LIS3DHHTR Overview
The LIS3DHHTR is a ultra-low-power, high-performance three-axis linear accelerometer designed for industrial and consumer applications requiring precise motion detection. Featuring a digital I2C/SPI interface, it enables easy integration with microcontrollers and processors. Its compact 3x3x1 mm LGA package supports space-constrained designs, while selectable full-scale ranges up to ??16g deliver versatile sensitivity. With programmable interrupts for activity, free-fall, and tap detection, the device enhances system responsiveness and power efficiency. The LIS3DHHTR is well-suited for motion-based user interfaces, asset tracking, and vibration monitoring. For more details, visit IC Manufacturer.
LIS3DHHTR Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement axes | 3-axis (X, Y, Z) |
| Full-scale acceleration range | ??2g / ??4g / ??8g / ??16g selectable |
| Output data rate (ODR) | 1 Hz to 5 kHz programmable |
| Interface | I2C (up to 400 kHz) and SPI (3-/4-wire) |
| Supply voltage | 1.71 V to 3.6 V |
| Operating current | Down to 2 ??A in low-power mode |
| Package type | 3x3x1 mm LGA-16 |
| Temperature range | -40??C to +85??C |
LIS3DHHTR Key Features
- High-resolution 16-bit output: Provides accurate motion sensing for precise tilt and vibration measurement.
- Selectable full-scale ranges: Allows optimization of sensitivity and dynamic range for diverse application needs.
- Low-power consumption modes: Extend battery life in portable and wearable devices without sacrificing performance.
- Integrated interrupt engine: Supports free-fall, tap, and activity detection to reduce host CPU load and enable quick system response.
Typical Applications
- Consumer electronics such as smartphones and tablets for orientation detection, step counting, and gaming control.
- Industrial machinery monitoring where vibration analysis helps predict maintenance needs and prevent failures.
- Wearable devices that require motion tracking with minimal power consumption for extended battery operation.
- Asset tracking systems that benefit from motion detection to provide location and status updates in real time.
LIS3DHHTR Advantages vs Typical Alternatives
This accelerometer offers superior sensitivity and resolution compared to many standard MEMS sensors, enabling precise motion detection even at low vibration levels. Its ultra-low power modes extend operational life in battery-powered systems. The flexible digital interfaces and programmable interrupts improve integration efficiency and system responsiveness. Additionally, the compact LGA package supports miniaturized designs without compromising reliability or thermal performance.
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LIS3DHHTR Brand Info
The LIS3DHHTR is developed by STMicroelectronics, a global leader in semiconductor manufacturing. ST??s expertise in MEMS technology ensures this accelerometer delivers robust performance, excellent power efficiency, and ease of integration. The device is part of ST??s LIS3DH family, widely adopted for industrial, consumer, and IoT applications. STMicroelectronics provides comprehensive documentation, development tools, and support to facilitate rapid design-in and deployment.
FAQ
What is the typical power consumption of the LIS3DHHTR during operation?
The device operates with low current consumption, typically down to 2 ??A in low-power mode, making it suitable for battery-powered applications where energy efficiency is critical. Power usage varies depending on output data rate and operating mode.
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Can the full-scale range be configured dynamically in the LIS3DHHTR?
Yes, the sensor allows selection among four full-scale ranges (??2g, ??4g, ??8g, ??16g) through software registers, enabling adaptation to different application requirements without hardware changes.
What communication protocols are supported for interfacing with the LIS3DHHTR?
The device supports both I2C and SPI digital interfaces. I2C operates up to 400 kHz, while SPI supports 3- or 4-wire configurations, providing flexibility for various microcontroller platforms and system architectures.