoring.
- Protective devices.
- Isolated sensor interfaces.
- Industrial PLCs.
Q & A
- What is the ADE7932ARIZ-RL used for?
The ADE7932ARIZ-RL is used for isolated energy metering in polyphase shunt meters, providing accurate measurements of current and voltage in 3-phase systems.
- How many ADCs does the ADE7932ARIZ-RL feature?
The ADE7932ARIZ-RL features two sigma-delta analogue-to-digital converters (Σ-Δ ADCs).
- What is the sampling rate of the ADE7932ARIZ-RL?
The sampling rate of the ADE7932ARIZ-RL is 8 kSPS.
- What are the supported serial interfaces?
The ADE7932ARIZ-RL supports I2C, SPI, and HSDC serial interfaces.
- What is the operating temperature range of the ADE7932ARIZ-RL?
The operating temperature range is from -40°C to 85°C.
- Is the ADE7932ARIZ-RL immune to magnetic tampering?
Yes, the ADE7932ARIZ-RL is immune to magnetic tampering.
- What standards does the ADE7932ARIZ-RL support?
The ADE7932ARIZ-RL supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, IEC 62053-23, ANSI C12.20, and IEEE 1459 standards.
- What is the typical error in active and reactive energy measurements?
The typical error in active and reactive energy measurements is less than 0.2% over a dynamic range of 2000 to 1 at TA = 25°C.
- Does the ADE7932ARIZ-RL include an integrated dc-to-dc converter?
Yes, the ADE7932ARIZ-RL includes isoPower®, an integrated, isolated dc-to-dc converter for isolation.
- What are some common applications of the ADE7932ARIZ-RL?
Common applications include shunt-based polyphase meters, power quality monitoring, solar inverters, process monitoring, protective devices, isolated sensor interfaces, and industrial PLCs.
