Features and Benefits

  • Enables Code Optimization to Minimize Power Consumption
  • Two Power Monitors with Wide 86dB Dynamic Range
  • Measures Both Current and Voltage
  • Ability to Measure Only Accumulated Current or Accumulated Power
  • Reduced Power Consumption in Slow Accumulation Mode
  • Power-Down Mode
  • Minimizes Processor Overhead with Autonomous Operation
    • Per Channel 56-Bit Power Accumulators Capture 2.27 Hours of Data at 2048 Samples per Second
    • Per Channel 14-Bit Voltage Registers
  • High-Integration Solution Minimizes Part Count, PCB Space, and BOM Cost
    • 5μV to 100mV Current-Sense Voltage with Current Common-Mode Range of 0.5V to 24V
    • 16 Programmable I2C Addresses
    • I2C/SMBus Interface with Bus Timeout
    • Temperature Range: -40°C to +85°C
    • Small, 2.24mm x 1.91mm Footprint WLP with 12 Bumps at 0.5mm Pitch and 3mm x 3mm Footprint TDFN 12-pin package
  • Ease of Development
    • Evaluation Kit with Advanced GUI

Product Details

The MAX34427 is a specialized current, voltage, and power monitor used to determine power consumption of systems. The device has a very wide dynamic range (20,000:1) that allows for the accurate measurement of power in such systems. The device is configured and monitored with a standard I2C/SMBus serial interface. The unidirectional current sensor offers precision high-side operation with a low full-scale sense voltage. The device automatically collects the current-sense and voltage samples and then multiplies those values to obtain a power value it then accumulates. Upon a command from the host, the device transfers the accumulated power samples, as well as the accumulation count, to a set of registers accessible by the host. This transfer occurs without missing a sample and allows the host to retrieve the data not only in real-time, but at any time interval.


  • Tablets
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  • Workstations
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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.

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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.