Product Summary

The BMA023 is a triaxial, low-g acceleration sensor IC with digital output for consumer market applications. It allows measurements of acceleration in three perpendicular axes. An evaluation circuitry converts the output of a three-channel micromechanical acceleration-sensing structure that works according to the differential capacitance principle. Package and interface have been defined to match a multitude of hardware requirements. The applications of the include Menu scrolling, Tap sensing functionality, Gaming, Pedometer, step-counting, Drop detection for warranty logging, Display profile switching, Advanced system power management for mobile applications, Shock detection.

Parametrics

BMA023 absolute maximum ratings: (1)Supply voltage, VDD and VDDIO: -0.3 to 4.25 V; (2)Storage temperature range: -50 to +150℃; (3)Duration ≤ 100μs: 10,000 g; Mechanical shock Duration ≤ 1.0ms: 2,000 g; Free fall onto hard surfaces: 1.5 m; (4)ESD HBM, at any pin: 2 kV; CDM: 500 V.

Features

BMA023 features: (1)Three-axis accelerometer; (2)Small package, LGA package; (3)Footprint 3mm x 3mm, height 0.90mm; (4)Digital interface, SPI (4-wire, 3-wire), I2C, interrupt pin; (5)Programmable functionality, g-range ±2g/±4g/±8g, bandwidth 25-1500Hz, internal acceleration evaluation for interrupt trigger, self-test; (6)Ultra-low power ASIC, Low current consumption, short wake-up time, advanced features for system power management; (7)RoHS compliant; (8)Halogen-free.

Diagrams

BMA023 block diagram