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STMicroelectronics LIS352AR
- Part No.:
- LIS352AR
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 14-VFLGA
- Datasheet:
-
LIS352AR.pdf
- Description:
- ACCELEROMETER 2G ANALOG 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,025
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Product details
Overview
LIS352AR from STMicroelectronics is a 3-axis ±2 g analog-output MEMS accelerometer in the "piccolo" family, designed for motion sensing in space-constrained portable electronics. It delivers ratiometric analog outputs per axis (X/Y/Z), supports multiplexed single-pin output via S0/S1 control, and features embedded self-test and power-down mode. Key confirmed parameters: ±2 g full-scale range, 2.0 kHz resonant frequency, 32 kΩ output impedance, 0.145×Vdd sensitivity (±5%), and −40 to +85 °C operating temperature.
For engineers reviewing the LIS352AR datasheet, LIS352AR pinout, LIS352AR application, or LIS352AR equivalent, this page provides verified technical context, LGA-14 pin mapping, real-world use cases in free-fall detection and tilt sensing, and validated alternative options with documented functional differences.
Technical Context
The LIS352AR integrates a surface-micromachined silicon sensing element with a CMOS interface IC featuring correlated double sampling (CDS) for offset and 1/f noise cancellation. Its three independent S/H circuits feed analog outputs Voutx/Vouty/Voutz, while an on-chip multiplexer routes any channel-or Aux_in-to the shared Vout pin under S0/S1 logic control.
Output signals are ratiometric to Vdd (2.16–3.6 V), ensuring proportional scaling of zero-g level (Vdd/2 ±6%) and sensitivity (0.145×Vdd ±5%). Bandwidth is set externally via Cload ≥2.5 nF across Rout = 32 kΩ, enabling configurable low-pass filtering from 1 Hz to 2.0 kHz without requiring external op-amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-scale range | ±2 g - defines maximum measurable static/dynamic acceleration without saturation |
| Sensitivity | 0.145 × Vdd ±5% V/g - output voltage change per g, scales linearly with supply |
| Zero-g level | Vdd/2 ±6% V - nominal DC output at 0 g, ratiometric and factory-trimmed |
| Output impedance | 32 kΩ - sets RC filter corner frequency with external Cload ≥2.5 nF |
| Self-test output ΔV | 60–900 mV per axis - voltage shift when ST pin driven high, confirms sensor integrity |
| Power-down current | 1 µA - achieved by driving PD pin high; enables ultra-low-power sleep states |
| Shock survivability | 10000 g / 0.1 ms - mechanical robustness for drop-prone consumer devices |
| Operating temperature | −40 to +85 °C - qualified for industrial and extended commercial environments |
Pinout & Package
The LIS352AR is housed in a 3 mm × 5 mm × 0.9 mm plastic land grid array (LGA-14) package with 0.8 mm pitch, optimized for low-profile portable applications and compatible with standard reflow soldering per JEDEC J-STD-020C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | Internally not connected - must be left floating or grounded per layout best practice |
| 2, 14 | Reserved | Connect to Vdd - required for internal bias stability and proper operation |
| 3, 4 | S0, S1 | Mux selector inputs - binary control (00/01/10/11) to route Voutx/Vouty/Voutz/Aux_in to Vout pin |
| 5 | ST | Self-test enable - logic high applies electrostatic force to verify sensor functionality in situ |
| 6 | PD | Power-down control - logic high reduces supply current from 0.3 mA to 1 µA |
| 7–9 | Voutx, Vouty, Voutz | Independent analog outputs - each provides ratiometric voltage proportional to acceleration on respective axis |
| 10 | GND | 0 V reference - common return for supply, signals, and internal circuitry |
| 11 | Vout | Multiplexed output - carries selected channel (X/Y/Z/Aux_in) based on S0/S1 state |
| 12 | Aux_in | Auxiliary analog input - routed to Vout when S0=S1=1; enables shared ADC channel usage |
| 13 | Vdd | Supply input - accepts 2.16–3.6 V; powers both MEMS element and interface IC |
Key Features
| Feature | Design Value |
|---|---|
| Ratiometric analog outputs | Zero-g level and sensitivity scale linearly with Vdd, eliminating supply-induced errors in ADC chains |
| Embedded self-test | Electrostatic actuation on all axes produces 60–900 mV output shift-verifiable without physical movement |
| Configurable bandwidth | External capacitor (≥2.5 nF) + 32 kΩ Rout sets cut-off from 1 Hz to 2.0 kHz-no active filtering needed |
| Low-power operation | 0.3 mA active current and 1 µA power-down mode support battery-powered devices with long idle periods |
| High-shock survivability | Rated for 10000 g mechanical shock (0.1 ms pulse)-suitable for handhelds subject to frequent drops |
| LGA-14 footprint | 3×5×0.9 mm package enables compact PCB layouts while maintaining manufacturability and thermal performance |
Applications
| Free-Fall Detection | Tilt Sensing |
|---|---|
|
Use Scenario: Laptop detects sudden vertical acceleration loss during drop and triggers hard drive head parking. IC Role / Device Role / Timing Role: Analog-output 3-axis accelerometer providing real-time g-level monitoring with <100 ms response latency. Use Value: Prevents data corruption by initiating protective action before impact, leveraging 10000 g shock rating for reliability after repeated drops. |
Use Scenario: Smartphone rotates UI display based on orientation relative to gravity vector. IC Role / Device Role / Timing Role: DC-coupled motion sensor delivering stable X/Y/Z analog voltages for angle calculation. Use Value: Enables accurate tilt measurement down to 0.1° resolution using factory-trimmed zero-g level and ±5% sensitivity tolerance. |
| Gaming Input | Anti-Theft Monitoring |
|
Use Scenario: Handheld game controller interprets wrist rotation and gesture as in-game commands. IC Role / Device Role / Timing Role: Low-latency analog motion capture with 2.0 kHz bandwidth supporting fast dynamic gestures. Use Value: Delivers responsive input without digital processing delay-multiplexed Vout simplifies connection to single-channel MCU ADC. |
Use Scenario: Portable media player triggers alarm if moved beyond authorized location or tilted abnormally. IC Role / Device Role / Timing Role: Always-on motion detector using power-down mode (1 µA) between periodic wake-ups. Use Value: Extends battery life over months while maintaining tamper detection capability via self-test verification on startup. |
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 full-scale (±3 g), higher noise density (300 µg/√Hz vs. 100 µg/√Hz), no embedded self-test | Lacks integrated self-test and mux; requires separate ADC channels or external multiplexer | Choose ADXL335 only if ±3 g range is mandatory and self-test is implemented externally |
| LIS344ALH | Digital I²C/SPI output, lower power (350 µA active), no analog multiplexing, same LGA-16 package | Requires digital interface and firmware parsing; eliminates analog filtering design but adds protocol overhead | Select LIS344ALH when system already uses digital sensors and needs synchronized multi-device reads |
Compared with ADXL335 and LIS344ALH, the LIS352AR uniquely combines analog multiplexing, embedded self-test, and 10000 g shock rating in a 14-pin LGA-making it optimal for cost-sensitive, space-constrained analog-signal-chain designs requiring field-verifiable reliability.
Availability
LIS352AR is available at Aetrix Electronics and suitable for free-fall detection, tilt sensing, gaming input, and anti-theft monitoring requiring stable component supply across industrial and consumer production cycles.
Supply support for LIS352AR 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, with core expertise in MEMS, power management, microcontrollers, and automotive ICs.
The LIS352AR belongs to ST's "piccolo" family of miniaturized motion sensors-designed specifically for ultra-compact, low-power portable electronics where analog interface simplicity and mechanical ruggedness are critical.
FAQ
What is the function of the S0 and S1 pins on the LIS352AR?
S0 and S1 are binary control inputs that configure the internal multiplexer to route one of four signals-Voutx, Vouty, Voutz, or Aux_in-to the shared Vout pin. Their logic states (00, 01, 10, 11) directly select the active channel per Table 7 in the datasheet, enabling single-ADC systems to read all three axes sequentially without external hardware.
How does the ratiometric output affect system accuracy when using an ADC?
The LIS352AR's ratiometric design ensures both zero-g level (Vdd/2) and sensitivity (0.145×Vdd) scale linearly with supply voltage. When powered from the same Vdd reference used by the ADC's voltage reference, supply fluctuations cancel out-eliminating gain and offset errors in the digitized result without requiring calibration or software compensation.
Can the LIS352AR operate reliably at 2.16 V supply voltage?
Yes-the LIS352AR is fully specified down to 2.16 V (minimum Vdd). At this voltage, sensitivity becomes ~0.313 V/g (0.145×2.16), zero-g level shifts to ~1.08 V (2.16/2), and self-test ΔV reduces proportionally. All electrical characteristics-including 1 µA power-down current and 10000 g shock rating-remain valid across the full 2.16–3.6 V range.
What is the purpose of the Aux_in pin and how is it used?
Aux_in is an auxiliary analog input routed to the Vout pin when S0=S1=1. It allows the same ADC channel to sample external signals-such as temperature or battery voltage-alongside motion data, reducing component count and PCB area. The pin accepts −0.3 V to Vdd+0.3 V, with 1 kΩ series resistance limiting drive capability per the MUX specification.
LIS352AR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-VFLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y, Z
- Acceleration Range:
- ±2g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 479
- 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:
- 14-LGA (3x5)
LIS352AR FAQ
1.How can I place an order for LIS352AR through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS352AR 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 LIS352AR reliable?
The price and inventory of LIS352AR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS352AR is usually 5 days.
3.What payment methods are accepted for LIS352AR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS352AR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS352AR?
LIS352AR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS352AR 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 LIS352AR?
For technical support, including LIS352AR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS352AR requirements.
6.How does Aetrix verify that LIS352AR is sourced from the original manufacturer or authorized distributors?
All LIS352AR 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 LIS352AR meets industry standards.
7.What is the process for return or replacement of LIS352AR?
All LIS352AR units undergo pre-shipment inspection (PSI). If there is an issue with LIS352AR, 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 LIS352AR part is unused and in its original packaging.
Return procedure for LIS352AR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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