ADXL362BCCZ‑RL7 Complete Datasheet Summary

1. Basic Device Information

• Part Number: ADXL362BCCZ‑RL7
• Device Type: Ultralow‑Power, 3‑Axis Digital MEMS Accelerometer
• Manufacturer: Analog Devices Inc.
• Document Revision: Rev. G
• Package: 16‑Terminal LGA (3 mm × 3.25 mm × 1.06 mm), CC‑16‑4
• Packaging: Tape‑and‑Reel, 1500 units per reel
• RoHS Status: Compliant (marked by “Z” suffix)
• Temperature Range: Industrial, −40°C to +85°C
• Key Features: Micropower, motion wake‑up, FIFO, SPI interface, integrated temperature sensor

2. Key Features

• Ultralow power consumption:
• High resolution: 1 mg/LSB (±2 g range)
• Selectable measurement ranges: ±2 g / ±4 g / ±8 g
• Low noise: down to 175 µg/√Hz (ultra‑low‑noise mode)
• Wide supply & I/O voltage: 1.6 V to 3.5 V
• Built‑in FIFO: 512‑sample deep buffer
• Autonomous activity/inactivity detection with interrupts
• Integrated temperature sensor
• SPI digital interface (4‑wire)
• External synchronization & clock input
• Small, thin LGA package

3. Typical Applications

• Hearing aids & home healthcare devices
• Motion‑activated power‑save switches
• Wireless sensors & battery‑powered systems
• Motion metering & industrial monitoring
• Fall detection & motion logging

4. Pin Configuration (16‑Terminal LGA, Top View)

5. Absolute Maximum Ratings

• Supply voltage (VS): −0.3 V to +3.6 V
• I/O supply (VDD I/O): −0.3 V to +3.6 V
• Acceleration (powered/unpowered): 5000 g
• ESD: 2000 V (HBM)
• Storage temperature: −50°C to +150°C
• Soldering: 260°C peak (Pb‑free reflow)

6. Recommended Operating Conditions

• Supply voltage (VS): 1.6 V to 3.5 V
• I/O supply (VDD I/O): 1.6 V to 3.5 V
• Operating temperature: −40°C to +85°C
• Output data rate: 12.5 Hz to 400 Hz
• Measurement ranges: ±2 g, ±4 g, ±8 g

7. Key Electrical Specifications (TA = 25°C, VS = 2.0 V)

Power

• Normal operation: 1.8 µA @ 100 Hz
• Wake‑up mode: 270 nA
• Standby: 10 nA

Performance

• Resolution: 12 bits (1 mg/LSB @ ±2 g)
• Noise density: 550 µg/√Hz (normal), 175 µg/√Hz (ultra‑low‑noise)
• Sensitivity: 1000 LSB/g (±2 g), 500 LSB/g (±4 g), 250 LSB/g (±8 g)
• Bandwidth: Programmable (ODR/2 or ODR/4)

Temperature Sensor

• Sensitivity: 0.065 °C/LSB
• Resolution: 12 bits

8. Functional Description

• Operating Modes:
• Sensing: 3‑axis MEMS capacitive sensing
• Signal Path: 12‑bit ADC, antialiasing filters
• FIFO: 512‑sample buffer (stream, oldest‑saved, triggered modes)
• Motion Detection:
• Communication: 4‑wire SPI (CPHA = CPOL = 0, up to 8 MHz)

9. Protection & Features

• Self‑test: Electrostatic actuation verifies mechanical & electronic paths
• SEU protection: Error correction for critical registers
• Bus keepers: Prevent floating inputs
• Thermal shutdown: Over‑temperature protection
• Fail‑safe: Default high‑Z interrupt pins

10. Package & Ordering

• Part: ADXL362BCCZ‑RL7
• Package: 16‑LGA (3 × 3.25 × 1.06 mm)
• Temperature: −40°C to +85°C
• RoHS compliant
• Quantity: 1500 per reel
• Marking: 362B

11. Thermal Information (LGA)

• Junction‑to‑ambient thermal resistance (θJA): 150°C/W
• Junction‑to‑case thermal resistance (θJC): 85°C/W
• Weight: 18 mg

12. Layout & Design Guidelines

• Decouple VS and VDD I/O with 0.1 µF ceramic caps close to pins
• Mount near rigid PCB mounting points to reduce vibration errors
• Keep SPI lines short; minimize noise on power & ground
• Follow recommended LGA land pattern