Overview
The LIS3L02AL, produced by STMicroelectronics, is an ultra-low-power 3-axis linear accelerometer designed to address various non-safety automotive and industrial applications. This device integrates a sensing element and an IC interface, enabling it to provide accurate analog signals representing the detected accelerations. The LIS3L02AL is known for its low power consumption, high shock survivability, and extended temperature range, making it suitable for a wide range of environments and use cases.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (Vdd) | 2.4 | 3.3 | 3.6 | V |
| Supply Current (Idd) | 0.85 | 1.5 | - | mA |
| Supply Current in Power Down Mode (IddPdn) | 2 | - | 5 | µA |
| Acceleration Range (FS pin connected to GND) | ±1.8 | ±2.0 | - | g |
| Acceleration Range (FS pin connected to Vdd) | ±5.4 | ±6.0 | - | g |
| Sensitivity (Full-scale = 2g) | Vdd/5 - 10% | Vdd/5 | Vdd/5 + 10% | V/g |
| Sensitivity (Full-scale = 6g) | Vdd/15 - 10% | Vdd/15 | Vdd/15 + 10% | V/g |
| Zero-g Level (T = 25°C) | Vdd/2 - 10% | Vdd/2 | Vdd/2 + 10% | V |
| Operating Temperature Range | -40 | - | +85 | °C |
| Sensing Element Resonance Frequency | - | - | 1.5 KHz | - |
Key Features
- Low power consumption
- User selectable full-scale of ±2g and ±6g
- High shock survivability
- Embedded self-test and power-down capabilities
- Output voltage, offset, and sensitivity ratiometric to the supply voltage
- Lead-free and ECOPACK compatible
- Extended temperature range of -40°C to +85°C
- Capable of measuring accelerations over a bandwidth of 1.5 KHz for all axes
- Self-test capability to check the mechanical and electrical signal path of the sensor
Applications
- Mobile terminals
- Gaming and Virtual Reality input devices
- Free-fall detection for data protection
- Antitheft systems and Inertial Navigation
- Appliance and Robotics
Q & A
- What is the supply voltage range for the LIS3L02AL?
The supply voltage range is from 2.4V to 3.6V. - What are the user-selectable full-scale ranges for the LIS3L02AL?
The user-selectable full-scale ranges are ±2g and ±6g. - What is the operating temperature range of the LIS3L02AL?
The operating temperature range is from -40°C to +85°C. - Does the LIS3L02AL have a self-test feature?
Yes, the LIS3L02AL has an embedded self-test capability to check the mechanical and electrical signal path of the sensor. - What is the typical supply current of the LIS3L02AL in normal mode?
The typical supply current is 1.5 mA. - What is the sensitivity of the LIS3L02AL for a full-scale of 2g?
The sensitivity is typically Vdd/5, with a variation of ±10%. - How does the sensitivity and zero-g level change with the supply voltage?
The sensitivity and zero-g level are ratiometric to the supply voltage, meaning they increase or decrease almost linearly with the supply voltage. - What is the recommended capacitance for the external filter capacitors?
A minimum capacitance of 320 pF for Cload(x, y, z) is required. - What are some common applications of the LIS3L02AL?
Common applications include mobile terminals, gaming and Virtual Reality input devices, free-fall detection, antitheft systems, and inertial navigation. - Is the LIS3L02AL lead-free and ECOPACK compatible?
Yes, the LIS3L02AL is lead-free and ECOPACK compatible.
