Overview
The LIS3L02AQ is a low-cost, low-power, analog output three-axis linear accelerometer produced by STMicroelectronics. This device integrates a sensing element and an IC interface, enabling it to detect acceleration and provide an analog signal to external systems. The sensing element is manufactured using the THELMA (Thick Epi-Poly Layer for Microactuators and Accelerometers) process, while the IC interface is produced using a CMOS process, allowing for high integration and precise trimming to match the sensing element characteristics.
The LIS3L02AQ is packaged in a 44-pin QFN (Quad Flat No-Lead) package and operates over a temperature range of -40°C to +85°C. It features user-selectable full-scale ranges of 2g and 6g, and it can measure accelerations with a maximum bandwidth of 4.0 kHz for the X and Y axes and 2.5 kHz for the Z axis.
Key Specifications
| Symbol | Parameter | Test Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Vdd | Supply voltage | - | 2.4 | 3.3 | 3.6 | V |
| Idd | Supply current (mean value) | PD pin connected to GND | 0.85 | 1.5 | - | mA |
| IddPdn | Supply current in Power Down Mode (rms value) | PD pin connected to Vdd | 2 | - | 5 | µA |
| Voff | Zero-g level | T = 25°C | Vdd/2 - 10% | Vdd/2 | Vdd/2 + 10% | V |
| OffDr | Zero-g level vs temperature | Delta from +25°C | - | - | ±1.5 mg/°C | mg/°C |
| Ar | Acceleration range | FS pin connected to GND | ±1.8 g | ±2.0 g | - | g |
| Ar | Acceleration range | FS pin connected to Vdd | ±5.4 g | - | - | g |
Key Features
- 2.4V to 3.6V single supply operation
- 0.5mg resolution over 100Hz bandwidth
- User-selectable full-scale ranges of 2g and 6g
- Output voltage, offset, and sensitivity ratiometric to the supply voltage
- Factory-trimmed device sensitivity and offset
- Embedded self-test capability
- High shock survivability
- Adjustable bandwidth using external capacitances
Applications
- Motion-activated functions in mobile terminals
- Gaming and Virtual Reality input devices
- Free-fall detection and data protection
- Antitheft systems and inertial navigation
- Appliance control and robotics
Q & A
- What is the operating voltage range of the LIS3L02AQ?
The LIS3L02AQ operates within a voltage range of 2.4V to 3.6V.
- What are the user-selectable full-scale ranges of the LIS3L02AQ?
The LIS3L02AQ has user-selectable full-scale ranges of 2g and 6g.
- What is the maximum bandwidth for the X, Y, and Z axes of the LIS3L02AQ?
The maximum bandwidth is 4.0 kHz for the X and Y axes and 2.5 kHz for the Z axis.
- How is the output voltage of the LIS3L02AQ related to the supply voltage?
The output voltage, offset, and sensitivity are ratiometric to the supply voltage.
- Does the LIS3L02AQ have a self-test feature?
- What is the temperature range over which the LIS3L02AQ is specified?
The LIS3L02AQ is specified over a temperature range of -40°C to +85°C.
- What type of package is the LIS3L02AQ available in?
The LIS3L02AQ is available in a 44-pin QFN (Quad Flat No-Lead) package.
- What manufacturing processes are used for the sensing element and IC interface of the LIS3L02AQ?
The sensing element is manufactured using the THELMA process, while the IC interface is produced using a CMOS process.
- Can the bandwidth of the LIS3L02AQ be adjusted?
- What are some common applications of the LIS3L02AQ?
