STMicroelectronics LIS2L02AQ
- Part No.:
- LIS2L02AQ
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 44-VFQFN Exposed Pad
- Datasheet:
-
LIS2L02AQ.pdf
- Description:
- ACCELEROMETER 2-6G ANALOG 44QFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,542
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Product details
Overview
LIS2L02AQ from STMicroelectronics is a dual-axis analog-output linear accelerometer with user-selectable ±2g/±6g full-scale range, 0.5 mg resolution over 100 Hz bandwidth, ratiometric output (VOUTx/VOUTy), factory-trimmed offset/sensitivity, and embedded self-test. It operates from 2.4 V to 5.25 V and is specified for -40°C to +85°C in motion-activated mobile terminals and inertial navigation systems.
For engineers reviewing the LIS2L02AQ datasheet, LIS2L02AQ pinout, LIS2L02AQ application, or LIS2L02AQ equivalent, key selection considerations include its dual-axis analog voltage outputs, supply-ratiometric scaling, programmable full-scale via FS pin, self-test activation via ST pin, and QFN-44 package compatibility with high-shock environments up to 10,000g.
Technical Context
The LIS2L02AQ integrates a THELMA-based silicon MEMS sensing element with a CMOS interface IC featuring correlated double sampling (CDS) to suppress 1/f noise and offset drift. Its fully differential signal chain includes low-noise charge amplifiers and dual S/H circuits operating at 66 kHz sampling rate per axis.
Output offset and sensitivity are ratiometric to VDD, enabling direct interfacing with ADCs without external reference compensation. Bandwidth is configurable up to 4.0 kHz via external load capacitance (f3dB = 1/(2π × 110 kΩ × CLOAD)), and power-down mode reduces current to ≤5 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.4 V to 5.25 V - supports direct connection to common logic rails (3.3 V or 5 V) without LDO |
| Full-Scale Range | ±2 g or ±6 g - selected by FS pin logic level; enables dynamic range optimization per application |
| Resolution | 0.5 mg over 100 Hz BW - sufficient for tilt sensing and low-g motion detection |
| Output Type | Analog voltage (VOUTx, VOUTy) - ratiometric to VDD; eliminates need for separate voltage reference |
| Self-Test Function | ST pin activates electrostatic actuation; produces measurable ΔVOUT (±20–40 mV) for system-level validation |
| Power-Down Current | ≤5 µA - enables ultra-low-power operation during idle periods in battery-powered devices |
| Operating Temperature | -40°C to +85°C - qualified for industrial and automotive interior environments |
Pinout & Package
Package: QFN-44 (7 mm × 7 mm × 1.8 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 4 GND | Ground reference | Primary analog/digital return path; must be low-impedance for noise immunity |
| 5 Vdd | Power supply input | Single 2.4–5.25 V rail powering both MEMS and analog interface; decoupling required |
| 6 Vouty | Analog Y-axis output | Voltage proportional to Y acceleration; ratiometric to Vdd; requires high-Z ADC input |
| 7 ST | Self-test control | Active-high digital input (0 V / >2.2 V); triggers internal test force on both axes |
| 8 Voutx | Analog X-axis output | Voltage proportional to X acceleration; identical scaling and ratiometric behavior as Vouty |
| 14 PD | Power-down enable | Active-high logic input; places device in standby with <5 µA quiescent current |
| 16 FS | Full-scale selection | Logic level selects ±2 g (low) or ±6 g (high); sets internal gain and bandwidth trade-off |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed offset & sensitivity | Eliminates need for end-user calibration; stored in non-volatile memory and auto-loaded at power-on |
| Embedded self-test (ST) | Validates mechanical integrity and signal chain functionality without external equipment or motion |
| Ratiometric output scaling | Offset and sensitivity track Vdd variation, removing error sources in ADC conversion chains |
| High shock survivability | Withstands 10,000 g for 0.1 ms - suitable for drop-prone portable electronics and industrial equipment |
| Configurable bandwidth | Set via external CLOAD; supports trade-off between noise floor and response speed (up to 4.0 kHz) |
Applications
| Mobile Motion Activation | Gaming Input Devices |
|---|---|
Use Scenario: Detecting orientation change and tap gestures in smartphones and tablets. IC Role / Device Role / Timing Role: Dual-axis analog sensor providing real-time X/Y acceleration data for UI responsiveness and screen rotation. Use Value: 0.5 mg resolution enables reliable tilt detection below 1°; ratiometric output simplifies integration with 3.3 V microcontroller ADCs. | Use Scenario: Translating hand movement into in-game character motion in handheld controllers. IC Role / Device Role / Timing Role: Low-latency analog motion capture source feeding into MCU-based gesture recognition firmware. Use Value: Embedded self-test allows factory and field verification of sensor functionality without mechanical stimulus. |
| Inertial Navigation Support | Appliance Motion Monitoring |
Use Scenario: Dead-reckoning augmentation in GPS-denied indoor environments (e.g., warehouse AGVs). IC Role / Device Role / Timing Role: Analog acceleration reference for integration into complementary filter algorithms with gyros. Use Value: ±6 g full-scale setting accommodates vehicle vibration; -40°C to +85°C rating ensures reliability across operational conditions. | Use Scenario: Detecting door opening/closing or drum imbalance in smart washing machines. IC Role / Device Role / Timing Role: Low-power motion trigger enabling wake-up of main controller only upon event detection. Use Value: Power-down mode draws ≤5 µA, extending battery life in wireless appliance monitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-axis analog accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL202E | Dual-axis, ±2 g full-scale only; PWM output (not analog voltage); higher noise floor (200 µg/√Hz) | Requires external RC filter and microcontroller PWM capture; less suitable for direct ADC interfacing | Choose when PWM timing tolerance is acceptable and analog rail headroom is constrained |
| LIS344ALH | Triple-axis, ±2 g/±8 g; SPI/I²C digital output; integrated FIFO; no analog outputs | Requires serial interface and firmware stack; eliminates analog signal conditioning but adds protocol overhead | Choose when multi-axis data, digital interface, or embedded features (e.g., interrupt generation) are required |
Compared with ADXL202E and LIS344ALH, the LIS2L02AQ uniquely delivers dual-axis analog voltage outputs with supply-ratiometric scaling, factory trimming, and QFN-44 packaging-making it optimal for cost-sensitive, low-complexity analog-signal-chain designs requiring minimal external components.
Availability
LIS2L02AQ is available at Aetrix Electronics and suitable for motion-activated mobile terminals, gaming input devices, inertial navigation support, and appliance motion monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LIS2L02AQ 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 LIS2L02AQ belongs to ST's legacy analog-output MEMS accelerometer family, engineered for cost-effective, low-power motion sensing in space-constrained portable and industrial equipment where simplicity and supply-ratiometric analog interfacing are critical.
FAQ
What is the function of the FS pin on the LIS2L02AQ?
The FS (Full-Scale) pin selects the measurement range: logic low (≤0.8 V) configures ±2 g, and logic high (≥2.2 V) configures ±6 g. This changes internal gain and affects bandwidth-higher full-scale reduces sensitivity but increases shock tolerance and usable frequency range.
How does the self-test (ST) pin verify sensor functionality?
When ST is driven high, an electrostatic force actuates the MEMS proof mass, inducing a known acceleration that shifts VOUTx and VOUTy by ±20–40 mV (at 3.3 V, ±2 g range). Measuring this delta confirms mechanical integrity and analog signal chain operation without external motion.
Is external capacitance required for stable operation?
No external capacitance is required for basic operation, but CLOAD (up to 320 pF) sets bandwidth via f3dB = 1/(2π × 110 kΩ × CLOAD). A 1 nF capacitor reduces bandwidth to ~1.4 kHz; omitting it yields maximum 4.0 kHz, subject to PCB layout noise constraints.
Can the LIS2L02AQ operate from a 5 V supply?
Yes-the absolute maximum VDD is 7 V, and the device is fully specified from 2.4 V to 5.25 V. At 5 V, output swing extends to ~0–5 V (ratiometric), offset centers near 2.5 V, and self-test delta increases cubically per datasheet Note 8.
LIS2L02AQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 44-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y
- Acceleration Range:
- ±2g, 6g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 660 (±2g) ~ 220 (±6g)
- Bandwidth:
- 4kHz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.4V ~ 5.25V
- Features:
- Adjustable Bandwidth, Selectable Scale
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-QFN (7x7)
LIS2L02AQ FAQ
1.How can I place an order for LIS2L02AQ through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS2L02AQ 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 LIS2L02AQ reliable?
The price and inventory of LIS2L02AQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS2L02AQ is usually 5 days.
3.What payment methods are accepted for LIS2L02AQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS2L02AQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS2L02AQ?
LIS2L02AQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS2L02AQ 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 LIS2L02AQ?
For technical support, including LIS2L02AQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS2L02AQ requirements.
6.How does Aetrix verify that LIS2L02AQ is sourced from the original manufacturer or authorized distributors?
All LIS2L02AQ 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 LIS2L02AQ meets industry standards.
7.What is the process for return or replacement of LIS2L02AQ?
All LIS2L02AQ units undergo pre-shipment inspection (PSI). If there is an issue with LIS2L02AQ, 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 LIS2L02AQ part is unused and in its original packaging.
Return procedure for LIS2L02AQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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