**ADXL323KCPZ: A Comprehensive Technical Overview of the Low-Power, 3-Axis MEMS Accelerometer**

The ADXL323KCPZ from Analog Devices represents a highly integrated, low-power solution for measuring acceleration across three axes. This MEMS (Micro-Electro-Mechanical Systems) accelerometer is engineered for a broad spectrum of applications, particularly those demanding precise motion sensing with minimal power consumption. Its combination of performance, small form factor, and robustness makes it a cornerstone component in modern portable and battery-operated devices.

At its core, the ADXL323KCPZ is a complete acceleration measurement system on a single, monolithic IC. It utilizes a polysilicon surface-micromachined sensor and signal conditioning circuitry to produce an analog voltage output proportional to acceleration. The device measures acceleration with a full-scale range of **±2 g**, a suitable range for detecting tilt, motion, and shock in consumer electronics and industrial applications. Its **low power consumption, typically below 350 μA**, is a defining characteristic, enabling extended battery life in portable products like medical instrumentation, personal navigation devices, and motion-activated controls.

The accelerometer's architecture is designed for simplicity and ease of integration. It features a single-supply operation from **2.4 V to 5.25 V**, enhancing its compatibility with various microcontrollers and signal processing units. Each of the three sensing channels (X, Y, and Z) provides an independent output, allowing for complex motion analysis and orientation detection. The device includes a proprietary self-test feature that applies an electrostatic force to the beam, verifying the mechanical and electrical integrity of the sensor. Furthermore, its ability to withstand high shock levels (10,000 g) underscores its mechanical durability.

A critical aspect of the ADXL323KCPZ is its signal conditioning. The output from the MEMS sensor is amplified and brought out through a 32kΩ resistor, allowing users to easily set the signal bandwidth—from 0.5 Hz to 2.5 kHz—using a simple capacitor. This programmability provides designers with the flexibility to tailor the device's response to the specific needs of their application, optimizing it for either low-frequency static acceleration (like tilt) or higher-frequency dynamic acceleration (like vibration or shock).

Housed in a compact **5 mm × 5 mm × 1.45 mm LFCSP (Lead Frame Chip Scale Package)**, the ADXL323KCPZ is ideal for space-constrained PCB designs. Its small size and low weight minimize its impact on the overall system while providing critical motion data. Typical applications extend beyond consumer gadgets to include **tilt sensing in industrial equipment, impact logging in transportation systems, and vibration monitoring in asset health tracking**.

**ICGOODFIND**: The ADXL323KCPZ stands out as a premier low-power, 3-axis analog accelerometer. Its optimal blend of a ±2 g range, ultra-low current draw, flexible bandwidth control, and robust construction in a miniature package makes it an exceptionally versatile and reliable choice for designers tackling the challenges of motion sensing in power-sensitive and compact electronic systems.

**Keywords**: Low-Power, MEMS Accelerometer, 3-Axis, Analog Output, Shock Resistant