LIS331DLHTR: A Miniature, Low-Power 3-Axis Accelerometer for Consumer Electronics

The LIS331DLHTR is a high-performance, low-power, 3-axis accelerometer from STMicroelectronics. It is designed for consumer electronics applications, such as smartphones, tablets, and wearable devices. The LIS331DLHTR offers a wide range of features, including:

• Ultra-low power consumption: 2.5 µA in sleep mode
• High sensitivity: ±2 g/±4 g/±8 g/±16 g
• Wide bandwidth: 200 Hz
• Low noise: 60 µg/√Hz
• Embedded FIFO buffer
• SPI and I²C interfaces

Key Features and Benefits

The LIS331DLHTR offers a number of key features and benefits that make it an ideal choice for consumer electronics applications. These include:

• Ultra-low power consumption: The LIS331DLHTR consumes only 2.5 µA in sleep mode, making it ideal for battery-powered devices.
• High sensitivity: The LIS331DLHTR offers a high sensitivity of ±2 g/±4 g/±8 g/±16 g, making it ideal for detecting small changes in acceleration.
• Wide bandwidth: The LIS331DLHTR offers a wide bandwidth of 200 Hz, making it ideal for capturing fast-moving objects.
• Low noise: The LIS331DLHTR offers a low noise of 60 µg/√Hz, making it ideal for applications where accuracy is important.
• Embedded FIFO buffer: The LIS331DLHTR includes an embedded FIFO buffer, which allows it to store up to 32 samples of acceleration data. This can be used to reduce the load on the host processor.
• SPI and I²C interfaces: The LIS331DLHTR supports both SPI and I²C interfaces, making it easy to connect to a variety of host processors.

Target Applications

The LIS331DLHTR is ideal for a wide range of consumer electronics applications, including:

• Smartphones
• Tablets
• Wearable devices
• Gaming devices
• Virtual reality headsets
• Augmented reality headsets
• Robotics
• Drones

Applications

The LIS331DLHTR can be used in a variety of applications, including:

• Motion tracking
• Gesture recognition
• Tilt sensing
• Fall detection
• Pedometer
• Step counter
• Heart rate monitoring
• Sleep tracking
• Object detection
• Image stabilization
• Vibration analysis

Design Considerations

When designing with the LIS331DLHTR, it is important to consider the following:

• Power supply: The LIS331DLHTR requires a power supply of 1.71 V to 3.6 V.
• Grounding: The LIS331DLHTR requires a good ground connection to ensure proper operation.
• Layout: The LIS331DLHTR should be placed away from sources of noise and vibration.
• Orientation: The LIS331DLHTR should be oriented correctly in order to measure acceleration in the desired direction.

Evaluation Tools

STMicroelectronics offers a variety of evaluation tools for the LIS331DLHTR, including:

• LIS331DLHTR evaluation board
• LIS331DLHTR breakout board
• LIS331DLHTR software library

Ordering Information

The LIS331DLHTR is available in a variety of package options, including:

• LGA-14
• LGA-16
• QFN-16

Additional Resources

• LIS331DLHTR datasheet
• LIS331DLHTR evaluation board user manual
• LIS331DLHTR software library user manual

Common Questions

Q: What is the power consumption of the LIS331DLHTR?
A: The LIS331DLHTR consumes only 2.5 µA in sleep mode.

Q: What is the sensitivity of the LIS331DLHTR?
A: The LIS331DLHTR offers a high sensitivity of ±2 g/±4 g/±8 g/±16 g.

Q: What is the bandwidth of the LIS331DLHTR?
A: The LIS331DLHTR offers a wide bandwidth of 200 Hz.

Q: What is the noise of the LIS331DLHTR?
A: The LIS331DLHTR offers a low noise of 60 µg/√Hz.

Q: What interfaces does the LIS331DLHTR support?
A: The LIS331DLHTR supports both SPI and I²C interfaces.

Q: What is the package size of the LIS331DLHTR?
A: The LIS331DLHTR is available in a variety of package options, including LGA-14, LGA-16, and QFN-16.