Specifications
Part NumberICM-45686
ManufacturerTDK InvenSense
Sensor Type6-Axis (3-Axis Gyro + 3-Axis Accel)
Gyroscope Range±250 / ±500 / ±1000 / ±2000 / ±4000 dps
Accelerometer Range±4 / ±8 / ±16 / ±32 g
Gyro Noise Density0.004 °/s/√Hz (typical)
Gyro Zero-Rate Bias<±1 °/s (typical)
Accel Noise Density100 µg/√Hz (typical)
Data Output Rateup to 32 kHz (gyro), up to 16 kHz (accel)
Vibration RejectionEnhanced — built-in notch filter support
PackageLGA-14 (2.5×3.0×0.86mm)
Supply Voltage1.71 V – 3.6 V
Operating Temperature−40°C to +85°C
Supply Voltage (VDD)1.71 V – 3.6 V
VDDIO (I/O Voltage)1.71 V – 3.6 V
Current Consumption (Gyro)1.6 mA typical (all axes active)
Current Consumption (Accel)0.25 mA typical
Low Power Mode~0.4 mA combined
Sleep Mode Current< 5 µA
FIFO Buffer2 KB (2048 bytes) hardware FIFO
A/D Resolution (Gyro)20-bit
A/D Resolution (Accel)16-bit
Self-TestBuilt-in self-test for both sensors
Digital InterfaceI²C up to 400 kHz, SPI up to 48 MHz
I²C AddressSelectable via AD0 pin
SPI ModeMode 0 or Mode 3 selectable
FIFO FeaturesBypass, Stream, FIFO modes with timestamp
Interrupt OutputConfigurable wake-on-motion, data ready
DMP SupportOn-chip Digital Motion Processor
Register MapEnhanced from ICM-426xx series
Part NumberICM-45686
Orderable Qty1 pcs – 10,000+ pcs
Price (1–9 pcs)Contact for quote
Price (10–99 pcs)Contact for quote
Price (100–499 pcs)Contact for quote
Price (500+ pcs)Best pricing available
Lead Time (stock)3–7 business days
PackagingTape & Reel (T&R)
RoHS CompliantYes (Pb-free)

Please confirm exact parameters with manufacturer datasheet.

Product Description

The ICM-45686 represents TDK InvenSense's latest generation of 6-axis MEMS inertial measurement units. This sensor pushes the boundaries of dynamic range with a gyroscope supporting up to ±4000 dps and an accelerometer reaching ±32 g, making it ideal for applications that experience extreme angular velocities and linear acceleration.

Built on an advanced silicon process node, the ICM-45686 delivers improved noise performance and enhanced vibration rejection capabilities compared to its predecessors. The built-in digital filter architecture helps suppress motor and propeller-induced vibrations that commonly affect drone stability — a critical feature for high-performance FPV racing platforms and heavy-lift multirotors.

With support for both I²C (400 kHz) and high-speed SPI (48 MHz) interfaces, plus an expanded 2 KB FIFO buffer, this sensor is designed for next-generation flight controller architectures that demand maximum throughput and minimal CPU overhead during sensor fusion operations.

Key Features

  • Extended dynamic range: ±4000 dps gyro, ±32g accel — handles extreme maneuvers
  • Enhanced vibration rejection with built-in notch filter support for motor noise suppression
  • High-speed SPI interface up to 48 MHz for ultra-fast data transfer
  • 2 KB hardware FIFO with timestamp — double the capacity of previous generation
  • 20-bit ADC resolution on gyroscope channel for exceptional precision
  • Compact LGA-14 package (2.5×3.0×0.86 mm) compatible with modern FC PCB layouts
  • Wide operating voltage: 1.71V – 3.6V, industrial temperature −40°C to +85°C
  • Built-in DMP (Digital Motion Processor) for offloading sensor fusion tasks
Frequently Asked Questions
What makes ICM-45686 different from ICM-42688-V?
The key differences are the extended dynamic range (±4000dps vs ±2000dps gyro, ±32g vs ±16g accel), higher SPI speed (48MHz vs 24MHz), larger FIFO (2KB vs 1KB), and 20-bit vs 16-bit gyro ADC resolution. The ICM-45686 also features enhanced vibration rejection algorithms specifically tuned for high-vibration environments like multirotor drones.
Is ICM-45686 suitable for high-G FPV freestyle drones?
Absolutely. The ±32g accelerometer range is particularly valuable for FPV freestyle builds that routinely experience high G-forces during aggressive diving turns, power loops, and snap rolls. The ±4000dps gyro range ensures no saturation even during the most violent yaw punches. The enhanced vibration rejection further stabilizes flight in high-throttle conditions.
Which firmware platforms support ICM-45686?
ICM-45686 is supported by Betaflight (latest dev branches), iNav (upcoming release), ArduPilot, and PX4. As it is the newest sensor in the lineup, driver implementations are actively being optimized. Check your specific firmware version for confirmed compatibility before integrating into production designs.

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UAV Applications
Next-Generation Flight Controller Gyro
Designed as the flagship IMU for next-gen FC boards requiring extreme dynamic range and vibration immunity for professional-grade multirotor platforms.
High-G FPV Racing Platform
Ideal for competition-class FPV racers and freestyle quads experiencing sustained high-G forces during aggressive aerial maneuvers.
Heavy-Lift Multirotor Stabilization
Vibration-resistant design excels in large industrial and agricultural drones with powerful motors generating significant frame vibrations.
Professional Cinematic Gimbal
High-resolution gyro output enables sub-degree precision for camera stabilization systems used in aerial cinematography equipment.
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