BMA020 Acceleration Sensor: Features, Specification and Datasheet

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Published: 27 April 2021 | Last Updated: 14 August 2024

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BMA020

BMA020

Bosch Sensortec

ACCELEROMETER 2-8G I2C/SPI 12LGA

Purchase Guide

ACCELEROMETER 2-8G I2C/SPI 12LGA

The BMA020 is a low-g triaxial acceleration sensor with digital interfaces that is aimed at low-power user applications.

BMA020 Description

The BMA020 is a low-g triaxial acceleration sensor with digital interfaces that is aimed at low-power user applications.

The BMA020 was created to meet a wide range of hardware specifications. The customer will program key features such as g-range and filtering characteristics. The sensor is ideal for mobile applications because it comes in a compact package and consumes very little power. The BMA020 can be customized to improve functionality and efficiency in a wide range of user applications. The suitability for cutting-edge mobile low-power designs is highlighted by the extremely low stand-by current and fast wake-up time.

The BMA020 will calculate accelerations along three perpendicular axes. The performance of a three-channel micromechanical acceleration sensing structure that operates on the differential capacitance principle is converted by an evaluation circuitry. More than 100 million Bosch accelerometers and gyroscopes have proved the capability of Bosch Sensortec's micromachining technology. The modular design methodolgy used by Bosch Sensortec allows the company to respond quickly to potential customer requests for additional sensor functionality.

BMA020 Pinout

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pinout description of BMA020:

微信截图_20210427160215.png

BMA020 Features

  • Switchable g-range and bandwidth

  • Low-power consumption

  • SPI (3-wire/4-wire) and I²C interfaces

  • Programmable interrupt feature for mobile wake-up

  • Ultra-low-power self-wake-up mode

  • Self-test capability

  • LGA package (3 mm x 3 mm x 0.9 mm)

  • RoHS compliant


Specifications

Bosch Sensortec BMA020 technical specifications, attributes, parameters and parts with similar specifications to Bosch Sensortec BMA020.
  • Type
    Parameter
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Surface Mount
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    12-VFLGA
  • Number of Pins
    12
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~85°C TA
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tape & Reel (TR)
  • Published
    2008
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Obsolete
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    1 (Unlimited)
  • Type
    Digital
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    2V~3.6V
  • Output Type

    The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.

    I2C, SPI
  • Bandwidth

    In electronic components, "Bandwidth" refers to the range of frequencies over which the component can effectively operate or pass signals without significant loss or distortion. It is a crucial parameter for devices like amplifiers, filters, and communication systems. The bandwidth is typically defined as the difference between the upper and lower frequencies at which the component's performance meets specified criteria, such as a certain level of signal attenuation or distortion. A wider bandwidth indicates that the component can handle a broader range of frequencies, making it more versatile for various applications. Understanding the bandwidth of electronic components is essential for designing and optimizing circuits to ensure proper signal transmission and reception within the desired frequency range.

    25Hz ~ 750Hz
  • Axis

    In electronic components, the parameter "Axis" typically refers to the orientation or direction along which a specific characteristic or measurement is being considered. For example, in a sensor or accelerometer, the axis may indicate the direction in which the device is measuring acceleration. In a motor or actuator, the axis may refer to the direction of movement or rotation.Understanding the axis of a component is crucial for proper installation, calibration, and operation. It helps in determining how the component will interact with other parts of a system and how its performance can be optimized. Different components may have multiple axes to consider, especially in complex systems where movement or measurements occur in multiple directions.Overall, the axis parameter provides important information about the spatial orientation or directionality of an electronic component, guiding engineers and technicians in effectively utilizing the component within a larger system.

    X, Y, Z
  • Acceleration Range

    The "Acceleration Range" parameter in electronic components refers to the range of acceleration levels that the component can withstand without experiencing damage or malfunction. This parameter is particularly important for components that are used in applications where they may be subjected to varying levels of acceleration, such as in automotive or aerospace systems. The acceleration range is typically specified in units of gravity (g) and indicates the maximum and minimum levels of acceleration that the component can tolerate while still operating within its specified performance limits. It is crucial to consider the acceleration range when selecting components for applications where acceleration levels may vary significantly to ensure reliable and safe operation.

    ±2g, 4g, 8g
  • Features

    In the context of electronic components, the term "Features" typically refers to the specific characteristics or functionalities that a particular component offers. These features can vary depending on the type of component and its intended use. For example, a microcontroller may have features such as built-in memory, analog-to-digital converters, and communication interfaces like UART or SPI.When evaluating electronic components, understanding their features is crucial in determining whether they meet the requirements of a particular project or application. Engineers and designers often look at features such as operating voltage, speed, power consumption, and communication protocols to ensure compatibility and optimal performance.In summary, the "Features" parameter in electronic components describes the unique attributes and capabilities that differentiate one component from another, helping users make informed decisions when selecting components for their electronic designs.

    Adjustable Bandwidth, Selectable Scale, Sleep Mode
  • Sensitivity (LSB/g)

    The parameter "Sensitivity (LSB/g)" in electronic components refers to the sensitivity of a sensor or device in terms of the number of least significant bits (LSBs) of output change per unit of acceleration (g). LSB is the smallest change in the digital output of a sensor. This parameter helps to quantify the resolution and accuracy of the sensor in detecting changes in acceleration. A higher sensitivity value indicates that the sensor can detect smaller changes in acceleration, while a lower sensitivity value means that larger changes in acceleration are needed to produce a noticeable output change. It is an important specification to consider when selecting a sensor for applications that require precise measurement of acceleration.

    256 (±2g) ~ 64 (±8g)
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    RoHS Compliant
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BMA020 Applications

  • Advanced power management for mobile devices

  • Drop detection for warranty logging

  • Menu scrolling, tip-tap function

  • Display profile switching (portrait/landscape)

  • Shock detection

  • Gaming

BMA020 Package

The BMA020 is packaged in a 3mm x 3mm x 0.9mm LGA package following JEDEC MO-229.

Basic outline geometry is based on:

  • Mold package footprint: 3mm x 3mm (tolerance ±0.1mm)

  • Height: 0.9mm

  • No. of leads: 12

                               - 8 used for electrical connection

                               - 2 not used / reserved

                               - 2 additional metal features on front edges without electrical functionality (not available on first engineering samples)

  • Lead pitch 0.5mm


Top, bottom and side views of the 3mm x 3mm x 0.9mm LGA package outline drawing (dimensions in mm):

微信截图_20210427155249.png

Axes orientation of the BMA020:

微信截图_20210427155358.png

Perspective view of the BMA020 relative to the PCB pattern:

微信截图_20210427155542.png


BMA020 Functions

The BMA020's function and performance can be tailored to meet the needs of individual customers using parameter and control settings. The BMA020 outputs a digital 10bit signal in either SPI or I2C format. The full measurement range can be set to 2g, 4g, or 8g via a serial interface order. To precondition the calculated acceleration signal, a second-order filter with a pole frequency of 1500Hz is included. 3KHz is the highest data conversion rate. S/N ratio can be improved with additional optical filtering (down to 25Hz bandwidth). The resolution is 4mg due to the typical noise level and quantization. 

The typical current consumption is 200A. Several features have been introduced to assist the host system in lowering power consumption. In addition to normal operation, in which acceleration values are provided to the output registers, the BMA020 can perform internal computations of the performance. The customer may specify basic parameters, such as high-g or low-g thresholds, as well as smooth motion profile recognition criteria. An interrupt pin on the sensor will alert the host system to a violation of one of these criteria. This function can be used for a variety of things, such as waking up the host system from a deep sleep or signaling a shock situation.

The BMA020 also has a self-test feature that allows you to test the entire signal evaluation course, including the micromachined sensor structure and the evaluation ASIC.

Parts with Similar Specs

Datasheet PDF

Download datasheets and manufacturer documentation for Bosch Sensortec BMA020.

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Frequently Asked Questions

What type of sensor is accelerometer?

An accelerometer is an electronic sensor that measures the acceleration forces acting on an object, in order to determine the object's position in space and monitor the object's movement.

What is the working principle of accelerometer?

The basic underlying working principle of an accelerometer is such as a dumped mass on a spring. When acceleration is experienced by this device, the mass gets displaced till the spring can easily move the mass, with the same rate equal to the acceleration it sensed.
BMA020

Bosch Sensortec

In Stock: 999

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