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STMicroelectronics LIS3L02AQ5TR
- Part No.:
- LIS3L02AQ5TR
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 44-QFN
- Datasheet:
-
LIS3L02AQ5TR.pdf
- Description:
- ACCELEROMETER 2-6G ANALOG 44QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,579
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Product details
Overview
LIS3L02AQ5TR from STMicroelectronics is a low-power, analog-output, three-axis linear accelerometer with user-selectable ±2g/±6g full-scale range, 0.5 mg resolution over 100 Hz bandwidth, ratiometric output voltage (Voutx/Vouty/Voutz), and embedded self-test functionality. It operates from 2.4 V to 3.6 V and is specified for -40°C to +85°C, deployed in motion-activated mobile terminals and free-fall data protection systems.
For engineers reviewing the LIS3L02AQ5TR datasheet, LIS3L02AQ5TR pinout, LIS3L02AQ5TR application, or LIS3L02AQ5TR equivalent, key selection criteria include its QFN-44 package, analog ratiometric output architecture, factory-trimmed offset/sensitivity, self-test logic interface (ST, PD, FS pins), and axis-specific bandwidths (X/Y: 4.0 kHz, Z: 2.5 kHz).
Technical Context
The LIS3L02AQ5TR integrates a THELMA-process silicon MEMS sensing element with a CMOS IC interface featuring correlated double sampling (CDS) for offset and 1/f noise cancellation. Its fully differential signal chain includes three independent sample-and-hold (S&H) stages operating at 66 kHz, enabling oversampling-based noise reduction.
Output offset and sensitivity are ratiometric to Vdd - scaling linearly with supply voltage - eliminating supply-induced error in downstream ADC stages. The device supports programmable power-down mode (via PD pin) and full-scale selection (FS pin), with self-test activation (ST pin) inducing calibrated voltage delta on each axis output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.4 V to 3.6 V - enables direct interface with 3.3 V logic rails without level-shifting. |
| Full-Scale Range | ±2 g or ±6 g (user-selectable via FS pin) - allows trade-off between resolution and dynamic range per application. |
| Resolution | 0.5 mg over 100 Hz BW - supports precise tilt and low-g motion detection in handheld devices. |
| Bandwidth (X/Y) | Up to 4.0 kHz - sufficient for vibration analysis and gaming gesture capture. |
| Bandwidth (Z) | Up to 2.5 kHz - optimized for vertical-axis impact and free-fall detection timing. |
| Self-Test Output Delta | X: −40 mV, Y/Z: +40 mV (typ., Vdd = 3.3 V, FS = 2 g) - provides deterministic electrical verification of sensor integrity. |
| Power-Down Current | 2–5 µA - extends battery life in always-on motion-sensing applications. |
Pinout & Package
Package: QFN-44 (7 mm × 7 mm × 1.8 mm, exposed thermal pad), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 4 GND | Ground reference | Primary 0 V return path for analog and digital circuitry; connects to exposed thermal pad. |
| 5 Vdd | Power supply | Single 2.4–3.6 V rail powering both MEMS element and analog interface; ratiometric reference for outputs. |
| 6 Vouty | Analog output | Y-axis acceleration voltage (ratiometric to Vdd); requires external buffering before ADC input. |
| 7 ST | Digital control input | Active-high self-test enable; asserts mechanical test stimulus and produces known output delta. |
| 8 Voutx | Analog output | X-axis acceleration voltage; identical ratiometric behavior and impedance (110 kΩ typ.) as Vouty/Voutz. |
| 14 PD | Digital control input | Active-high power-down mode entry; reduces current to µA range while preserving configuration state. |
| 15 Voutz | Analog output | Z-axis acceleration voltage; bandwidth limited to 2.5 kHz due to mechanical resonance tuning. |
| 16 FS | Digital control input | Full-scale select: logic low = ±2 g, logic high = ±6 g - sets internal gain and affects self-test delta magnitude. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed offset & sensitivity | Eliminates need for system-level calibration; trimming values stored in non-volatile memory and auto-loaded at power-up. |
| Ratiometric analog outputs | Voutx/Vouty/Voutz scale linearly with Vdd, removing supply-voltage dependency in ADC conversion accuracy. |
| Embedded self-test (ST pin) | Electrically stimulates MEMS structure to produce repeatable, measurable output voltage shifts per axis - validates sensor path integrity. |
| High shock survivability | Withstands 10,000 g for 0.1 ms (unpowered) - ensures reliability in drop-prone consumer electronics. |
| Low-noise CDS architecture | Correlated double sampling cancels offset drift and 1/f noise, enabling stable DC-coupled acceleration measurement. |
Applications
| Mobile Motion Activation | Gaming Input Device |
|---|---|
Use Scenario: Detecting screen orientation change or wake-on-motion in smartphones and tablets. IC Role / Device Role / Timing Role: Analog 3-axis acceleration transducer providing real-time g-force vector for OS-level orientation engine. Use Value: 0.5 mg resolution enables sub-degree tilt detection; ratiometric outputs ensure consistent ADC codes across varying battery voltage. | Use Scenario: Translating handheld controller tilt and shake into game character movement or action triggers. IC Role / Device Role / Timing Role: Low-latency analog motion sensor feeding dedicated MCU ADC with X/Y/Z voltage signals sampled at ≥1 kHz. Use Value: 4.0 kHz X/Y bandwidth captures rapid wrist flicks; self-test (ST pin) allows in-field hardware validation before gameplay. |
| Free-Fall Data Protection | Appliance Control Interface |
Use Scenario: Triggering hard-disk head parking when laptop detects sudden vertical deceleration indicative of drop. IC Role / Device Role / Timing Role: Z-axis dominant detector with fast response to negative g-transients; integrated 2.5 kHz bandwidth avoids aliasing from mechanical resonance. Use Value: Factory-trimmed zero-g level (Vdd/2 ±10%) ensures reliable threshold crossing; PD pin enables ultra-low-power standby monitoring. | Use Scenario: Enabling gesture-based UI navigation (e.g., tap-to-wake, shake-to-refresh) in smart home appliances. IC Role / Device Role / Timing Role: Always-on motion trigger for low-power microcontroller wake-up; FS pin selects ±2 g for fine gesture discrimination. Use Value: 2–5 µA power-down current extends battery life in remote controls; high shock survivability prevents failure during accidental impacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-output 3-axis accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL335 | Wider supply range (1.8–3.6 V), higher noise density (300 µg/√Hz vs. 50 µg/√Hz), no embedded self-test. | Lacks ST/PD/FS digital control pins; requires external logic for mode switching and test. | Choose ADXL335 only if broader Vdd tolerance or legacy design compatibility outweighs need for self-test and tighter noise performance. |
| LIS331DLH | Digital I²C/SPI output, 10-bit resolution, lower power (7 µA active), no analog ratiometric outputs. | Requires host MCU with digital interface; eliminates need for external ADC but adds protocol overhead. | Select LIS331DLH when system already uses digital sensors or when PCB space constraints favor smaller LGA-16 package over QFN-44. |
Compared with ADXL335 and LIS331DLH, the LIS3L02AQ5TR uniquely delivers factory-calibrated analog ratiometric outputs with integrated self-test and programmable full-scale in a single QFN-44 package - ideal for cost-sensitive, analog-focused motion systems requiring field-verifiable sensor integrity.
Availability
LIS3L02AQ5TR is available at Aetrix Electronics and suitable for mobile motion activation, free-fall data protection, and appliance control interfaces requiring stable component supply and long-term industrial availability.
Supply support for LIS3L02AQ5TR 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 microcontrollers, sensors, power ICs, and automotive-grade components.
The LIS3L02AQ5TR belongs to ST's analog inertial sensor product line, engineered specifically for cost-effective, low-power, three-axis motion sensing in consumer and industrial edge devices where analog interface simplicity and self-test reliability are critical.
FAQ
What is the function of the FS pin on the LIS3L02AQ5TR?
The FS (Full-Scale) pin is a digital input that selects the device's measurement range: logic low configures ±2 g full-scale, and logic high configures ±6 g. This setting directly scales internal gain and adjusts the self-test output voltage delta - at 6 g range, the self-test delta is one-third of the 2 g value, as confirmed in the datasheet's Note 9.
How does the ratiometric output benefit system design?
The LIS3L02AQ5TR's Voutx/Vouty/Voutz scale linearly with Vdd, meaning output voltage changes proportionally as supply voltage varies. This eliminates supply-induced gain error when interfacing with an ADC referenced to the same Vdd rail - no additional voltage regulation or calibration is needed to maintain measurement accuracy across battery discharge cycles.
Can the LIS3L02AQ5TR be used in automotive applications?
No - the LIS3L02AQ5TR is not qualified to AEC-Q100 standards and is specified only for industrial temperature range (−40°C to +85°C), not automotive grade (−40°C to +125°C). Its absolute maximum ratings and qualification testing do not meet automotive reliability or ESD requirements (e.g., 2 kV HBM only), making it unsuitable for under-hood or safety-critical vehicle systems.
What is the purpose of the reserved pins (e.g., pins 17–18, 20, 22–23, 26–28)?
Reserved pins have no defined function in the LIS3L02AQ5TR and must be left unconnected unless explicitly instructed otherwise in the datasheet. Pin 26 may be tied to Vdd or GND per layout guidance, while pins 27–28 may connect to Vdd or GND depending on board-level noise considerations - all other reserved pins are NC and must float to avoid unintended coupling or leakage paths.
LIS3L02AQ5TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 44-QFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y, Z
- Acceleration Range:
- ±2g, 6g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 1000 (±2g) ~ 333 (±6g)
- Bandwidth:
- 1.5kHz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.4V ~ 3.6V
- Features:
- Adjustable Bandwidth, Selectable Scale
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-QFN-EP (7x7)
LIS3L02AQ5TR FAQ
1.How can I place an order for LIS3L02AQ5TR through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS3L02AQ5TR 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 LIS3L02AQ5TR reliable?
The price and inventory of LIS3L02AQ5TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS3L02AQ5TR is usually 5 days.
3.What payment methods are accepted for LIS3L02AQ5TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS3L02AQ5TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS3L02AQ5TR?
LIS3L02AQ5TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS3L02AQ5TR 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 LIS3L02AQ5TR?
For technical support, including LIS3L02AQ5TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS3L02AQ5TR requirements.
6.How does Aetrix verify that LIS3L02AQ5TR is sourced from the original manufacturer or authorized distributors?
All LIS3L02AQ5TR 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 LIS3L02AQ5TR meets industry standards.
7.What is the process for return or replacement of LIS3L02AQ5TR?
All LIS3L02AQ5TR units undergo pre-shipment inspection (PSI). If there is an issue with LIS3L02AQ5TR, 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 LIS3L02AQ5TR part is unused and in its original packaging.
Return procedure for LIS3L02AQ5TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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