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Analog Devices Inc. ADXL316WBCSZ-RL
- Part No.:
- ADXL316WBCSZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Accelerometers
- Package:
- 12-LQFN Exposed Pad, CSP
- Datasheet:
-
ADXL316WBCSZ-RL.pdf
- Description:
- ACCELEROMETEREROMETER 16G ANALOG
- Quantity:
- Payment:
- Shipping:
Inventory:2,276
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Product details
Overview
ADXL316WBCSZ-RL from Analog Devices is a 3-axis MEMS accelerometer with ±16 g measurement range, ratiometric analog voltage outputs (XOUT/YOUT/ZOUT), and automotive-grade qualification (−40°C to +105°C). It features 350 µA quiescent current, 1.8 V to 3.6 V single-supply operation, and user-adjustable bandwidth via external capacitors (CX/CY/CZ) for tilt sensing, shock detection, and motion control in compact portable systems.
For engineers reviewing the ADXL316WBCSZ-RL datasheet, ADXL316WBCSZ-RL pinout, ADXL316WBCSZ-RL application, or ADXL316WBCSZ-RL equivalent, key selection criteria include its automotive temperature rating, low-power analog output architecture, self-test (ST) functionality, and LFCSP package compatibility with high-shock environments (10,000 g survival).
Technical Context
The ADXL316WBCSZ-RL implements an open-loop polysilicon surface-micromachined sensor with differential capacitive detection and phase-sensitive demodulation. Its signal conditioning includes on-chip amplifiers with ratiometric scaling to supply voltage (VS), enabling stable sensitivity (50–64 mV/g) and zero-g bias (1.2–1.8 V at VS = 3 V) across temperature.
Bandwidth is set per axis using external capacitors (CX/CY/CZ) and internal 32 kΩ filter resistors, yielding configurable −3 dB points: 0.5 Hz–1600 Hz (X/Y) and 0.5 Hz–550 Hz (Z). Self-test applies electrostatic force via ST pin, producing calibrated output shifts (e.g., +90 mV at ZOUT) for functional verification without mechanical stimulus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Measurement Range | ±16 g minimum - supports gravity-based tilt sensing and dynamic shock/vibration detection up to 10,000 g survival limit. |
| Supply Voltage | 1.8 V to 3.6 V - enables direct interface with modern low-voltage microcontrollers and battery-powered systems. |
| Quiescent Current | 350 µA typical - allows multi-year operation in coin-cell–powered wearables and remote sensors. |
| Output Type | Ratiometric analog voltage (XOUT/YOUT/ZOUT) - output scales linearly with VS, simplifying ADC reference design and reducing calibration drift. |
| Operating Temperature | −40°C to +105°C - qualified for under-hood automotive, industrial control, and harsh-environment embedded applications. |
| Package | 12-lead LFCSP (4 mm × 4 mm × 1.45 mm) - small footprint with exposed pad for thermal/mechanical stability in high-vibration mounting. |
| Noise Density | X/Y: 210 µg/√Hz rms; Z: 450 µg/√Hz rms - defines minimum detectable acceleration resolution before external filtering. |
Pinout & Package
ADXL316WBCSZ-RL uses a 12-lead Lead Frame Chip Scale Package (LFCSP_SS), 4 mm × 4 mm × 1.45 mm body with side-solderable leads and an unconnected exposed pad for mechanical integrity only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XOUT | X-axis analog output | Voltage proportional to X-acceleration (57 mV/g typ. at 3 V); requires external RC filter (CX) for bandwidth control. |
| YOUT | Y-axis analog output | Voltage proportional to Y-acceleration (57 mV/g typ. at 3 V); filtered independently via CY capacitor. |
| ZOUT | Z-axis analog output | Voltage proportional to Z-acceleration (57 mV/g typ. at 3 V); bandwidth limited by CZ, max 550 Hz. |
| ST | Self-test control input | Logic-high (≥2.7 V) activates electrostatic beam deflection; produces known output shifts (e.g., +90 mV at ZOUT). |
| COM | Analog ground reference | Low-impedance return path for all analog outputs; must be tied directly to system ground plane. |
| VS | Power supply input | 1.8–3.6 V single supply; powers sensor and signal chain; output scale factor and zero-g bias are ratiometric to VS. |
| DNC (Pins 1,4,5,7,10,11) | Do Not Connect | No internal connection; must remain floating or grounded per layout guidelines - not usable as I/O or bypass nodes. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | Qualified per AEC-Q100 Grade 2 (−40°C to +105°C), supporting safety-critical vehicle subsystems including airbag triggers and rollover detection. |
| User-configurable bandwidth | Independent per-axis filtering via CX/CY/CZ capacitors enables optimization of noise vs. response time - e.g., 50 Hz for image stabilization, 1600 Hz for impact event capture. |
| High shock survivability | 10,000 g shock rating (powered/unpowered) ensures reliability in drop-prone consumer devices and industrial machinery monitoring. |
| Ratiometric output scaling | Sensitivity and zero-g bias track VS, eliminating need for separate voltage references and reducing system-level calibration complexity. |
| Integrated self-test | Electrostatic ST activation verifies sensor functionality and signal chain integrity without external test equipment or mechanical stimulus. |
Applications
| Mobile Device Tilt Sensing | Disk Drive Crash Protection |
|---|---|
Use Scenario: Detect orientation changes in smartphones and tablets to rotate UI display and enable screen auto-rotation. IC Role / Device Role / Timing Role: ADXL316WBCSZ-RL provides static gravity vector measurement with <±1° alignment error and <1 mg/°C zero-g drift, enabling accurate tilt calculation. Use Value: Low 350 µA current draw extends battery life; ±16 g range accommodates both gentle rotation and accidental drops without saturation. |
Use Scenario: Monitor sudden free-fall events in laptop HDDs to retract read/write heads before impact. IC Role / Device Role / Timing Role: ADXL316WBCSZ-RL delivers fast turn-on time (10 ms) and high-bandwidth capability (up to 1600 Hz on X/Y axes) for sub-100 ms crash detection. Use Value: 10,000 g shock survival ensures continued operation after repeated mechanical shocks; ratiometric outputs simplify integration with existing 3.3 V logic rails. |
| Automotive Airbag Deployment Trigger | Industrial Vibration Monitoring |
Use Scenario: Sense rapid deceleration during frontal collisions to initiate airbag inflation within strict latency budgets. IC Role / Device Role / Timing Role: ADXL316WBCSZ-RL serves as primary crash sensor with −40°C to +105°C operation, meeting automotive environmental requirements and providing analog output for redundant safety MCU sampling. Use Value: Automotive qualification (ADXL316W series) guarantees production consistency and long-term reliability; self-test validates sensor health at power-up. |
Use Scenario: Measure low-amplitude vibration signatures on motors, pumps, and compressors for predictive maintenance analytics. IC Role / Device Role / Timing Role: ADXL316WBCSZ-RL captures broadband vibration (0.5–550 Hz Z-axis, 0.5–1600 Hz X/Y) with 210 µg/√Hz noise density, enabling early fault detection in rotating equipment. Use Value: Configurable bandwidth via CX/CY/CZ allows trade-off between resolution and response speed; LFCSP package withstands mounting-induced mechanical stress. |
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 |
|---|---|---|---|
| ADXL326BCPZ-RL7 | ±16 g range, but higher noise density (350 µg/√Hz X/Y), wider bandwidth (5.5 kHz), and 3.3 V fixed supply only. | Better suited for high-frequency vibration analysis; less optimal for ultra-low-power tilt sensing due to 1.2 mA current. | Select ADXL326BCPZ-RL7 when >1 kHz bandwidth is required and supply is fixed at 3.3 V. |
| MMA8452QT | I²C digital output, ±2/±4/±8 g selectable range, 12-bit resolution, 150 µA current, but no self-test or automotive qualification. | Requires host MCU with I²C interface; lacks analog simplicity and AEC-Q100 compliance for safety-critical roles. | Select MMA8452QT for cost-sensitive consumer IoT where digital interface and configurability outweigh analog fidelity and automotive grade. |
Compared with ADXL316WBCSZ-RL, ADXL326BCPZ-RL7 offers higher bandwidth at the expense of power and noise, while MMA8452QT trades analog simplicity and automotive robustness for digital flexibility and lower unit cost in non-safety applications.
Availability
ADXL316WBCSZ-RL is available at Aetrix Electronics and suitable for automotive crash sensing, industrial vibration monitoring, and portable device tilt detection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADXL316WBCSZ-RL 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADXL316W series belongs to Analog Devices' automotive-qualified MEMS accelerometer product line, designed specifically for safety-critical motion sensing in vehicles, industrial controls, and ruggedized portable electronics.
FAQ
What is the operating voltage range for the ADXL316WBCSZ-RL?
The ADXL316WBCSZ-RL operates from 1.8 V to 3.6 V DC. Its analog outputs (XOUT/YOUT/ZOUT) and zero-g bias are ratiometric to VS, meaning sensitivity scales linearly with supply voltage - e.g., 57 mV/g at 3 V becomes ~78 mV/g at 3.6 V. Quiescent current decreases with lower VS, dropping to ~300 µA at 2 V.
How does the self-test (ST) function work on the ADXL316WBCSZ-RL?
The ST pin on the ADXL316WBCSZ-RL enables electrostatic self-test: applying VS to ST generates a known deflection of the internal MEMS beam, producing calibrated output shifts - −50 mV at XOUT, +50 mV at YOUT, and +90 mV at ZOUT (typ. at 3 V). This verifies sensor functionality and signal chain integrity without external mechanical stimulus or calibration equipment.
Can the ADXL316WBCSZ-RL be used in automotive applications?
Yes - the ADXL316WBCSZ-RL is part of the ADXL316W automotive-grade series, qualified to AEC-Q100 Grade 2 (−40°C to +105°C) with controlled manufacturing and reliability testing. It is explicitly intended for automotive safety systems such as airbag deployment triggers, rollover detection, and electronic stability control, where temperature resilience and long-term stability are critical.
What package type does the ADXL316WBCSZ-RL use, and how is the exposed pad handled?
The ADXL316WBCSZ-RL uses a 12-lead LFCSP_SS package (4 mm × 4 mm × 1.45 mm) with side-solderable leads. The exposed pad is not electrically connected internally and must be soldered solely for mechanical integrity and thermal dissipation - it is not to be tied to ground or any other net per Analog Devices' pin configuration guidance.
How is bandwidth configured on the ADXL316WBCSZ-RL?
Bandwidth on the ADXL316WBCSZ-RL is set independently per axis using external capacitors CX (XOUT), CY (YOUT), and CZ (ZOUT), in conjunction with internal 32 kΩ filter resistors. The −3 dB bandwidth follows f = 1/(2π × 32 kΩ × C), allowing user-selectable ranges: 0.5–1600 Hz (X/Y) and 0.5–550 Hz (Z). Minimum recommended capacitance is 0.0047 µF.
ADXL316WBCSZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-LQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Analog
- Axis:
- X, Y, Z
- Acceleration Range:
- ±16g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 57
- Bandwidth:
- 1.6kHz (X,Y), 550Hz (Z)
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 1.8V ~ 3.6V
- Features:
- Adjustable Bandwidth, Standby Mode
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-LFCSP-SS (4x4)
ADXL316WBCSZ-RL FAQ
1.How can I place an order for ADXL316WBCSZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADXL316WBCSZ-RL 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 ADXL316WBCSZ-RL reliable?
The price and inventory of ADXL316WBCSZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADXL316WBCSZ-RL is usually 5 days.
3.What payment methods are accepted for ADXL316WBCSZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADXL316WBCSZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADXL316WBCSZ-RL?
ADXL316WBCSZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADXL316WBCSZ-RL 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 ADXL316WBCSZ-RL?
For technical support, including ADXL316WBCSZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADXL316WBCSZ-RL requirements.
6.How does Aetrix verify that ADXL316WBCSZ-RL is sourced from the original manufacturer or authorized distributors?
All ADXL316WBCSZ-RL 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 ADXL316WBCSZ-RL meets industry standards.
7.What is the process for return or replacement of ADXL316WBCSZ-RL?
All ADXL316WBCSZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADXL316WBCSZ-RL, 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 ADXL316WBCSZ-RL part is unused and in its original packaging.
Return procedure for ADXL316WBCSZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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