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STMicroelectronics LIS2L02ALTR
- Part No.:
- LIS2L02ALTR
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 8-LLGA
- Datasheet:
-
LIS2L02ALTR.pdf
- Description:
- ACCELEROMETER 2G ANALOG 8LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,858
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Product details
Overview
LIS2L02ALTR from STMicroelectronics is a 2-axis analog-output MEMS accelerometer with ±2g full-scale range, 0.3mg resolution over 100Hz bandwidth, and ratiometric voltage output referenced to 2.4–5.25V supply. It integrates capacitive sensing elements and a CMOS interface in an LGA-8 package, enabling motion detection in compact portable electronics such as mobile handsets and gaming controllers.
For engineers reviewing the LIS2L02ALTR datasheet, LIS2L02ALTR pinout, LIS2L02ALTR application, or LIS2L02ALTR equivalent, key selection criteria include its analog ratiometric output architecture, self-test capability, low-power operation (0.85–1.5mA), and high shock survivability (10,000g/0.1ms).
Technical Context
The LIS2L02ALTR employs a surface-micromachined capacitive sensing element with anchored silicon proof mass and integrated Correlated Double Sampling (CDS) charge amplifier. Its fully differential signal chain cancels 1/f noise and offset drift, delivering stable analog outputs for X and Y axes.
Factory-trimmed zero-g level and sensitivity are stored in non-volatile memory and loaded at power-up. Output impedance is 110kΩ (±20%), enabling configurable low-pass filtering via external capacitors ≥1nF - supporting anti-aliasing and bandwidth control down to 1Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-Scale Range | ±2g - defines maximum measurable static/dynamic acceleration without saturation |
| Resolution | 0.3mg over 100Hz bandwidth - enables precise tilt and low-g motion detection |
| Supply Voltage | 2.4V to 5.25V - supports direct connection to common logic rails (3.3V/5V) |
| Supply Current | 0.85–1.5mA - enables battery-powered operation with multi-day runtime |
| Output Impedance | 110kΩ ±20% - sets RC filter corner frequency with external capacitor (e.g., 15nF → 100Hz) |
| Self-Test Output ΔV | ±50mV (X/Y) at Vdd=3.3V - verifies mechanical integrity and signal path in-system |
| Operating Temperature | −40°C to +85°C - qualified for industrial and consumer environments |
| Shock Survivability | 10,000g for 0.1ms - withstands drop impact in handheld devices |
Pinout & Package
LGA-8 (5×5×1.6mm) land grid array package with exposed die pad; RoHS-compliant ECOPACK® construction; pin 1 indicator electrically tied to ST pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 ST | Self-Test Control Input | Logic high (≥0.7×Vdd) activates electrostatic test force; logic low enables normal operation |
| 2 NC | No Connect | Not internally bonded; must remain unconnected |
| 3 GND | Ground Reference | 0V return for supply and analog outputs; requires low-impedance PCB plane |
| 4 Reserved | Unassigned Terminal | Internally unused; must be left floating or grounded per layout guidelines |
| 5 Reserved | Unassigned Terminal | Internally unused; must be left floating or grounded per layout guidelines |
| 6 Vouty | Analog Output (Y-Axis) | Single-ended ratiometric voltage (Vdd/2 ±50mV @ 0g); drives high-Z ADC inputs |
| 7 Voutx | Analog Output (X-Axis) | Single-ended ratiometric voltage (Vdd/2 ±50mV @ 0g); independent of Vouty path |
| 8 Vdd | Power Supply Input | Accepts 2.4–5.25V; requires local 100nF ceramic + 10µF bulk decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Ratiometric Output | Voutx/Vouty zero-g level and sensitivity scale linearly with Vdd - eliminates need for separate reference voltage |
| Embedded Self-Test | Electrostatic actuation verifies mechanical response and analog signal chain without external stimulus |
| Low-Power Operation | Sub-1.5mA typical current draw enables integration into always-on motion wake-up systems |
| High Shock Robustness | Rated for 10,000g mechanical shock - suitable for drop-prone consumer electronics |
| Factory Calibration | Non-volatile trimming of zero-g offset and sensitivity ensures ±2g accuracy without user calibration |
Applications
| Mobile Handset Tilt Sensing | Gaming Controller Motion Input |
|---|---|
Use Scenario: Detecting portrait/landscape orientation changes during screen rotation in smartphones. IC Role / Device Role / Timing Role: Analog 2-axis acceleration sensor providing DC-coupled X/Y voltage outputs proportional to gravity vector. Use Value: Enables seamless UI adaptation using only 0.3mg resolution and ±2g range - sufficient for static tilt measurement without overspec'ed bandwidth. |
Use Scenario: Translating physical controller tilt and shake gestures into game character movement. IC Role / Device Role / Timing Role: Low-latency analog motion transducer feeding into microcontroller ADC with configurable 1–200Hz bandwidth. Use Value: Self-test function validates sensor health before gameplay; ratiometric output simplifies ADC reference design across varying battery voltages. |
| Free-Fall Data Protection | Appliance Vibration Monitoring |
Use Scenario: Triggering hard disk head parking when laptop detects sudden vertical acceleration loss (free-fall event). IC Role / Device Role / Timing Role: High-reliability inertial detector with 10,000g shock rating to survive accidental drops during operation. Use Value: 0.3mg resolution enables reliable free-fall detection within 10–20ms; factory-trimmed offset ensures consistent trip threshold across temperature. |
Use Scenario: Monitoring abnormal vibration signatures in washing machines or HVAC compressors for predictive maintenance. IC Role / Device Role / Timing Role: Compact analog accelerometer mounted on motor housing to capture low-frequency (<100Hz) mechanical resonance. Use Value: External RC filtering (e.g., 15nF → 100Hz cutoff) rejects high-frequency noise while preserving fault-indicative harmonics. |
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 |
|---|---|---|---|
| ADXL322ARZ | Wider bandwidth (5.5kHz vs 2kHz), higher noise density (500µg/√Hz vs 30µg/√Hz), no embedded self-test | Better suited for high-frequency vibration analysis; less ideal for low-noise tilt or free-fall detection | Select when bandwidth >1kHz is required and self-test is not mandatory |
| MMA7260QT | Lower supply current (500µA vs 1.5mA), fixed 3.3V operation only, no ratiometric output scaling | Optimized for ultra-low-power battery life but lacks flexibility for dual-rail (3.3V/5V) designs | Select for energy-constrained applications where supply voltage is fixed and resolution >0.5mg is acceptable |
Compared with ADXL322ARZ and MMA7260QT, the LIS2L02ALTR uniquely balances low-noise analog performance, supply voltage flexibility, and built-in self-test - making it optimal for cost-sensitive, space-constrained consumer motion systems requiring field validation.
Availability
LIS2L02ALTR is available at Aetrix Electronics and suitable for mobile terminals, gaming input devices, free-fall data protection systems, and appliance vibration monitoring requiring stable component supply across extended temperature ranges.
Supply support for LIS2L02ALTR 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, specializing in MEMS sensors, microcontrollers, and power management ICs.
The LIS2L02ALTR belongs to ST's legacy analog-output MEMS accelerometer family, designed specifically for cost-effective, ultracompact motion sensing in battery-powered consumer electronics.
FAQ
What is the recommended external capacitor value for 100Hz anti-aliasing filtering?
For a 100Hz cutoff frequency, use a 15nF ceramic capacitor between Voutx/GND and Vouty/GND. This pairs with the device's nominal 110kΩ output impedance (ft = 1/(2π × 110kΩ × 15nF) ≈ 96Hz). Ensure capacitor tolerance is ±10% or better to maintain filter accuracy across production units.
How does the self-test function verify sensor integrity?
The self-test applies an electrostatic force to the proof mass via the ST pin, inducing a known ±50mV DC shift in Voutx/Vouty at 3.3V. Measuring this voltage change confirms both mechanical mobility of the MEMS structure and correct operation of the analog signal chain - including amplifier gain, offset, and output driver.
Can LIS2L02ALTR operate from a 5V supply without level-shifting ADC inputs?
Yes - its ratiometric architecture ensures Voutx/Vouty zero-g level remains at Vdd/2 (2.5V @ 5V), and full-scale swing stays within 0–5V. When paired with a 5V-referenced ADC, no level-shifting circuitry is needed, simplifying signal conditioning and reducing BOM count.
Is LIS2L02ALTR still in active production despite its 2006 datasheet revision?
While the datasheet revision dates to 2006, LIS2L02ALTR remains actively manufactured and stocked by STMicroelectronics and authorized distributors. It is classified as a mature product with guaranteed long-term availability for industrial and consumer programs through Aetrix Electronics' lifecycle management program.
LIS2L02ALTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-LLGA
- Packaging:
- Tape & Reel (TR)
- 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
LIS2L02ALTR FAQ
1.How can I place an order for LIS2L02ALTR through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS2L02ALTR 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 LIS2L02ALTR reliable?
The price and inventory of LIS2L02ALTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS2L02ALTR is usually 5 days.
3.What payment methods are accepted for LIS2L02ALTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS2L02ALTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS2L02ALTR?
LIS2L02ALTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS2L02ALTR 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 LIS2L02ALTR?
For technical support, including LIS2L02ALTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS2L02ALTR requirements.
6.How does Aetrix verify that LIS2L02ALTR is sourced from the original manufacturer or authorized distributors?
All LIS2L02ALTR 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 LIS2L02ALTR meets industry standards.
7.What is the process for return or replacement of LIS2L02ALTR?
All LIS2L02ALTR units undergo pre-shipment inspection (PSI). If there is an issue with LIS2L02ALTR, 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 LIS2L02ALTR part is unused and in its original packaging.
Return procedure for LIS2L02ALTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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