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STMicroelectronics LIS2L02AL
- Part No.:
- LIS2L02AL
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 8-LLGA
- Datasheet:
-
LIS2L02AL.pdf
- Description:
- ACCELEROMETER 2G ANALOG 8LGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,942
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Product details
Overview
LIS2L02AL from STMicroelectronics is a 2-axis analog-output MEMS accelerometer with ±2g full-scale range, 0.3mg resolution over 100Hz bandwidth, ratiometric output (Vdd/5 V/g sensitivity), and embedded self-test functionality - deployed in mobile terminals for free-fall detection and inertial navigation systems requiring low-power analog sensing.
For engineers reviewing the LIS2L02AL datasheet, LIS2L02AL pinout, LIS2L02AL application, or LIS2L02AL equivalent, this page delivers verified mechanical specs, LGA-8 package layout, supply-voltage-dependent offset/sensitivity behavior, and real-world use cases in robotics, appliance motion control, and data protection systems.
Technical Context
The LIS2L02AL integrates a surface-micromachined capacitive sensing element with a fully differential CMOS interface featuring Correlated Double Sampling (CDS) to suppress 1/f noise and offset drift. Its dual-channel analog outputs (Voutx/Vouty) are ratiometric to Vdd, enabling stable scaling across 2.4–5.25V supply range without external reference.
Self-test activation via ST pin applies electrostatic force to the proof mass, inducing predictable DC-level shifts (±50mV typ. at 3.3V) on both axes - verifying mechanical integrity and signal chain continuity. Output impedance (110kΩ typ.) forms a programmable RC low-pass filter with external Cload ≥1nF, supporting configurable bandwidths from 1Hz to 2kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-Scale Range | ±2g - Enables precise measurement of gravity-level acceleration and moderate shock events in handheld devices. |
| Resolution | 0.3mg over 100Hz BW - Supports sub-degree tilt sensing and fine-motion detection in robotics and VR input. |
| Sensitivity | Vdd/5 V/g (ratiometric) - Output scales linearly with supply voltage; eliminates need for external voltage reference. |
| Zero-g Level | Vdd/2 ±6% - Centered at mid-supply; enables single-ended ADC interfacing with minimal offset calibration. |
| Supply Current | 0.85–1.5mA - Optimized for battery-powered applications like mobile terminals and portable gaming controllers. |
| Operating Temp | −40°C to +85°C - Validated for industrial-grade reliability in appliances and automotive cabin electronics. |
| Shock Survivability | 10,000g for 0.1ms - Withstands mechanical stress during drop events and assembly handling. |
Pinout & Package
Package: LGA-8 (5mm × 5mm × 1.6mm), ECOPACK® lead-free, land grid array with exposed pad not electrically connected.
| Pin / Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 ST | Self-test control input | Logic high (≥0.7×Vdd) activates electrostatic test force; logic low (≤0.3×Vdd) enables normal operation. |
| 2 NC | No connection | Unbonded die pad; must remain unconnected to avoid parasitic coupling or ESD path disruption. |
| 3 GND | Ground reference | 0V return for analog and digital circuitry; requires low-inductance connection to PCB ground plane. |
| 4 Reserved | Factory-trim node | Internally used for factory calibration; leave unconnected per datasheet guidance. |
| 5 Reserved | Factory-trim node | Internally used for trimming zero-g level and sensitivity; no user access required. |
| 6 Vouty | Analog output Y-axis | Single-ended voltage proportional to Y-axis acceleration; Rout = 110kΩ enables RC filtering with external capacitor. |
| 7 Voutx | Analog output X-axis | Single-ended voltage proportional to X-axis acceleration; identical electrical characteristics to Vouty. |
| 8 Vdd | Power supply input | Accepts 2.4–5.25V; requires local 100nF ceramic + 10µF aluminum decoupling per application note. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded self-test | Verifies mechanical displacement and analog signal path integrity without external equipment - critical for safety-critical free-fall detection. |
| Ratiometric output | Vout = (Vdd/2) ± (Vdd/5) × acceleration - eliminates dependency on stable voltage reference, simplifying BOM and layout. |
| Factory-trimmed offset & sensitivity | Zero-g level and sensitivity stored in nonvolatile memory - enables plug-and-play operation without system-level calibration. |
| Programmable bandwidth | Set via external Cload (1nF–1500nF); cut-off frequency = 1.45µF / Cload - allows noise vs. response trade-off per application. |
| High shock survivability | Rated for 10,000g transient shocks - ensures functional integrity after mechanical impact in portable consumer electronics. |
Applications
| Mobile Device Free-Fall Detection | Gaming Input Motion Sensing |
|---|---|
|
Use Scenario: Detect sudden vertical acceleration loss in smartphones or tablets to trigger hard-disk park or screen lock before impact. IC Role / Device Role / Timing Role: Analog 2-axis accelerometer providing real-time g-force magnitude and direction to host MCU. Use Value: 0.3mg resolution enables reliable discrimination between free-fall (≈0g) and gentle handling (≥0.1g), reducing false triggers. |
Use Scenario: Translate handheld controller tilt and swing into game character movement or camera orientation in VR headsets. IC Role / Device Role / Timing Role: Low-latency analog sensor feeding ADC for real-time motion tracking at >100Hz update rate. Use Value: Ratiometric output maintains consistent sensitivity across varying battery voltage, preserving gesture recognition accuracy. |
| Appliance Tilt & Vibration Monitoring | Robotics Platform Stabilization |
|
Use Scenario: Monitor washing machine drum imbalance or refrigerator door opening angle to enable adaptive motor control or alarm logic. IC Role / Device Role / Timing Role: Static and dynamic acceleration sensor interfaced to microcontroller for threshold-based event detection. Use Value: −40°C to +85°C operating range ensures reliability inside thermally variable home appliance enclosures. |
Use Scenario: Provide pitch/roll feedback for two-wheeled balancing robots or autonomous vacuum cleaner cliff detection. IC Role / Device Role / Timing Role: Dual-axis analog input source for PID loop control, requiring stable zero-g baseline and repeatable sensitivity. Use Value: Factory-trimmed zero-g level (±6% of Vdd/2) minimizes initial calibration effort and improves long-term stability in embedded firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-axis analog accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL202E | Digital PWM output (not analog voltage); 5V-only supply; higher power (0.6mA idle, 1.2mA active) | Requires external ADC or PWM-to-analog conversion; less suitable for direct low-power MCU analog input. | Select when digital interface compatibility or legacy design reuse outweighs analog simplicity. |
| MMA7260QT | ±1.5g/±2g/±4g/±6g selectable FS; 2.2–3.6V supply; higher noise density (400µg/√Hz vs. 30µg/√Hz) | Wider FS flexibility but lower resolution (0.5mg vs. 0.3mg) and reduced SNR limits precision tilt sensing. | Select when multi-range configurability is prioritized over resolution and low-noise performance. |
Compared with ADXL202E and MMA7260QT, the LIS2L02AL offers superior resolution (0.3mg), true ratiometric analog outputs eliminating reference dependencies, and tighter zero-g tolerance - making it optimal for cost-sensitive, battery-powered systems demanding high static accuracy and minimal external components.
Availability
LIS2L02AL is available at Aetrix Electronics and suitable for mobile terminal free-fall detection, appliance vibration monitoring, and robotics platform stabilization requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LIS2L02AL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MEMS, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The LIS2L02AL belongs to ST's legacy analog MEMS accelerometer family, engineered specifically for ultra-compact, low-power inertial sensing in space-constrained portable electronics where analog output simplicity and factory-trimmed accuracy are critical.
FAQ
What is the recommended external capacitor value for 100Hz bandwidth?
For 100Hz cutoff frequency, use Cload = 15nF per output channel (Voutx/Vouty), based on the nominal 110kΩ output impedance and the formula ft = 1.45µF / Cload. This value balances anti-aliasing effectiveness with board space constraints and ensures flat response below the 2kHz resonance frequency.
How does supply voltage variation affect zero-g level and sensitivity?
Both zero-g level and sensitivity are ratiometric to Vdd: zero-g level = Vdd/2 ±6%, sensitivity = Vdd/5 V/g. As Vdd changes from 2.4V to 5.25V, zero-g shifts from 1.2V to 2.625V and sensitivity from 0.48V/g to 1.05V/g - maintaining proportional scaling without recalibration.
Can the LIS2L02AL be used in a 3-axis configuration?
No - the LIS2L02AL is strictly a 2-axis (X/Y) device with no Z-axis sensing capability. For 3-axis applications, ST recommends the pin-compatible LIS3LV02DL or newer LIS3DH, which provide orthogonal Z-axis measurement and shared LGA-8 footprint in some variants.
Is the ST pin internally pulled down or does it require an external resistor?
The ST pin has no internal pull-down; it must be actively driven to GND (logic 0) for normal operation or to Vdd (logic 1) to activate self-test. Leaving ST floating may cause undefined behavior - a 100kΩ pull-down resistor is recommended if microcontroller GPIO control is unavailable.
LIS2L02AL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-LLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y
- Acceleration Range:
- ±2g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 660
- Bandwidth:
- 2kHz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.4V ~ 5.25V
- Features:
- Adjustable Bandwidth
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LGA
LIS2L02AL FAQ
1.How can I place an order for LIS2L02AL through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS2L02AL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LIS2L02AL reliable?
The price and inventory of LIS2L02AL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS2L02AL is usually 5 days.
3.What payment methods are accepted for LIS2L02AL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS2L02AL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS2L02AL?
LIS2L02AL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS2L02AL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LIS2L02AL?
For technical support, including LIS2L02AL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS2L02AL requirements.
6.How does Aetrix verify that LIS2L02AL is sourced from the original manufacturer or authorized distributors?
All LIS2L02AL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LIS2L02AL meets industry standards.
7.What is the process for return or replacement of LIS2L02AL?
All LIS2L02AL units undergo pre-shipment inspection (PSI). If there is an issue with LIS2L02AL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LIS2L02AL part is unused and in its original packaging.
Return procedure for LIS2L02AL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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