**ADXL001-250BEZ: A Comprehensive Technical Overview of the ±250g MEMS Accelerometer**

The **ADXL001-250BEZ** from Analog Devices represents a significant achievement in high-g microelectromechanical systems (MEMS) accelerometer design. Engineered for extreme environments, this single-axis accelerometer delivers robust performance where conventional sensors would fail, making it a critical component in aerospace, automotive testing, and industrial applications.

At its core, the device utilizes a sophisticated **MEMS polysilicon surface-micromachined sensor** and integrated signal conditioning circuitry. The architecture is based on a differential capacitor structure that deflects under acceleration. This deflection unbalances the capacitor, and the resulting output is demodulated to produce a voltage signal proportional to the applied force. This advanced design ensures highly reliable and precise measurement of dynamic shocks and vibrations.

A defining characteristic of the ADXL001-250BEZ is its remarkably **wide measurement range of ±250g**. This high-g capability allows it to accurately capture and quantify extreme acceleration events, from the intense forces of an automotive crash test to the violent vibrations in machinery health monitoring. The accelerometer offers a user-selectable bandwidth, which can be set via external capacitors to values up to 10 kHz (for the ±250g range), providing the flexibility to tailor the sensor's response to the specific frequency content of the event being measured.

The output of the ADXL001-250BEZ is an analog voltage ratiometric to the supply voltage, simplifying interface with analog-to-digital converters (ADCs). It operates from a single **+5.0 V supply voltage** and is designed for high stability and low drift over temperature. Housed in a hermetically sealed, robust 15-pin ceramic side-brazed dual in-line package (DIP), the device is built to withstand the mechanical stresses of harsh operating environments.

Key performance specifications include a low noise floor, excellent cross-axis rejection, and a strong **overload survivability rating of ±5000g**. This means the sensor can not only measure events up to ±250g but also endure non-operational shocks far beyond its measurement range without damage, a crucial feature for real-world deployments where unexpected spikes can occur.

**ICGOOODFIND**: The ADXL001-250BEZ stands out as a premier solution for high-g acceleration measurement, combining a robust MEMS core with flexible signal conditioning. Its exceptional range, bandwidth options, and **proven reliability under extreme conditions** make it an indispensable tool for engineers tackling the most demanding testing and monitoring challenges.

**Keywords**: High-g MEMS Accelerometer, ±250g Range, Analog Voltage Output, Shock and Vibration Measurement, Overload Survivability.