The ADXRS646 is a high performance angular rate sensor(gyroscope) that offers excellent vibration immunity. Biasstability is a widely-recognized figure of merit for highperformance gyroscopes, but in real-world applications,vibration sensitivity is often a more significant performancelimitation and should be considered in gyroscope selection. TheADXRS646 offers superior vibration immunity and accelerationrejection as well as a low bias drift of 12°/hr (typical), enabling itto offer rate sensing in harsh environments where shock andvibration are present.The ADXRS646 is manufactured using the Analog Devices,Inc., patented high volume BiMOS surface-micromachiningprocess. An advanced, differential, quad sensor design providesthe improved acceleration and vibration rejection. The outputsignal, RATEOUT, is a voltage proportional to angular rateabout the axis normal to the top surface of the package. Themeasurement range is a minimum of ±250°/sec. The output isratiometric with respect to a provided reference supply. Otherexternal capacitors are required for operation.A temperature output is provided for compensation techniques.Two digital self-test inputs electromechanically excite the sensorto test proper operation of both the sensor and the signal conditioningcircuits.The ADXRS646 is available in a 7 mm × 7 mm × 3 mm CBGAchip-scale package.APPLICATIONS Industrial applications Severe mechanical environments Platform stabilization

The AD590 is a 2-terminal integrated circuit temperature trans-ducer that produces an output current proportional to absolute temperature. For supply voltages between 4 V and 30 V, the device acts as a high impedance, constant current regulator passing 1 μA/K. Laser trimming of the chip’s thin-film resistors is used to calibrate the device to 298.2 μA output at 298.2 K (25°C).The AD590 should be used in any temperature-sensing application below 150°C in which conventional electrical temperature sensors are currently employed. The inherent low cost of a monolithic integrated circuit combined with the elimination of support circuitry makes the AD590 an attractive alternative for many temperature measurement situations. Linearization circuitry, precision voltage amplifiers, resistance measuring circuitry, and cold junction compensation are not needed in applying the AD590.In addition to temperature measurement, applications include temperature compensation or correction of discrete components, biasing proportional to absolute temperature, flow rate measurement, level detection of fluids and anemometry. The AD590 is available in die form, making it suitable for hybrid circuits and fast temperature measurements in protected environments.The AD590 is particularly useful in remote sensing applications. The device is insensitive to voltage drops over long lines due to its high impedance current output. Any well-insulated twisted pair is sufficient for operation at hundreds of feet from the receiving circuitry. The output characteristics also make the AD590 easy to multiplex: the current can be switched by a CMOS multiplexer, or the supply voltage can be switched by a logic gate output.PRODUCT HIGHLIGHTS The AD590 is a calibrated, 2-terminal temperature sensor requiring only a dc voltage supply (4 V to 30 V). Costly transmitters, filters, lead wire compensation, and linearization circuits are all unnecessary in applying the device. State-of-the-art laser trimming at the wafer level in conjunction with extensive final testing ensures that AD590 units are easily interchangeable. Superior interface rejection occurs because the output is a current rather than a voltage. In addition, power requirements are low (1.5 mW @ 5 V @ 25°C). These features make the AD590 easy to apply as a remote sensor. The high output impedance (>10 MΩ) provides excellent rejection of supply voltage drift. For instance, changing the power supply from 5 V to 10 V results in only a 1 μA maximum current change, or 1°C equivalent error. The AD590 is electrically durable: it withstands a forward voltage of up to 44 V and a reverse voltage of 20 V. Therefore, supply irregularities or pin reversal does not damage the device.

The ADIS16490 is a complete inertial system that includes a triaxis gyroscope and a triaxis accelerometer. Each inertial sensor in the ADIS16490 combines industry leading iMEMS® technology with signal conditioning that optimizes dynamic performance. The factory calibration characterizes each sensor for sensitivity, bias, alignment, and linear acceleration (gyroscope bias). As a result, each sensor has its own dynamic compensation formulas that provide accurate sensor measurements.The ADIS16490 provides a simple, cost effective method for integrating accurate, multiaxis inertial sensing into industrial systems, especially when compared with the complexity and investment associated with discrete designs. All necessary motion testing and calibration are part of the production process at the factory, greatly reducing system integration time. Tight orthogonal alignment simplifies inertial frame alignment in navigation systems. The SPI and register structure provide a simple interface for data collection and configuration control.The ADIS16490 uses the same footprint and connector system as the ADIS16375, ADIS16480, ADIS16485, and ADIS16488A, which greatly simplifies the upgrade process. The ADIS16490 is packaged in a module that is approximately 47 mm × 44 mm × 14 mm and includes a standard connector interface.Applications Precision instrumentation, stabilization Guidance, navigation, control Avionics, unmanned vehicles Precision autonomous machines, robotics

The analog output ADXL354 and the digital output ADXL355 are low noise density, low 0 g offset drift, low power, 3-axisaccelerometers with selectable measurement ranges. TheADXL354B supports the ±2 g and ±4 g ranges, the ADXL354Csupports the ±2 g and ±8 g ranges, and the ADXL355 supports the ±2 g, ±4 g, and ±8 g ranges. The ADXL354/ADXL355 offerindustry leading noise, minimal offset drift over temperature,and long-term stability enabling precision applications with minimal calibration.Highly integrated in a compact form factor, the low powerADXL355 is ideal in an Internet of Things (IoT) sensor nodeand other wireless product designs.The ADXL355 multifunction pin names may be referenced by their relevant function only for either the serial peripheralinterface (SPI) or I2C interface.Applications Inertial measurement units (IMUs)/altitude and heading reference systems (AHRS) Platform stabilization systems Structural health monitoring Seismic imaging Tilt sensing Robotics Condition Monitoring

The ADA4571 is an anisotropic magnetoresistive (AMR) sensorwith integrated signal conditioning amplifiers and ADC drivers.The ADA4571 produces two analog outputs that indicate theangular position of the surrounding magnetic field.The ADA4571 consists of two die within one package, an AMRsensor, and a fixed gain (G = 40 nominally) instrumentationamplifier. The ADA4571 delivers clean and amplified cosineand sine output signals related to the angle of a rotatingmagnetic field. The output voltage range is ratiometric to thesupply voltage.The sensor contains two Wheatstone bridges, at a relative angleof 45° to one another. A rotating magnetic field in the x-ysensor plane delivers two sinusoidal output signals with thedouble frequency of the angle (α) between sensor and magneticfield direction. Within a homogeneous field in the x-y plane,the output signals are independent of the physical placement inthe z direction (air gap).The ADA4571 is available in an 8-lead SOIC package.Product Highlights Contactless angular measurement. Measures magnetic field direction rather than field intensity. Minimum sensitivity to air gap variations. Large working distance. Excellent accuracy, even for weak saturation fields. Minimal thermal and lifetime drift. Negligible hysteresis. Single chip solution.Applications Absolute position measurement (linear and angle) Brushless dc motor control and positioning Actuator control and positioning Contactless angular measurement and detection Magnetic angular position sensing

Gyroscopes High Precision Calibrated Gyro

Integrated AMR Angle Sensor and Signal Conditioner with Differential Outputs Features: Contactless angular measurement High precision 180° angle sensor Typical angular error of ±0.1° Low output noise of 850 μV rms Sine and cosine differential outputs Ratiometric analog voltage outputs Negligible hysteresis SAR or Σ-Δ ADC compatible Temperature compensated AMR bridge Industrial temperature range: −40°C to +125°C Automotive temperature range: −40°C to +150°C EMI resistant Fault diagnostics VDD from 2.7 V to 5.5 V Minimal phase error of 0.85° at 30,000 rpm AEC-Q100 qualified for automotive applications Single chip solution Available in an 8-lead SOIC package

Integrated AMR Angle Sensor and Signal Conditioner Features: High precision 180° angle sensor Maximum angular error of 0.5° Analog sine and cosine outputs Ratiometric output voltages Low thermal and lifetime drift SAR or Σ- analog-to-digital converter (ADC) drive capable Magnetoresistive (MR) bridge temperature compensation mode Temperature range: −40°C to +150°C EMI resistant Fault diagnostics VDD from 2.7 V to 5.5 V Minimum phase delay Qualified for automotive applications Available in an 8-lead SOIC package

SPI-/I2C-Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC Features: 10-bit temperature-to-digital converter  10-bit 8-channel ADC  DC input bandwidth  Input range: 0 V to 2.25 V and 0 V to VDD Temperature range: −40°C to +120°C  Temperature sensor accuracy of ±0.5°C  Supply range: 2.7 V to 5.5 V  Power-down current : <10 μA Internal 2.25 VREF option Double-buffered input logic  I2C, SPI, QSPI™, MICROWIRE™, and DSP compatible 4-wire serial interface  SMBus packet error checking (PEC) compatible 16-lead QSOP

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