MEMS gyros simplify tactical industrial design

MEMS gyros simplify tactical industrial design

For extreme environments where shock, vibration, and wide temperature ranges are the norm, industrial system designs that require stabilization, navigation, or precision position measurement have typically had to rely on multiple sensor types or redundant sensors. To reduce this added system complexity and cost, two highly integrated and precise MEMS inertial sensors — the ADIS16135 iSensor precision-angular-rate, single-axis digital gyro, and the ADIS16385 iSensor six-degrees-of-freedom internal measurement unit (IMU) — combine tactical grade (

Both modules are based on integrated microelectromechanical system (iMEMS) inertial sensor technology cores and offer 6°/hr bias stability and angular random walk of 0.75°/√hr. Factory calibration results in a sensitivity of 16 ppm/°C and bias stability to within 0.003°/s over –40° to 85°C. The dynamically compensated sensors provide a simple user interface and control via a standard SPI and register interface.

The 36 x 44 x 14-mm ADIS16135 has a ± 300°/s measurement range, a noise level of 0.0122°/s/√hr, linear acceleration sensitivity of only 0.03°/s/g and operates over a 335-Hz bandwidth from a single 4.85 to 5.15-V supply. It is also interface-compatible with all iSensor products.

The 36 x 47 x 39-mm ADIS16385 includes a ± 300°/s tri-axis gyroscope and a ±5-g tri-axis accelerometer. Tactical grade performance of 6°/hr is available on the z-axis gyro, with inertial grade performance provided on the x and y axes.

Both units contain user-configurable internal filtering and multiple condition-monitoring options. (ADIS16135, $499 ea /1,000 — prod qty available now; ADIS16385, $869 ea / 1,000 — samples available now.)

Analog Devices , Wilmington , MA
Customer Service 800-262-5643
http://www.analog.com