ADE7912 2-Channel, Isolated, Sigma Delta ADC with SPI

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 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

Features and Benefits
  • Two 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 4 ADE7912/ADE7913 devices 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
  • Single 3.3 V supply
  • 20-lead, wide-body SOIC package with 8.3 mm creepage
  • Operating temperature: −40°C to +85°C
  • Safety and regulatory approvals
    • UL recognition – 5000 V rms for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A – IEC 61010-1: 300 V rms
    • VDE certificate of conformity – DIN VDE V 0884-10 (VDE V 0884-10):2006-12 – VIORM = 846 V peak
  • UL recognition
    – 5000 V rms for 1 minute per UL 1577
  • CSA Component Acceptance Notice 5A
    – IEC 61010-1: 300 V rms
  • VDE certificate of conformity
    – DIN VDE V 0884-10 (VDE V 0884-10):2006-12
    – VIORM = 846 V peak
  • Analog to Digital Converters
    Data Sheets
    Documentnote
    ADE7912/ADE7913: 3-Channel, Isolated, Sigma-Delta ADC with SPI Data Sheet (Rev. B)PDF 896.12 K
    Application Notes
    Documentnote
    AN-1374: ADE7912/ADE7913 Front-End DSP Specifications (Rev. 0)PDF 169.17 K
    AN-1332: Architecting a Direct, 3-Phase Energy Meter with Shunts Using the ADE7912/ADE7913 (Rev. 0)PDF 295.84 K
    AN-1312: Applying the ADE7912/ADE7913 to 4 mA to 20 mA DC Measurements (Rev. 0)PDF 143 kB
    AN-1304: ADE7912/ADE7913 DC Measurement Performance (Rev. 0)PDF 190 kB
    User Guides
    Documentnote
    UG-571: Evaluating the ADE7913 Isolated Sigma-Delta ADCPDF 1070 kB
    Product Highlight
    Documentnote
    ADE7912 and ADE7913 Isolated ADC OverviewPDF 516.85 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADE7912ARIZ Production20 ld SOIC (increased Creepage) OTH 31-40 to 85C5.425.42Y
    ADE7912ARIZ-RL Production20 ld SOIC (increased Creepage) REEL 1000-40 to 85C05.42Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-ADE7913EBZEvaluation Board350Y
    EVAL-SDP-CB1ZEvaluation System Controller Boards99Y
    Reference Materials
    ADE7912/ADE7913:内置SPI接口的2通道、隔离式Σ-Δ型ADC (Rev. B) ade7912
    ADE7912/ADE7913: 3-Channel, Isolated, Sigma-Delta ADC with SPI Data Sheet (Rev. B) ade7912
    AN-1374: ADE7912/ADE7913 Front-End DSP Specifications (Rev. 0) ade7912
    AN-1332:用ADE7912/ADE7913构建锰铜分流器基于锰铜分流器的 直连式三相电表 (Rev. 0) ade7912
    AN-1332: Architecting a Direct, 3-Phase Energy Meter with Shunts Using the ADE7912/ADE7913 (Rev. 0) ade7912
    AN-1312: Applying the ADE7912/ADE7913 to 4 mA to 20 mA DC Measurements (Rev. 0) ade7912
    AN-1374:ADE7912 / ADE7913 前端 DSP 规格 (Rev. 0) ade7912
    AN-1304: ADE7912/ADE7913 DC Measurement Performance (Rev. 0) ade7912
    UG-571: Evaluating the ADE7913 Isolated Sigma-Delta ADC ade7912
    ADE7912 and ADE7913 Isolated ADC Overview ade7912
    Electric Utilities Can Protect Revenue Through New Advances in Smart Meter... ade7912
    LINYANG’s Energy Terminal Unit Leverages ADI’s Fully Isolated ADC to Achieve... ade7912
    MS-2404: 三相电能计量趋势:创新的隔离式ADC架构支持利用分流电阻进行三相电能计量 ade7912