Accelerometer X, Y, Z Axis ±3g 1.6kHz (X,Y), 550Hz (Z) 16-LFCSP-LQ (4x4)

The ADXL335BCPZ is a small, thin, low-power, complete 3-axis accelerometer with signal-conditioned voltage outputs. It measures acceleration with a minimum full-scale range of ±3 g. The device outputs analog voltages proportional to acceleration in each of the three orthogonal axes (X, Y, and Z).

The accelerometer is designed for low power consumption and high resolution, making it suitable for mobile devices, tilt sensing, motion detection, and vibration monitoring. It operates over a wide temperature range and requires minimal external components, enabling easy integration into compact systems.

Functional Overview

The ADXL335 uses a capacitive sensing structure to detect acceleration. Changes in acceleration result in differential capacitance changes, which are converted into voltage outputs through an internal signal conditioning circuit. Each axis provides an independent analog output that can be directly interfaced with ADC inputs of microcontrollers or other processing units.

Bandwidth for each axis can be adjusted using external capacitors, allowing flexibility depending on application requirements.

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 mid-supply voltage

Bandwidth: User-selectable via external capacitors Typical range: X, Y axes: up to 1600 Hz Z axis: up to 550 Hz

Output Characteristics

Output Type: Analog voltage (ratiometric to supply voltage)

Number of Axes: Three (X, Y, Z)

Output Noise: Low noise suitable for precision motion sensing

Cross-Axis Sensitivity: Typically ±1%

Mechanical Characteristics

Package Type: 16-lead LFCSP (Lead Frame Chip Scale Package)

Dimensions: Approximately 4 mm × 4 mm × 1.45 mm

Mounting: Surface mount

Environmental Specifications

Operating Temperature Range: −40°C to +85°C

Shock Survivability: Up to 10,000 g

Interface Requirements

External Components: Requires capacitors for bandwidth setting (one per axis)

Output Interface: Direct analog output compatible with ADC inputs

Applications

Mobile devices and handheld electronics Tilt and orientation sensing Vibration monitoring systems Gaming and motion input devices Industrial instrumentation Wearable electronics

Key Features

Low power consumption Compact form factor High resolution analog outputs User-adjustable bandwidth Wide operating temperature range Simple integration with minimal external components

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