STMicroelectronics IIS2DH 3-Axis Accelerometer Sensor, ±16g, Ultra-Low Power 2µA, 1~5.3kHz ODR, SPI/I²C, LGA-12
STMicroelectronics IIS2DH 3-Axis Accelerometer Sensor, ±16g, Ultra-Low Power 2µA, 1~5.3kHz ODR, SPI/I²C, LGA-12 - Image 2
SKU: SENS-1066
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STMicroelectronics IIS2DH 3-Axis Accelerometer Sensor, ±16g, Ultra-Low Power 2µA, 1~5.3kHz ODR, SPI/I²C, LGA-12

₹439.00 (Inclusive of all taxes)
Out of Stock

The STMicroelectronics IIS2DH is a high-performance, ultra-low-power 3-axis MEMS accelerometer module featuring a wide ±2g to ±16g selectable range and output data rates from 1 Hz to 5.3 kHz. It supports both I²C and SPI digital interfaces for easy integration with microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32, making it ideal for motion-activated and orientation-sensing applications.

Features

  • Ultra-low power consumption down to 2 µA for extended battery life in portable devices.
  • High-resolution 3-axis acceleration sensing with selectable full-scale ranges (±2g, ±4g, ±8g, ±16g).
  • Wide output data rate (ODR) from 1 Hz to 5.3 kHz for precise motion capture across various scenarios.
  • Dual digital interface support (I²C up to 1 MHz, SPI up to 10 MHz) for flexible system integration.
  • Integrated advanced features: 6D/4D orientation detection, free-fall, wake-up, and a 32-level FIFO buffer.

Out of stock

Description

The IIS2DH accelerometer utilizes a high-performance MEMS sensing element coupled with a low-noise, low-power ASIC to deliver precise 3-axis linear acceleration measurements. Its signal conditioning path includes user-selectable full-scale ranges and programmable output data rates, allowing for optimization between power consumption and measurement bandwidth. The sensor operates from a 1.71V to 3.6V supply with 1.8V compatible I/Os, ensuring compatibility with modern low-voltage logic systems.

Designed for reliability in demanding environments, the IIS2DH includes built-in self-test functionality, an embedded temperature sensor for compensation, and robust sleep-to-wake features. Its compact LGA-12 package is engineered for space-constrained PCB layouts and maintains stable performance across the industrial temperature range of -40°C to +85°C, making it suitable for industrial monitoring, wearable tech, and IoT edge nodes.

Key Features

  • High-performance MEMS accelerometer with ultra-low noise density for precise motion detection.
  • Extremely low operating current of 2 µA in low-power mode maximizes battery runtime.
  • Programmable high-pass filter for motion detection and offset cancellation.
  • Embedded 32-slot FIFO buffer for data batching, reducing host processor load.
  • Advanced embedded functions: 6D/4D orientation, free-fall, wake-up, and activity/inactivity detection.
  • Robust LGA-12 (2x2x1 mm) package designed for automated SMT assembly and reliability.
  • Wide operating temperature range (-40°C to +85°C) ensures performance in industrial applications.
  • High-value build optimized for performance-to-cost ratio in volume production.

Applications

  • Industrial equipment vibration monitoring and predictive maintenance systems.
  • Wearable device step counting, gesture recognition, and activity tracking.
  • IoT edge node tilt sensing, shock detection, and logistics tracking.
  • Consumer electronics screen orientation, free-fall protection (HDD), and gaming controllers.
  • Robotics and UAVs for inertial measurement, attitude estimation, and motion control.

Technical Specifications

Sensor Type3-axis digital MEMS accelerometer
Manufacturer Part NumberIIS2DH
Measurement Range±2g / ±4g / ±8g / ±16g (software selectable)
Supply Voltage (Vdd)1.71 V to 3.6 V
I/O Voltage (Vdd_IO)1.8 V compatible
Current Consumption (Low Power)2 µA (typical)
Output Data Rate (ODR)1 Hz to 5.3 kHz (selectable)
Digital InterfacesI²C (up to 1 MHz), SPI (4-wire, up to 10 MHz)
Operating ModesPower-down, Low-power, Normal, High-resolution
Embedded FeaturesTemperature sensor, 32-level FIFO, self-test, 6D/4D orientation, free-fall & motion detection
Operating Temperature Range-40°C to +85°C
Package TypeLGA-12 (Land Grid Array), 2 x 2 x 1 mm

Frequently Asked Questions

What is the minimum operating voltage for the IIS2DH accelerometer?

The IIS2DH operates from a supply voltage (Vdd) range of 1.71V to 3.6V. Its digital I/O pins (Vdd_IO) are compatible with 1.8V logic levels, allowing direct connection to many modern microcontrollers without level shifters.

How do I select between the I²C and SPI communication interfaces?

Interface selection is controlled by the state of the CS (Chip Select) pin. Pulling CS high enables the I²C interface. Pulling CS low activates the 4-wire SPI mode. The sensor's address for I²C is configurable, and SPI supports data rates up to 10 MHz.

Can the IIS2DH detect free-fall and orientation changes?

Yes, the IIS2DH includes embedded algorithms for 6D/4D orientation detection and programmable free-fall detection. These features are configurable via registers and can generate interrupt signals on dedicated pins to alert the host processor without constant polling.

What is the purpose of the embedded FIFO buffer?

The integrated 32-level FIFO buffer stores acceleration data, allowing the host microcontroller to sleep for extended periods and batch-read data. This significantly reduces system power consumption and processor overhead in data-logging and event-triggered applications.

Is the sensor suitable for high-vibration industrial environments?

Yes. With a selectable full-scale range up to ±16g and a high output data rate up to 5.3 kHz, the IIS2DH can capture rapid vibrations. Its robust LGA package and operating temperature range of -40°C to +85°C make it suitable for industrial condition monitoring and harsh environments.

Package Includes

  • 1 x STMicroelectronics IIS2DH Accelerometer Sensor (LGA-12 package)

Additional Information

Weight 0.005 kg
Dimensions 2 × 2 × 2 cm

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