Alternative Parts


Features and Benefits

  • mSure sensor monitoring
    • Noninvasive, real-time direct, precision measurement of the input signal path
    • Identifies sensor malfunction
    • Companion microcontroller unit firmware to facilitate diagnostic data reporting
    • Supported for current shunts and potential divider
  • mSure self calibration
    • Automatic calibration based on a direct measurement of the full signal path
    • Allows calibration up to 0.25% error for each channel
  • 2 high performance Σ-Δ ADCs
    • Pseudo differential input voltage range: ±41.67 mV peak, +29.46 mV rms input on the current channel
    • Bit stream output
  • Industrial temperature range: −40°C to +85°C
  • Integrated temperature sensor with a 12-bit successive approximation register (SAR) ADC

Product Details

The ADE9322B has highly accurate, 2-channel Σ-Δ analog-to-digital converters (ADCs) with mSure® that converts two analog input signals into a single bit stream output. The device is enabled with an mSure sensor monitoring feature that allows the user to check the overall accuracy of the sensor and signal path to identify accuracy drifts that occur over time on the current and voltage channels, independently. The mSure sensor monitoring feature enables antitampering and meter health capabilities when incorporated into a larger system, including digital isolation, a digital metrology engine (ADE7979), and cloud analytics service. Self calibration with mSure enables the device to automatically calibrate the current and voltage channels to achieve a 1% energy accuracy.

The ADE9322B incorporates high performance ADCs. The current channel is designed to interface with a shunt resistor. The voltage channel requires an input from a potential divider. A high speed serial peripheral interface (SPI) port and a universal asynchronous receiver and transmitter (UART) port allows access to the ADE9322B registers.

Note that throughout the data sheet, multifunction pins, such as MISO/TX, are referred to either by the entire pin name or by a single function of the pin, for example, MISO, when only that function is relevant.

The ADE9322B operates from a 3.3 V supply and is available in a 32-lead LFCSP.


  • Shunt-based polyphase energy meters
  • Solar inverters
  • Process monitoring
  • Smart power distribution units
  • Polyphase ac chargers

Product Lifecycle icon-recommended 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.

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.

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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.

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