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ADE7913:  3-Channel, Isolated, Sigma Delta ADC with SPI

Product Details

Product Status:Recommended for New Designs

The ADE7912/ADE7913 are isolated, 3-channel Σ-Δ ADCs for a variety of applications such as shunt-based polyphase meters, power quality monitoring, solar inverters, process monitoring and protective devices. Data and power isolation are based on the Analog Devices, Inc., iCoupler® technology. The ADE7912 features two 24-bit ADCs, and the ADE7913 features three ADCs. The current ADC provides a 67 dB signal-to-noise ratio over a 3 kHz signal bandwidth, whereas the voltage ADCs provide a SNR of 72 dB over the same bandwidth. One channel is dedicated to measuring the voltage across a shunt when the shunt is used for current sensing. Up to two additional channels are dedicated to measuring voltages, which are usually sensed using resistor dividers. One voltage channel can be used to measure the temperature of the die via an internal sensor. The ADE7913 includes three channels: one current and two voltage channels. The ADE7912 has one voltage channel but is otherwise identical to the ADE7913

APPLICATIONS
  • Shunt based polyphase meters
  • Power quality monitoring
  • Solar inverters
  • Process monitoring
  • Protective devices
  • Isolated sensor interfaces
  • Industrial PLCs

FEATURES and BENEFITS

  • Three 24-bit Isolated, Σ-Δ analog-to-digital converters (simultaneously sampling ADCs)
  • Integrated isoPower, isolated dc-to-dc converter
  • On-chip temperature sensor
  • 4-wire SPI serial interface
  • Up to four ADE7913 energy metering ICs synchronously clocked from a single crystal or an external clock
  • Synchronization of multiple ADE7912/ADE7913 devices
  • ±31.25 mV peak input range for current channel
  • ±500 mV peak input range for voltage channels
  • Reference drift: 10 ppm/°C typical
  • See data sheet for additional features

Typical Application Circuit Diagram for ADE7913

Samples

Samples are available, please contact your local sales person or distributor to request samples of this pre-released material.
Part number for sample request would be ADE7913XRIZ.

Video: ADE7913: Magnetic Immunity for Polyphase Energy Meter Applications

Documentation

Title Content Type File Type
ADE7912/ADE7913: 3-Channel, Isolated, Sigma-Delta ADC with SPI Data Sheet (Rev 0, 11/2013) (pdf, 942 kB) Data Sheets PDF
AN-1312: Applying the ADE7912/ADE7913 to 4 mA to 20 mA DC Measurements  (pdf, 143 kB) Application Notes PDF
AN-1304: ADE7912/ADE7913 DC Measurement Performance  (pdf, 190 kB) Application Notes PDF
Electric Utilities Can Protect Revenue Through New Advances in Smart Meter Electronics  (pdf, 176 kB) White Papers PDF
ADE7913: Magnetic Immunity for Polyphase Energy Meter Applications
The ADE7913 is a fully isolated ADC that has 3 input channels. It incorporates iCoupler® and isoPower® technologies to implement isolated signal transfer and dc-to-dc power conversion across a 5kV-rated insulation barrier and an SPI output.
Videos HTML
UG-571: Evaluating the ADE7913 Isolated Sigma-Delta ADC  (pdf, 1070 kB) User Guides PDF
MS-2404: Trends in Three-Phase Energy Metering: New Innovative Isolated ADC Architecture Enables Three-Phase Energy Meters with Shunts  (pdf, 312 kB) Technical Articles PDF
Fully Isolated A/D Converter Ensures Energy Meter Magnetic Immunity (01 Oct 2012) Press Releases HTML
Analog Devices’ Isolated Metrology Chipset Ensures Energy Meter Magnetic Immunity (01 Oct 2012) Press Releases HTML
ADE7912 and ADE7913 Isolated ADC Overview  (pdf, 516 kB) Overview PDF
LINYANG’s Energy Terminal Unit Leverages ADI’s Fully Isolated ADC to Achieve High Accuracy in Harsh Process Control Environments  (pdf, 486 kB) Customer Case Studies PDF
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

Price Table Help

The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADE7913 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADE7913EBZ Status: Production Evaluation Board $350.00 Yes -
EVAL-SDP-CB1Z Status: Production Evaluation System Controller Boards $99.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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