ADE7979
Digital, Polyphase, Metrology IC with ADC Bit Stream Interface
Top
Alternative Parts
Overview
Features and Benefits
- Digital, metrology IC, shunt-based polyphase meters
- Use in the mSure® system with the ADE9322B
- High accuracy, supports EN50470-1, EN50470-3, IEC62053-21, IEC62053-22, IEC62053-23, IEC62053-24, ANSIC12.20, and IEEE1459 standards
- Neutral current calculation
- Compatible with 3-phase, 3-wire or 4-wire (delta or wye) meters, and other 3-phase services
- Computes active, reactive, and apparent energy on each phase and for the overall system
- Power quality measurements including THD
- Single 3.3 V supply
- Operating temperature: −40°C to +85°C
- Flexible I2C, SPI, and HSDC serial interfaces
Product Details
The ADE7979 is a high accuracy, 3-phase, digital metrology engine with flexible serial interfaces and three flexible pulse outputs (CF1, CF2, and CF3). The device takes in four sigma-delta (Σ-Δ) analog-to-digital converter (ADC) bit streams and performs all essential energy metering functions including reactive power and rms to create a polyphase energy metering application using shunt current sensors. A complete metrology system requires the ADE7979, up to four ADE9322B Σ-Δ ADC ICs, external isolation, and a power supply of 3.3 V. The power supply required to power the ADE7979 is 3.3 V and must be isolated from the Σ-Δ ADC ICs.
The ADE7979 incorporates all signal processing required to perform total (fundamental and harmonic) active, reactive, and apparent energy measurement and rms calculations, as well as fundamental only active and reactive energy measurement and rms calculations. A fixed function digital signal processor (DSP) executes this signal processing.
The ADE7979 measures the active, reactive, and apparent energy in 3-phase configurations that include delta and wye services that can both be used with either three or four wires. The ADE7979 provides system calibration features for each phase, gain calibration, and optional offset correction. Phase compensation is also available on the device but is not necessary because the currents are sensed using shunts. The CF1, CF2, and CF3 pulse outputs provide a wide selection of power information that includes the sum of the current rms values, fundamental active and reactive powers, and total active, reactive, and apparent powers.
The ADE7979 incorporates power quality measurements that include short duration low or high voltage detection, short duration high current variations, line voltage period measurement, and angles between phase voltages and currents.
Either serial peripheral interface (SPI) or I2C interface can be used to communicate with the ADE7979. The high speed data capture (HSDC) port is a dedicated, high speed interface that can be used in conjunction with the I2C to provide access to the ADC outputs and real-time power information. The ADE7979 also has two interrupt request output pins, IRQ0 and IRQ1, that indicate when an enabled interrupt event occurs. The ADE7979 is available in a pb-free, 28-lead, lead frame chip scale package (LFCSP).
Note that throughout the data sheet, multifunction pins, such as SCLK/SCL, are referred to by the entire pin name or by a single function of the pin, for example, SCLK, when only that function is relevant.
For more information about the ADE7979, contact your local Analog Devices, Inc., Sales Team, email energy.support@analog.com, or visit www.analog.com/mSure.
APPLICATIONS
- Shunt-based, mSure enabled, polyphase meters
- Solar inverters
- Process monitoring
- Smart power distribution units
- Polyphase ac chargers
Product Categories
Comparable Parts Click to see all in Parametric Search
|
Part#
|
Data Output Interface
|
Device Primary Function
|
Special Features
|
Measurements Available
|
MCU Core on chip
|
Active Energy Accuracy
|
|---|---|---|---|---|---|---|
|
CF Pulses, HSDC, I2C, SPI
|
Polyphase Energy Monitoring IC
|
5kV isolation, Meter Chipset w/isoPower and iCoupler technology
|
Apparent Power, Fundamental Active, Fundamental Reactive, Irms, Neutral Measurement, Total Active Power, Total Harmonic Distortion, Total Reactive Power, Vrms
|
No
|
0.2
|
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Documentation & Resources
-
Emerging Solutions for EV Charging8/21/2023
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADE7979ACPZ | Material Declaration | Reliability Data | 28-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) | |
| ADE7979ACPZ-RL | Material Declaration | Reliability Data | 28-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP) | |
| Wafer Fabrication Data |
Support & Discussions
ADE7979 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.