SCA3400-D01 | Murata Industrial-Grade High-Performance Three-Axis Digital MEMS Accelerometer

I. What is Murata's industrial-grade high-performance three-axis digital MEMS accelerometer? It uses a self-developed capacitive 3D-MEMS process and is equipped with a dedicated ASIC signal processing chip. It features long-term zero-bias ultra-stable operation, extremely low noise, and wide-temperature vibration resistance. It is designed for high-precision industrial tilt measurement, inertial measurement, and structural monitoring applications. It is packaged in a 12-pin SMD surface mount package, has SPI digital output, and comes with hardware self-diagnostic functions. (Murata Manufacturing Co., Ltd.) II. Core Electrical/Mechanical Parameters 1. Measurement Range and Filtering (Dual Mode Optional) Mode 1: ±1.2g, 10Hz low-pass filter (preferred for high-precision static tilt angle) Mode 2: ±2.4g, 80Hz low-pass filter (preferred for dynamic vibration measurement) Resolution: 15000 LSB/g, extremely strong ability to resolve minute accelerations Output Data Rate (ODR): Up to 2000Hz 2. Noise and Stability (Core Advantages) Noise Density: 20 µg/√Hz (extremely low in the industry, accurately captures minute deformations/tilts) Zero Deviation Drift Throughout Lifetime: X/Y≤0.5mg, Z≤2mg (almost no need for periodic recalibration after factory calibration) Temperature Drift (-40~+85℃ range): X/Y≤2mg, Z≤3mg Linearity Error (±1.2g range): ≤1mg 3. Electrical Specifications Power Supply Voltage: 3.0V ~ 3.6V Communication Interface: SafeSPI 2.0 Digital interface startup time: 3ms; stable data output: 15ms. Built-in complete self-diagnostic circuit, capable of self-testing MEMS, ASIC, and short-circuit faults. 4. Package and environmental dimensions: 8.6 × 7.6 × 3.3 mm. Package: 12-pin pre-molded DFL surface mount, standard SMT reflow soldering. Operating temperature: -40℃ ~ +85℃ (industrial wide temperature range). Compliance: RoHS, ELV (Exit Vehicle Directive), lead-free and environmentally friendly. III. Scope of application (application scenarios) 1. Structural health monitoring (SHM) (main application scenario): Bridge, wind turbine tower, building, dam, tower crane deformation/vibration monitoring; long-term outdoor burial, requiring extremely high zero-point stability over many years, no need for frequent on-site calibration. 2. Tilt/leveling system: Surveying level, engineering total station, laser grader, aerial work platform, vehicle-mounted precision leveling equipment; continuous high-precision acquisition of minute tilt angles. 3. Inertial Measurement Unit (IMU): Industrial inertial navigation, robot attitude detection, UAV stabilization platform, AGV positioning assistance; combined with gyroscopes to form a six-axis inertial group. 4. Industrial Equipment Control: CNC machine tool vibration monitoring, engineering machinery attitude feedback, heavy equipment load attitude monitoring, automated production line displacement detection. 5. Positioning and Navigation: Outdoor high-precision positioning assistance, track equipment attitude monitoring, surveying mobile carrier inertial auxiliary positioning. 6. Construction/Engineering Machinery Tools: Levels, inclinometers, geological exploration inclinometers, foundation pit slope monitoring sensors. IV. Summary of Core Product Advantages: Minimal long-term zero-point drift; factory calibration lasts for the entire machine's lifespan, significantly reducing after-sales maintenance; Ultra-low noise, suitable for weak static acceleration and small tilt angle measurements; Wide temperature range + strong vibration resistance, adaptable to harsh industrial environments such as construction sites, outdoors, and wind power; Dual-range filtering mode, static/dynamic scene switching via software; Hardware self-diagnosis, facilitating online fault detection.