Accelerometer X, Y, Z Axis ±3g 1.6kHz (X,Y), 550Hz (Z) 16-LFCSP-LQ (4x4)
The ADXL335BCPZ-RL7 is a low-power, complete 3-axis accelerometer with analog voltage outputs proportional to acceleration. It measures acceleration along the X, Y, and Z axes with a full-scale range of ±3 g.
This device integrates a micro-electromechanical system (MEMS) sensor with signal conditioning circuitry, enabling direct analog output without the need for external amplification. The RL7 suffix indicates tape-and-reel packaging for automated assembly.
The ADXL335BCPZ-RL7 is designed for compact, battery-powered, and motion-sensitive applications where low power consumption and ease of integration are critical.
Functional Overview
The accelerometer operates using a capacitive sensing structure. Acceleration causes displacement of an internal mass, changing capacitance, which is converted into a proportional analog voltage output.
Each axis operates independently and provides a continuous analog signal that can be read by a microcontroller’s ADC. External capacitors allow the user to configure bandwidth per axis, enabling optimization for noise or response speed.
Electrical Characteristics
Supply Voltage Range:
1.8 V to 3.6 V
Supply Current:
Typical: 350 µA
Measurement Range:
±3 g
Sensitivity (Typical):
300 mV/g
Zero-g Bias Level:
Approximately VCC / 2
Bandwidth:
Adjustable via external capacitors
Typical limits:
X, Y axes: up to 1600 Hz
Z axis: up to 550 Hz
Output Characteristics
Output Type:
Analog (ratiometric to supply voltage)
Axes:
Three independent outputs (XOUT, YOUT, ZOUT)
Output Impedance:
Approximately 32 kΩ
Noise Density:
X/Y axes: ~150 µg/√Hz
Z axis: ~300 µg/√Hz
Mechanical Characteristics
Package Type:
16-lead LFCSP
Package Dimensions:
Approximately 4 mm × 4 mm × 1.45 mm
Mounting:
Surface mount
Packaging Option:
Tape and reel (RL7)
Environmental Specifications
Operating Temperature Range:
−40°C to +85°C
Storage Temperature Range:
−65°C to +150°C
Shock Survival:
Up to 10,000 g
Interface Requirements
External Components:
Capacitors required for bandwidth selection (one per axis)
Interface Type:
Analog voltage outputs compatible with ADC inputs
Pin Description (Summary)
ST: Self-test input
XOUT: X-axis analog output
YOUT: Y-axis analog output
ZOUT: Z-axis analog output
VCC: Power supply
GND: Ground
NC: No connection / reserved
Applications
Tilt and orientation sensing
Motion and vibration detection
Portable electronics
Gaming controllers
Wearable devices
Industrial monitoring systems
Key Features
Three-axis acceleration measurement
Low power consumption
Analog output for simple interfacing
Compact MEMS package
Adjustable bandwidth
Wide temperature operating range
Tape-and-reel packaging for automated manufacturing