Date: 10/06/2010

New MEMS inertial sensors from ADI for gyroscope applications

Analog Devices has added two new MEMS inertial sensors to its product line of iSensor motion sensor products. The new sensors offer tactical grade (less than 10 degrees per hour) gyroscope performance with ADI's iSensor integration and factory calibration.

The ADIS16135 iSensor precision angular rate gyro and the ADIS16385 iSensor six-degrees-of-freedom inertial measurement unit (IMU) are both based on ADI's iMEMS (integrated Micro Electro Mechanical System) inertial sensor technology cores and offer 6 degrees per hour bias stability, and angular random walk of 0.75 degrees/vhr. The sensors also offer sensitivity of 16 ppm/degrees C and bias stability to within 0.003 degrees per second over -40 to 85 degrees C. The sensors provide a simple user interface and control via a standard SPI (serial peripheral interface) and register interface. The ADIS16135 gyro and ADIS16385 IMU are suggested for a broad range of industrial and instrumentation applications including: camera stability; antenna alignment; down-hole drilling; and GPS navigation in ships, aircraft, fleet vehicles, agricultural machinery and factory robotics.

"With tactical grade gyro performance available in ADI's newest iSensor motion sensor products, complex stabilization and GPS-aided dead-reckoning is more easily enabled," said Bob Scannell, iSensor business development manager, Analog Devices. "For industrial system designers who require the highest levels of gyroscope bias accuracy in extreme environments, the ADIS16135 gyro and ADIS16385 multi-axis IMU achieve the best cost-performance ratio available today."

The ADIS16135 is a single-axis digital gyroscope with a ± 300 degrees per second measurement range, a low noise level of 0.0122 degrees per second/vhr, and operates over a wide 335-Hz bandwidth using a single 4.85-V to 5.15-V voltage supply. The device is calibrated for temperature and voltage drift and provides linear acceleration sensitivity of 0.03 degrees per second/g. It is also interface-compatible with all iSensor products, including the ADIS16385 IMU and others in the ADIS1636X series.

The ADIS16385 is a inertial measurement unit that includes a ± 300 degrees per second tri-axis gyroscope and a ±5-g tri-axis accelerometer. Tactical grade performance of 6 degrees per hour is available on the z axis gyro, with inertial grade performance provided on the x and y axis, providing a balanced price-performance solution for those applications with a primary axis of concern.

The ADIS16385 IMU and the ADIS16135 gyro contain user-configurable internal filtering and multiple condition-monitoring options.

Package:
ADIS16135 comes in a 36 mm x 44 mm x 14 mm module package.
ADIS16385 comes in a 36 mm x 47 mm x 39 mm module package.

Operating temperature range: -40° C to +105° C

Price:
ADIS16135 is priced at US$499.00 for 1000 unit quantities.
ADIS16385 is priced at US$869.00 for 1000 unit quantities.

For more information visit:
http://www.analog.com/pr/ADIS16135, http://www.analog.com/pr/ADIS16385