Seven-Axis Motion and Pressure Sensor Fits Drone, Fitness, IoT Apps

October 31, 2017 Rich Nass

If three, four, five, or even six axes weren’t enough for you, TDK has developed the InvenSense ICM-20789 MEMS seven-axis integrated inertial device. The part combines a three-axis gyroscope, a three-axis accelerometer, and an ultra-low noise MEMS capacitive barometric pressure sensor. The ICM-20789 encompasses a single small footprint, with a low-pressure noise, just 0.4Pa RMS. In addition, excellent temperature stability is exhibited, with a temperature coefficient of ±0.5 Pa/°C.

This low temperature coefficient enables the temperature stable capacitive pressure sensor to measure pressure differences of ±1Pa, enabling the ICM-20789 to detect altitude changes of less than 5 cm. As a result, the part is well suited for drone applications, as well as wearables, navigation, and fitness/activity-monitoring products.

Housed in a 4- by 4- by 1.365-mm package, the InvenSense ICM-20789 is available immediately, as well as evaluation boards.

About the Author

Rich Nass

Richard Nass is the Executive Vice-President of OpenSystems Media. His key responsibilities include setting the direction for all aspects of OpenSystems Media’s Embedded and IoT product portfolios, including web sites, e-newsletters, print and digital magazines, and various other digital and print activities. He was instrumental in developing the company's on-line educational portal, Embedded University. Previously, Nass was the Brand Director for UBM’s award-winning Design News property. Prior to that, he led the content team for UBM Canon’s Medical Devices Group, as well all custom properties and events in the U.S., Europe, and Asia. Nass has been in the engineering OEM industry for more than 25 years. In prior stints, he led the Content Team at EE Times, handling the Embedded and Custom groups and the TechOnline DesignLine network of design engineering web sites. Nass holds a BSEE degree from the New Jersey Institute of Technology.

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