BMA180

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Digital
Axis:	X, Y, Z
Acceleration Range:	±1g, 1.5g, 2g, 3g, 4g, 8g, 16g
Sensitivity (LSB/g):	8192 (±1g) ~ 512 (±16g)
Sensitivity (mV/g):	--
Bandwidth:	0.2Hz ~ 1.2kHz
Output Type:	I²C, SPI
Voltage - Supply:	1.62 V ~ 3.6 V
Features:	Adjustable Bandwidth, Selectable Scale
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	12-VFLGA
Supplier Device Package:	12-LGA (3x3)

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Motion Sensors - Accelerometers

An accelerometer is a device that measures acceleration forces. Acceleration is the rate of change of velocity with respect to time. The most common type of accelerometer today is the BMA180, a 3-axis accelerometer that measures all three axes of acceleration: X, Y, and Z. These are all small, light, and fast digital accelerometers that can be utilized in a variety of applications.

BMA180 Application Fields

The BMA180 is commonly used for applications such as gaming, robotics, UAVs and drones, medical imaging, and vibration and shock monitoring. In gaming, the BMA180 can be utilized to track movement of a game controller and provide feedback to the player. For robotics, the BMA180 can be used to detect the acceleration of the robot’s movements and provide feedback for further action. Similarly, it can also be employed in drone and UAV navigation for detecting the vehicles’ accelerations in the direction of movement. Medical imaging is an application in which the BMA180 plays a role in collecting motion transformation data for further processing to generate a visual representation of that motion over time. In this case, the accelerometer is placed in a part of the body, such as the head, and its output is then translated into an image. Lastly, it can also be employed in vibration and shock analysis in order to measure the acceleration caused by a shock or vibration experienced by the device or individual.

BMA180 Working Principle

The BMA180 functions as any other accelerometer. It measures the acceleration forces by changing its capacitance based on the level of acceleration. The BMA180 consists of two capacitors with different sizes, and it works by measuring the electrical differences that occur between them as acceleration forces are applied. When the larger capacitor is subjected to an acceleration, its capacitance increases. This in turn causes the smaller capacitor to experience an electrical resonance.By measuring the electrical changes between the two capacitors, the BMA180 calculates the acceleration forces at the points of motion. The output of the BMA180 sensor is provided in the form of 16-bit digital output, which can then be further processed to identify the acceleration applied. The digital output is in the form of acceleration values in each of the three axes—X, Y, and Z. The BMA180\'s digital output is typically sent to a bus host or a microcontroller for further analysis. The microcontroller then applies a filtering process on the data received from the BMA180. This filters out the unwanted readings of acceleration values and then averages the output across all three axes. The result is the acceleration in terms of g-force, which is then used for further processing in the application. Overall, the BMA180 is an important and useful device for detecting acceleration forces. It is used in a variety of applications, from gaming to medical imaging, and is vital for the accurate detection of acceleration forces. Its capacitance based working principle makes it simple and efficient, and its digital output makes it ideal for further processing.

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