Today's blog will discuss the accelerometers, e-compasses, and gyroscopes found in today's smart devices. Since July 2012, Teardown.com has published 83 Deep Dive teardown analyses in our Mobile Devices channel. These reports cover phones, tablets, laptops, and other devices. In our research, we seek a broad sample of devices across manufacturers, price tiers, and markets.
Of this sampling of devices, the number of units and percent of sample in which these functions were observed can be seen in Bable 1.
Clearly, accelerometers and compasses have a quantitative edge over gyroscopes, but we are seeing more frequently the combination of accelerometer and gyroscope in one package. To a small degree, we are also seeing the combination of accelerometer and e-compasses in single packages.
The current players in the accelerometer field are Bosch Sensortec, STMicroelectronics, Invensense, Rohm Kionix, and Freescale. The top three parts in the sample are the Invensense MPU-6050 (10 observations), Bosch Sensortec BMA250 (8), and Bosch Sensortec BMA255 (7). Those parts are mature parts (having first been seen in mid-2012), and it appears that the first two are at or near the end of life.
We expect the Bosch Sensortec BMI055 to become a significant player along with the Invensense MPU-6500 and STMicroelectronics LSM3xx series of parts. All of these upcoming parts combine an accelerometer and a gyroscope. Table 2 contains a list of manufacturers and their prevalence.