Analog Devices introduces inertial sensors

An Analog Devices product story
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Edited by the Electronicstalk editorial team Nov 19, 2008

Analog Devices (ADI) is expanding its Isensor product range with two inertial sensors for sophisticated motion and navigation control in a broader range of applications.

The ADIS16405 six-degrees-of-freedom (6DoF) inertial measurement unit (IMU) combines high-performance, simplicity and a tri-axis magnetometer sensor for improved heading accuracy.

The ADIS16300 four-degrees-of-freedom (4DoF) IMU is offered at a price that is up to 10-times less than other products in its class.

'The ADIS16405, which offers pre-calibrated and pre-aligned inertial and magnetic sensors, simplifies the process of implementing full IMU sensor functionality,' said Bob Scannell, business development manager, Isensor intelligent sensor products, Analog Devices.

Designed using Imems Motion Signal Processing Technology, the ADIS16405 complete inertial sensing system integrates a three-axis gyroscope, magnetometer and accelerometer.

The embedded magnetometer provides accurate heading to complement the product's response levels and short-term stability.

Unlike many IMUs, which offer a lower level of integration and require a high degree of user calibration, all necessary motion testing and calibration for the ADIS16405 is performed at the factory.

This means that system integration time is reduced and customer implementation is as simple as supplying power and connecting an SPI (serial peripheral interface) port.

The ADIS16405 features 0.05deg rate-sensor orthogonal-alignment accuracy, which the company said improves overall system accuracy and simplifies end-system design.

The magnetometer sensors are calibrated and aligned to the inertial sensor axis.

All sensors are accessible over a standard SPI interface, which also allows control of internal digital filtering.

The ADIS16300 complete inertial sensing system integrates a single-axis gyroscope and a three-axis accelerometer.

Each sensor in the ADIS16300 combines ADI's Imems technology with signal conditioning that optimises dynamic performance.

The factory calibration characterises each sensor for sensitivity, bias, alignment and linear acceleration.

As a result, each sensor has its own dynamic compensation that results in accurate sensor measurements over the specified power supply range of 4.75V to 5.25V.

As with the ADIS16405, factory calibration of the ADIS16300 reduces system integration time and test equipment costs.

Similar to the ADIS16405, the ADIS16300 features an improved SPI interface to provide faster data collection and configuration control.

Angular rate sensing can be selected for +/-75, +/-150, and +/-300 deg/sec dynamic range, with +/-3G tri-axis acceleration dynamic range.

The device offers a 350Hz bandwidth, and up to 1,200 SPS sample rates, with further digital filtering embedded and programmable.

The ADIS16300 and ADIS16405 are compatible with other Isensor multi-axis inertial sensors, which include the ADIS16365, ADIS16364, ADIS16355, ADIS16354 and ADIS16350.

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