Low-Power, Ultra-Accurate 6+3 DoF IMU

The Industry's Smallest and Thinnest 6DoF IMU with Stable and Accurate Gyroscope and Reliable Accelerometer

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The MAX21100 is a monolithic 3-axis gyroscope plus 3-axis accelerometer Inertial Measurement Unit (IMU) with integrated 9-axis sensor fusion using proprietary Motion Merging Engine (MME) for handset and tablet applications, game controllers, motion remote controls, and other consumer devices.

The MAX21100 is the industry’s most accurate 6+3 DoF inertial measurement unit available in a 3mm x 3mm x 0.83mm package and capable of working with a supply voltage as low as 1.71V.

The MAX21100 can interface an external magnetometer through a dedicated I²C master.

The internal Motion Merging Engine (MME) can be flexibly configured to get the most suitable accuracy power trade-off.

The MAX21100 is available in a 16-lead plastic land grid array (LGA) package and can operate within a temperature range of -40°C to +85°C. 
MAX21100: Functional Diagram MAX21100: Functional Diagram Enlarge+

Key Features

  • Fully Integrated, Low Power, Motion Merging Engine Performs Accurate 9DoF Sensor Fusion Using Ultra- Fast, Low Power (50μA) Maxim Proprietary Algorithm Providing:
    • Quaternion Output
    • Gravity and Heading Output
  • High Output Data Rate (ODR) for Accelerometer (Up to 2kHz) and Gyroscope (Up to 8kHz)
  • Four Selectable Full Scales for Gyroscope (250/500/1000/2000 dps) and Accelerometer (2/4/8/16 g)
  • I²C Standard (100kHz), Fast (400kHz), and High-Speed (3.4MHz) Serial Interface—10MHz SPI Interface
  • 128 Bytes (64 x 16 Bits) Embedded FIFO with Multiple FIFO Modes
  • Unique 48-Bit Serial Number as Die ID
  • 5.65mA in Low-Noise Mode and 3.45mA in Eco Mode with MME Active
  • 1.2µA Current Consumption in Power-Down Mode
  • 45ms Turn-On Time from Power-Down and 4ms Turn-On Time from Standby Mode
  • High Stability Over Temperature and Time: Bias Stability of 4°/hr
  • High Shock Survivability (10,000g Shock Tolerant)


  • Appliances and Robotics
  • GPS and Inertial Navigation Systems
  • Health and Sports Monitoring
  • Motion Control with HMI (Human-Machine Interface)
  • Motion-Based 3D Mice and 3D Remote Controls
  • Motion-Based Game Controllers
  • Optical/Electronic Image Stabilization
Product Reliability Reports: MAX21100.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources

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  • Per-Channel Configurability Enables Wide Range of Applications 
  • Fault Tolerant with Built-In Diagnostics
  • High Integration Reduces BOM Count and PCB Space 

Type ID Title
Evaluation Board8681MAX21100EVBRD Evaluation Board Adapter for the MAX21100
Evaluation Board8643MAX21100EVKIT Evaluation Kit for the MAX21100 6 DoF (Gyroscope-Accelerometer Combo)