Analog Devices Inc. ADXL335BCPZ-RL

Overview

ADXL335BCPZ-RL from Analog Devices is a complete 3-axis MEMS accelerometer with ratiometric analog voltage outputs, designed for tilt and motion sensing in low-power embedded systems. It delivers ±3 g full-scale range, 350 μA typical supply current, and user-configurable bandwidth (0.5 Hz–1600 Hz) via external capacitors on XOUT/YOUT/ZOUT pins. It operates from 1.8 V to 3.6 V and features excellent temperature stability for gravity-referenced orientation detection in portable electronics.

For engineers reviewing the ADXL335BCPZ-RL datasheet, ADXL335BCPZ-RL pinout, ADXL335BCPZ-RL application, or ADXL335BCPZ-RL equivalent, key selection criteria include its ratiometric output scaling, self-test functionality, 16-lead LFCSP package footprint, and bandwidth configurability per axis using CX/CY/CZ capacitors - critical for anti-aliasing and noise optimization in battery-powered sensor nodes.

Technical Context

The ADXL335BCPZ-RL implements an open-loop polysilicon surface-micromachined sensor with differential capacitive detection and phase-sensitive demodulation. Its signal chain includes on-chip amplification followed by a fixed 32 kΩ output impedance, enabling bandwidth control via external RC filters at each output pin.

Each axis output (XOUT/YOUT/ZOUT) is ratiometric to VS, with zero-g bias centered near VS/2 and sensitivity of 300 mV/g (typ) at 3 V. The ST pin enables electrostatic self-test, producing calibrated output shifts (e.g., −325 mV on XOUT) without mechanical stimulus - confirming sensor integrity and signal path functionality.

Key Specifications

Pinout & Package

The ADXL335BCPZ-RL is housed in a 4 mm × 4 mm × 1.45 mm, 16-lead plastic lead frame chip scale package (LFCSP_LQ) with exposed pad for mechanical anchoring. Pin 1 is marked by a dot; the exposed pad is not electrically connected but must be soldered for board-level reliability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-axis analog-output accelerometer applications.

Compared with ADXL335BCPZ-RL, the ADXL326BCPZ-RL7 offers double the measurement range at the cost of higher noise, while the MMA8452QT replaces analog flexibility with digital intelligence and lower power - making the ADXL335BCPZ-RL optimal for analog-signal-chain architectures requiring ratiometric precision and bandwidth tuning.

Availability

ADXL335BCPZ-RL is available at Aetrix Electronics and suitable for mobile device tilt detection, disk drive free-fall protection, gaming controller motion sensing, sports activity tracking, and image stabilization requiring stable component supply across production volumes.

Supply support for ADXL335BCPZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADXL335BCPZ-RL belongs to Analog Devices' precision MEMS accelerometer product line, engineered for cost-sensitive, low-power applications demanding reliable gravity and motion sensing without digital interface complexity.

FAQ

What is the supply voltage range for the ADXL335BCPZ-RL?

The ADXL335BCPZ-RL operates from 1.8 V to 3.6 V DC. Its analog outputs are ratiometric to VS, meaning sensitivity scales linearly with supply voltage (e.g., 300 mV/g at 3 V, ~360 mV/g at 3.6 V). Supply current decreases proportionally - from 375 μA at 3.6 V to 200 μA at 2 V - supporting flexible power architecture design in the ADXL335BCPZ-RL.

How does the self-test function work on the ADXL335BCPZ-RL?

The ST pin on the ADXL335BCPZ-RL activates an electrostatic self-test when driven to VS. This induces a known mechanical deflection, producing predictable output shifts: −325 mV on XOUT, +325 mV on YOUT, and +550 mV on ZOUT (at 3 V). These values scale cubically with VS, enabling functional verification of both sensor and signal chain without external stimulus - a key diagnostic capability built into the ADXL335BCPZ-RL.

Can the ADXL335BCPZ-RL measure static tilt accurately over temperature?

Yes. The ADXL335BCPZ-RL achieves ±1 mg/°C zero-g offset drift and ±0.01 %/°C sensitivity drift, enabling stable gravity-referenced tilt measurement across −40°C to +85°C. Its ratiometric architecture ensures zero-g bias remains near VS/2 regardless of supply variation, and factory alignment errors (<±0.1° interaxis) minimize cross-axis coupling - all critical for repeatable tilt accuracy in the ADXL335BCPZ-RL.

What external components are required for basic operation of the ADXL335BCPZ-RL?

For basic operation, the ADXL335BCPZ-RL requires only a 0.1 μF ceramic decoupling capacitor (CDC) placed close to the VS pins and connection of all COM pins to a low-impedance analog ground. Bandwidth-setting capacitors (CX/CY/CZ) are optional but recommended for anti-aliasing; minimum 0.0047 μF is advised. No external op-amps or level-shifting circuitry is needed due to the ADXL335BCPZ-RL's rail-to-rail compatible output swing (0.1 V to 2.8 V at 3 V).

Is the ADXL335BCPZ-RL RoHS compliant and what is its package type?

Yes, the ADXL335BCPZ-RL is RoHS/WEEE lead-free compliant and packaged in a 4 mm × 4 mm × 1.45 mm, 16-lead LFCSP_LQ (CP-16-14) with exposed pad. The exposed pad is not electrically connected but must be soldered to the PCB for mechanical integrity. This compact, low-profile package supports high-density layouts while maintaining thermal and mechanical stability - a defining physical characteristic of the ADXL335BCPZ-RL.