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BMA020

Name: BMA020
Rating: 4.7 (12 reviews)

ACCELEROMETER 2-8G I2C/SPI 12LGA

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仕様

Part Status	Obsolete
Base Product Number	BMA020
Type	Digital
Axis	X, Y, Z
Acceleration Range	±2g, 4g, 8g
Sensitivity (LSB/g)	256 (±2g) ~ 64 (±8g)
Bandwidth	25Hz ~ 750Hz
Output Type	I2C, SPI
Voltage - Supply	2V ~ 3.6V
Features	Adjustable Bandwidth, Selectable Scale, Sleep Mode
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package	12-VFLGA
Supplier Device Package	12-LGA (3x3)
Packaging	Tape & Reel (TR)

概要

Description

Introduction to BMA020:
- What it is: A 3-axis MEMS accelerometer IC from Bosch Sensortec (BMA0x family) that measures acceleration along X, Y, and Z.
- Purpose: Used for motion sensing, orientation/tilt detection, and vibration sensing in devices like smartphones, wearables, drones, and robotics.
- Interfaces and power: Digital output via I2C or SPI; designed for low power and compact packaging.
- Configurability: Typically offers configurable full-scale range and data rate, with basic interrupt outputs to signal new data or activity.
- Packaging: Very small, suitable for compact assemblies.
- Quick use: Choose interface, power the device, configure range/data rate, then read acceleration data from the X/Y/Z registers.
- where to learn more: Refer to the BMA020 datasheet and Bosch reference designs for exact features, timing, and integration guidelines.

Package

BMA020 uses a small LGA package (no-lead), typically 2.0 × 2.0 mm with 8 pads.

Pinout

BMA020 is a 3‑axis MEMS accelerometer in a 12‑pad LGA package. Key pins/functions (typical):
- VDD / VDDIO: power supply(s)
- GND: ground
- SDA / SCL (I²C) or SDI / SDO / SCLK / CS (SPI): digital communication pins (selectable I²C or SPI interface)
- INT1 / INT2: programmable interrupt outputs (activity, click, orientation, etc.)
- SDO/ALT_ADDR: SPI data out or I²C address select (depending on package/version)
- NC / reserved pads: no-connect or internal use (layout/grounding recommended)
Primary function: measure acceleration on X, Y, Z axes and provide digital output for motion/orientation detection, tap/double‑tap, free‑fall and interrupt generation for host MCUs.

Manufacturer

The BMA020 is manufactured by Bosch Sensortec GmbH. Bosch Sensortec is a German company (a subsidiary of Robert Bosch GmbH) that designs and produces MEMS-based sensors and semiconductor solutions—primarily accelerometers, gyroscopes and related sensor ICs for consumer electronics, IoT and automotive applications.

Application

- Mobile/consumer electronics (phones, tablets): motion and orientation sensing
- Wearables and health/sports devices: activity tracking, step counting
- Gaming, AR/VR input devices: motion control and gesture detection
- Cameras and drones: stabilization and navigation
- Industrial/vibration monitoring: machine health and fault detection
- IoT/smart devices requiring inertial sensing
Note: BMA020 is a 3-axis accelerometer used for inertial sensing across these areas.

Equivalent

Equivalents to the Bosch BMA020 (3‑axis MEMS accelerometer) include Bosch BMA150/BMA180/BMA250, Analog Devices ADXL345/ADXL337, STMicroelectronics LIS3DH, NXP/Freescale MMA8452Q/MMA8652, and Kionix KX022. Verify interface (I2C/SPI), range, resolution and pinout before substituting.