LIS3DH Overview
The LIS3DH is a high-performance, ultra-low-power three-axis linear accelerometer designed for industrial and consumer electronics applications. Featuring a digital I2C/SPI interface, it delivers precise acceleration measurements with selectable full-scale ranges from ??2g up to ??16g. Its compact 3x3x1 mm package and integrated features such as embedded FIFO buffer and interrupt generation make it ideal for motion sensing, tilt detection, and vibration monitoring. The device balances excellent sensitivity with low power consumption, ensuring reliable operation in battery-powered and portable systems. For detailed technical support and procurement, visit Produttore di circuiti integrati.
LIS3DH Technical Specifications
| Parametro | Specifiche |
|---|---|
| Axes | 3-axis linear acceleration |
| Tensione di alimentazione | 1.71 V to 3.6 V |
| Output Interface | I2C / SPI digital interface |
| Full-Scale Selection | ??2g, ??4g, ??8g, ??16g |
| Output Data Rate (ODR) | 1 Hz to 5 kHz |
| Consumo di energia | Down to 2 ??A in low-power mode |
| Pacchetto | 3 mm x 3 mm x 1 mm LGA |
| Embedded FIFO | Up to 32 samples |
| Temperature Operating Range | Da -40 a +85 °C |
LIS3DH Key Features
- Wide Dynamic Range: Selectable full-scale from ??2g to ??16g allows precise acceleration measurement adapting to various motion intensities.
- Digital I2C/SPI Interface: Facilitates easy integration with microcontrollers and digital systems, ensuring robust data communication.
- Basso consumo energetico: Ultra-low power modes extend battery life, critical for portable and wearable devices.
- Embedded FIFO Buffer: Stores up to 32 samples to reduce host processor overhead and improve system efficiency.
- Interrupt Generation: Programmable interrupt pins support motion detection, free-fall events, and activity/inactivity monitoring.
Applicazioni tipiche
- Motion and orientation detection in wearable fitness trackers and smartwatches, enabling accurate step counting and activity recognition.
- Industrial vibration monitoring for predictive maintenance and equipment health diagnostics in factory automation systems.
- Consumer electronics including mobile phones and tablets, enhancing user interface features like screen rotation and gaming control.
- Automotive systems such as navigation assistance and stability control, where reliable acceleration data is critical for safety and performance.
LIS3DH Advantages vs Typical Alternatives
This accelerometer offers a unique combination of high sensitivity and low power consumption, making it advantageous for battery-operated devices. Its flexible full-scale selection and embedded FIFO buffer improve data accuracy and system integration over typical alternatives. The digital I2C/SPI interface ensures compatibility with a wide range of microcontrollers, enhancing design versatility. Additionally, its compact package and robust temperature range contribute to reliability and ease of implementation in industrial environments.
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LIS3DH Brand Info
The LIS3DH is manufactured by STMicroelectronics, a global leader in semiconductor solutions. Known for innovation in sensor technology, STMicroelectronics provides this accelerometer as part of its MEMS sensor portfolio. The device reflects the brand??s commitment to delivering high-quality, energy-efficient motion sensors tailored for industrial, consumer, and automotive applications. STMicroelectronics supports the LIS3DH with extensive documentation, development tools, and global technical assistance to facilitate seamless integration into diverse system designs.
FAQ
What is the typical power consumption of the LIS3DH in active mode?
The LIS3DH operates with a low power consumption profile, drawing as little as 2 ??A in low-power mode. In active mode, power consumption varies depending on the selected output data rate and operating conditions but remains optimized for battery-powered applications to prolong operational life.
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Can the accelerometer detect free-fall and motion events independently?
Yes, the device includes programmable interrupt generators that can detect free-fall, motion, and inactivity events. These interrupts enable autonomous event detection without continuous host processor intervention, improving system responsiveness and power efficiency.