ADXRS401:  ±75°/s Single Chip Yaw Rate Gyro with Signal Conditioning

The ADXRS401 is a complete, angular rate-sensing gyroscope capable of measuring up to 75 degrees per second. The ADXRS401 uses Analog Devices’ iMEMS® surface micromachining process to create a ...More

ADXRS401:  ±75°/s Single Chip Yaw Rate Gyro with Signal Conditioning

Product Description

The ADXRS401 is a complete, angular rate-sensing gyroscope capable of measuring up to 75 degrees per second. The ADXRS401 uses Analog Devices’ iMEMS® surface micromachining process to create a functionally complete, low cost gyroscope, integrated with all of the required electronics on a single chip.

The ADXRS401 provides designers with a small, low cost gyroscope without compromising performance, quality, or reliability. The ADXRS401’s immunity to shock and vibration greatly improves the performance of navigation systems where environmental conditions could cause inaccurate system outputs.

The manufacturing technique for this device is the same high volume BIMOS iMEMS® process used for high reliability, automotive airbag accelerometers. The output signal, RATEOUT, is a voltage proportional to angular rate about the axis normal to the top surface of the package. A single external resistor can be used to lower the scale factor and increase dynamic range. An external capacitor is used to set the bandwidth.

A precision reference and a temperature output are also provided for compensation techniques. Two digital self-test inputs electromechanically excite the sensor to test proper operation of both sensors and the signal conditioning circuits. The ADXRS401 is available in a 7 mm x 7 mm x 3 mm BGA surface-mount package that significantly improves manufacturability.

Applications

  • Car and handheld navigation systems
  • Image stabilization for digital still and video cameras
  • Inertial measurement units
  • Platform stabilization
  • Mobile satellite antenna stabilization

    • Features

    • Complete rate gyroscope on a single chip
    • Z-axis (Yaw rate) response
    • High vibration rejection over wide frequency
    • 2000 g-powered shock survivability
    • Self-test on digital command
    • Temperature sensor output
    • Precision voltage reference output
    • Absolute rate output for precision applications
    • 5 V single-supply operation
    • Ultra small and light (<0.15cc, <0.5 gram)

    Diagrams

    ADXRS401 Diagram
    Functional Block Diagram for ADXRS401

    Specifications

    Range +/- 75 °/s
    Sensitivity 15mV/°/s
    Typical Bandwidth (kHz) 2kHz
    Noise Density (°/s/rtHz) 0.05
    Nonlinearity 0.1% of FS
    Temp Sensor Yes
    Voltage Reference Yes
    Voltage Supply (V) 4.75 to 5.25
    Supply Current (max) 6mA
    Temp Range (°C) -40 to 85°C
    Package 32-BGA

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    Temperature Range
    This is the acceptable operating range of the device. The various ranges specified are as follows:
    • Commercial: 0 to +70 degrees Celsius
    • Military : -55 to +125 degrees Celsius
    • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
    • Automotive: -40 to +125 degrees Celsius
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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.

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