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STMicroelectronics LIS332ARTR
- Part No.:
- LIS332ARTR
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 16-VFLGA
- Datasheet:
-
LIS332ARTR.pdf
- Description:
- ACCELEROMETER 2G ANALOG 16LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,429
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Product details
Overview
LIS332ARTR from STMicroelectronics is a 3-axis ±2 g analog-output MEMS accelerometer in LGA-16 (3×3×1.0 mm) package, featuring ratiometric voltage outputs per axis (VoutX/VoutY/VoutZ), 2.0 kHz sensing bandwidth, embedded self-test, and power-down mode. It delivers stable performance over −40 to +85 °C and is used in tilt-sensing, free-fall detection, and motion-controlled gaming interfaces.
For engineers reviewing the LIS332ARTR datasheet, LIS332ARTR pinout, LIS332ARTR application, or LIS332ARTR equivalent, key selection criteria include analog output impedance (32 kΩ), zero-g level tolerance (±6% of Vdd), self-test output voltage change (60–700 mV/axis), and external filter capacitor dependency for bandwidth control.
Technical Context
The LIS332ARTR integrates a surface-micromachined capacitive sensing element with a CMOS interface IC that performs correlated double sampling (CDS) to suppress offset and 1/f noise. Its fully differential signal path terminates in single-ended analog outputs, each with 32 kΩ output impedance and ratiometric scaling to Vdd.
Factory-trimmed non-volatile parameters calibrate sensitivity (0.2×Vdd ±5%) and zero-g level (Vdd/2 ±6%), enabling plug-and-play operation without user calibration. Bandwidth is programmable via external load capacitance (CLOAD ≥2.5 nF), yielding cutoff frequencies from 1 Hz to 500 Hz using the formula ft = 5 µF / CLOAD(x,y,z).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-scale range | ±2 g - defines maximum measurable static/dynamic acceleration before saturation |
| Sensitivity | 0.2 × Vdd ±5% V/g - output slope per g; scales linearly with supply, enabling ratiometric ADC rejection of Vdd drift |
| Zero-g level | Vdd/2 ±6% - nominal DC output at 0 g; deviation directly impacts offset error in orientation estimation |
| Bandwidth | 2.0 kHz max - mechanical resonance limit; usable analog bandwidth set by external RC filter (Rout = 32 kΩ) |
| Self-test output ΔV | 60–700 mV per axis - electrostatic actuation-induced voltage shift confirms sensor and interface functionality in situ |
| Power-down current | 1 µA - reduces system-level standby power when motion monitoring is temporarily suspended |
| Shock survivability | 10,000 g / 0.1 ms - ensures structural integrity during board-level drop testing or mechanical handling |
Pinout & Package
LGA-16 (3×3×1.0 mm) land grid array package with exposed die pad; RoHS-compliant ECOPACK® construction, qualified per JEDEC J-STD-020C for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7, 8, 10, 12, 14 | NC | Internally not connected - must be left floating or tied to GND per layout best practice |
| 2, 15 | RES | Internal resistor connection - externally tied to Vdd to enable internal bias network |
| 4 | ST | Self-test control - logic high (≥0.8×Vdd) activates electrostatic test force; logic low enables normal operation |
| 5 | PD | Power-down control - logic high places device in ultra-low-current state (1 µA); logic low enables active mode |
| 6 | GND | Ground reference - common return for analog outputs, supply, and digital control pins |
| 9, 11, 13 | VoutZ / VoutY / VoutX | Analog outputs - single-ended ratiometric voltages proportional to acceleration on Z/Y/X axes |
| 16 | Vdd | Supply input - 2.16–3.6 V operation; powers sensing element and interface; all analog parameters scale ratiometrically |
Key Features
| Feature | Design Value |
|---|---|
| Ratiometric analog outputs | Output offset and sensitivity scale linearly with Vdd, eliminating supply-induced gain/offset errors in ADC-based systems |
| Embedded self-test | On-chip electrostatic actuation verifies sensor integrity and signal chain functionality without physical movement or external equipment |
| Programmable bandwidth | External capacitor (≥2.5 nF) on each Vout pin sets low-pass cutoff from 1 Hz to 500 Hz, optimizing SNR vs. response time per application |
| Factory-calibrated parameters | Non-volatile trimming of sensitivity and zero-g level enables immediate use without host-side calibration routines |
| High shock survivability | Withstands 10,000 g mechanical shocks, supporting reliable deployment in portable consumer devices subject to drop events |
Applications
| Tilt Sensing | Free-Fall Detection |
|---|---|
Use Scenario: Detecting angular orientation of handheld devices relative to gravity vector for UI rotation or display adjustment. IC Role / Device Role / Timing Role: Analog-output 3-axis accelerometer providing DC-coupled voltage signals proportional to gravitational projection on X/Y/Z axes. Use Value: Ratiometric zero-g level (Vdd/2 ±6%) and sensitivity (0.2×Vdd ±5%) ensure consistent tilt angle resolution across varying supply conditions. | Use Scenario: Triggering protective shutdown of hard disk drives or battery-powered storage upon sudden vertical acceleration loss. IC Role / Device Role / Timing Role: Low-latency analog acceleration monitor detecting near-zero-g condition across all three axes simultaneously. Use Value: 2.0 kHz bandwidth and <160×CLOAD+0.3 ms wake-up time from power-down enable rapid response to free-fall onset. |
| Gaming Motion Control | Anti-Theft Tilt Alarms |
Use Scenario: Translating handheld controller gestures (swipe, shake, roll) into real-time game actions via analog motion capture. IC Role / Device Role / Timing Role: High-stability analog sensor feeding dedicated ADC or microcontroller with synchronized X/Y/Z voltage streams. Use Value: ±0.01 %/°C sensitivity drift and ±0.2 mg/°C zero-g drift maintain gesture recognition accuracy across operating temperature range. | Use Scenario: Activating alarm circuits when unauthorized movement tilts or displaces secured assets (e.g., ATMs, display kiosks). IC Role / Device Role / Timing Role: Always-on or duty-cycled motion detector generating threshold-crossing signals on any axis exceeding ±2 g. Use Value: Embedded self-test (60–700 mV ΔV per axis) allows periodic functional verification without external stimulus, ensuring alarm readiness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-axis analog-output 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. 100 µg/√Hz), no embedded self-test | Lacks on-chip self-test; requires external validation of sensor health in safety-critical deployments | Select when broader supply flexibility is required and self-test is not mandated. |
| MMA7361L | Lower full-scale (±1.5 g), higher zero-g drift (±5 mg/°C vs. ±0.2 mg/°C), no power-down mode | Insufficient range for high-dynamic scenarios (e.g., drop detection); lacks ultra-low-power sleep state | Select only for cost-sensitive, low-bandwidth tilt-only applications where power budget permits continuous operation. |
Compared with ADXL335 and MMA7361L, the LIS332ARTR offers superior temperature stability, integrated self-test, and lower noise-making it preferred for motion-triggered safety functions and precision tilt measurement where long-term calibration stability matters.
Availability
LIS332ARTR is available at Aetrix Electronics and suitable for tilt sensing, free-fall detection, and motion-controlled gaming requiring stable component supply across industrial and consumer production cycles.
Supply support for LIS332ARTR 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 since 1987.
The LIS332ARTR belongs to ST's "nano" family of MEMS motion sensors-engineered for ultracompact size, low power, and analog interface simplicity in portable and battery-constrained applications.
FAQ
What is the minimum external capacitor required on each Vout pin?
A minimum 2.5 nF ceramic capacitor is required on VoutX, VoutY, and VoutZ to ensure stable operation and prevent oscillation. This value sets the lower bound for the RC filter cutoff frequency; smaller values risk violating the device's internal design constraints and may cause output instability or inaccurate bandwidth limiting.
How does the ratiometric output affect ADC interfacing?
The LIS332ARTR's output offset (Vdd/2) and sensitivity (0.2×Vdd) scale linearly with supply voltage, so using the same Vdd as the ADC reference eliminates gain and offset errors caused by supply variation. This ratiometric coupling simplifies signal chain design and improves end-system accuracy without requiring separate voltage regulation or calibration.
Can the self-test function verify sensor health after PCB assembly?
Yes-the self-test applies an electrostatic force to the MEMS structure, inducing a known DC voltage shift (60–700 mV per axis) independent of mechanical mounting stress. Measuring this shift post-assembly confirms both MEMS integrity and analog signal path functionality, including solder joint reliability and trace continuity.
What is the impact of temperature on zero-g level accuracy?
Zero-g level changes by ±0.2 mg/°C from +25 °C baseline, meaning a 60 °C temperature swing introduces up to ±12 mg of offset drift. At ±2 g full-scale, this corresponds to ~0.06% FS error-well within typical tilt-sensing requirements but relevant for high-precision inertial navigation where multi-point calibration may be needed.
LIS332ARTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-VFLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y, Z
- Acceleration Range:
- ±2g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 600
- Bandwidth:
- 2kHz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.16V ~ 3.6V
- Features:
- Adjustable Bandwidth
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-LGA (3x3)
LIS332ARTR FAQ
1.How can I place an order for LIS332ARTR through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS332ARTR 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 LIS332ARTR reliable?
The price and inventory of LIS332ARTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS332ARTR is usually 5 days.
3.What payment methods are accepted for LIS332ARTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS332ARTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS332ARTR?
LIS332ARTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS332ARTR 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 LIS332ARTR?
For technical support, including LIS332ARTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS332ARTR requirements.
6.How does Aetrix verify that LIS332ARTR is sourced from the original manufacturer or authorized distributors?
All LIS332ARTR 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 LIS332ARTR meets industry standards.
7.What is the process for return or replacement of LIS332ARTR?
All LIS332ARTR units undergo pre-shipment inspection (PSI). If there is an issue with LIS332ARTR, 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 LIS332ARTR part is unused and in its original packaging.
Return procedure for LIS332ARTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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