Norwood, Mass. Analog Devices, Inc. (ADI) has expanded its iSensor intelligent sensor product family with a new six-degrees-of-freedom (6 DoF) inertial sensor. The ADIS16365 inertial measurement unit (IMU) delivers an improved data interface that provides faster response times and lowers power consumption relative to other IMUs in its class, said ADI.
Designed using Analog Devices' iMEMS Motion Signal Processing Technology, the ADIS16365 IMU combines three gyroscopes and three accelerometers to provide 6 DoF motion sensing. With the aid of embedded features such as the Precision AutoNull, and a 0.05°/sec/g dynamic linear acceleration compensation factor, equipment designers can achieve in-run bias stability of 0.009°/s or better without having to perform further motion testing, ADI said.
Aimed at high-performance platform control and navigation equipment, the IMU reduces power consumption by at least 20 percent; features an approximate 10 times improvement in start-up time and improves bias stability by up to 50 percent, lowering noise sensitivities that impede navigation accuracy, ADI said. In addition to traditional industrial vehicle navigation systems, the ADIS16365's low noise and fast response time also make the device suitable for a wide range of platform stability applications such as vehicle-mounted antennas and cameras.
The IMU sensor includes a programmable serial peripheral interface (SPI) port that provides easy access to device features such as digital filtering, sample rate, power management, self-test, and sensor condition status and alarms. The sensor, smaller than a 1-inch cube, is footprint-compatible with previous generations. With only power supply and SPI connections, the device is fully in-system tunable, allowing designers to easily debug their system and experiment with different configurations for design optimization, said ADI.
The DIS16365 is factory calibrated and compensated for temperature, voltage and other sensitivities. The device includes several unique features that reduce design time and complexity, including an automatic sensor point-of-reference realignment, digital range scaling, dynamic environmental compensation, autonomous self test, and embedded sensor condition monitoring. The device leverages Analog Devices' proprietary motion and calibration testing processes to capture sensor data and alignment compensations across all three axes, which are then embedded within the IMU, along with calibration for voltage variances, temperature variances, and other influences, all of which are then dynamically compensated in-use and are transparent to the user.
The ADIS16365 is backwards compatible with other iSensor 6 DoF sensors and includes a faster data access interface, additional system I/O, a higher dynamic range accelerometer (17g), and an extended temperature range of -40°C to +105°C.
The iSensor family is supported by evaluation boards that provide access using common connectors as well as a complete PC evaluation system
The ADIS16365 was announced at Sensors Expo 2008, Rosemont, Ill., June 8-11.
Pricing: $375 per unit in quantities of 1,000. The device is housed in a compact module measuring 23 x 23 x 23 mm.
Availability: Sampling now.
Product information: ADIS16365 and iSensor tools
Analog Devices Inc., www.analog.com