Analog Devices Inc. ADXL1001BCPZ-RL

Overview

ADXL1001BCPZ-RL from Analog Devices is a single-axis, high-frequency MEMS accelerometer with analog output, optimized for industrial condition monitoring. It delivers ±100 g full-scale range, 30 µg/√Hz noise density, and linear frequency response from DC to 11 kHz (3 dB), enabling precise vibration measurement in rotating machinery health diagnostics.

For engineers reviewing the ADXL1001BCPZ-RL datasheet, ADXL1001BCPZ-RL pinout, ADXL1001BCPZ-RL application, or ADXL1001BCPZ-RL equivalent, key selection criteria include its ratiometric analog output, 21 kHz resonant frequency, −40°C to +125°C operating range, standby recovery time <50 µs, and LFCSP-32 package compatibility with high-bandwidth PCB mounting requirements.

Technical Context

The ADXL1001BCPZ-RL integrates a polysilicon surface-micromachined proof mass suspended by springs, with differential capacitive sensing and phase-sensitive demodulation for analog voltage output proportional to acceleration. Its signal path includes a ratiometric output amplifier with <0.1 Ω output impedance and 70 kHz small-signal bandwidth.

It operates in two modes: continuous measurement mode (1.0 mA typical supply current) and standby mode (225 µA typical), with active-high ST and STANDBY inputs and an open-drain OR output that flags overrange events (>2× full-scale). The device features integrated electrostatic self-test and dc-coupled output with VDD/2 zero-g offset.

Key Specifications

Pinout & Package

ADXL1001BCPZ-RL uses a 5 mm × 5 mm × 1.80 mm LFCSP-32 package with exposed EPAD (Pin 33) requiring ground connection. Pin count and terminal functions are validated per Analog Devices Rev. A datasheet Figure 3 and Table 5.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-frequency analog accelerometer applications.

Compared with ADXL1001BCPZ-RL, ADXL1002BCPZ-RL offers lower noise but half the range, while PCB 352C33 provides higher output level and ruggedness but demands external power and lacks onboard self-test or standby mode - making ADXL1001BCPZ-RL uniquely suited for autonomous, embedded condition monitoring.

Availability

ADXL1001BCPZ-RL is available at Aetrix Electronics and suitable for condition monitoring, predictive maintenance, and test & measurement applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for ADXL1001BCPZ-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, serving industrial, automotive, communications, and healthcare markets.

The ADXL1001BCPZ-RL belongs to Analog Devices' high-frequency MEMS accelerometer product line, engineered specifically for industrial machine health monitoring with emphasis on ultralow noise, wide bandwidth, and robust operation in harsh thermal environments.

FAQ

What is the full-scale measurement range of the ADXL1001BCPZ-RL?

The ADXL1001BCPZ-RL has a full-scale measurement range of ±100 g. This range is fixed and specified per the Analog Devices datasheet Rev. A, enabling reliable capture of high-amplitude shocks and vibrations in industrial rotating equipment without clipping. Its performance remains stable up to 10,000 g powered shock survivability.

How does the ratiometric output of the ADXL1001BCPZ-RL affect system design?

The ADXL1001BCPZ-RL output voltage is ratiometric to VDD, meaning both sensitivity (20 mV/g) and zero-g offset (VDD/2) scale linearly with supply voltage. When paired with an ADC using the same VDD as reference, supply tolerance and temperature drift cancel - eliminating need for precision voltage references and simplifying analog front-end design in the ADXL1001BCPZ-RL signal chain.

What is the purpose of the OR (Overrange) pin on the ADXL1001BCPZ-RL?

OR (Pin 20) is an open-drain output that asserts during acceleration events exceeding approximately 200 g (2× full-scale). It is not latched and reflects real-time overload status. Internally, the 200 kHz clock disables for 200 µs upon detection to protect the MEMS structure - making the OR pin essential for implementing hardware-level fault response in safety-critical ADXL1001BCPZ-RL deployments.

Can the ADXL1001BCPZ-RL operate at temperatures up to +125°C?

Yes, the ADXL1001BCPZ-RL is fully specified and qualified for continuous operation from −40°C to +125°C ambient temperature. Its sensitivity stability (±5% over temperature), low-drift zero-g offset, and robust LFCSP package make it suitable for direct mounting on hot industrial surfaces such as motor windings, gearboxes, and compressor housings without derating.

What is the function of the STANDBY pin on the ADXL1001BCPZ-RL?

The STANDBY pin (Pin 15) is an active-high control input that places the ADXL1001BCPZ-RL into low-power standby mode, reducing supply current from 1.0 mA to 225 µA. Recovery to full measurement accuracy takes less than 50 µs, enabling energy-efficient burst-mode acquisition in battery-powered wireless sensors using the ADXL1001BCPZ-RL.