ADXL202 DATASHEET PDF


ADXL datasheet, ADXL circuit, ADXL data sheet: AD – Low Cost +-2 g/+ g Dual Axis iMEMS Accelerometers with Digital Output,alldatasheet. ADXL 2g Dual Axis Accelerometer With Duty Cycle Outputs FEATURES 2- Axis Acceleration Sensor on a Single IC Chip Measures Static Acceleration as. ADXL Accelerometers are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for ADXL Accelerometers.

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ADXL Datasheet(PDF) – Analog Devices

This filtering improves measurement resolution and helps prevent aliasing. Outline of the Declaration xatasheet Independence. Documents Flashcards Grammar checker. In either of the above approaches, the ADXLE can be turned on and off directly using a digital port pin on the microcontroller to power the accelerometer without additional components.

A capacitor still must be added at this point for filtering. Consult the appropriate Application Note. This is a stress rating only; functional operation of the device at these or any other conditions above those indicate in the opera tional sections of this specification is not implied. This technique requires only passive components. Specific code sets, reference designs, and application notes are available from the factory.

Table III is useful for estimating the probabilities of exceeding various peak values, given the rms value. BoxNorwood, MAU. This pin may be left open circuit or connected to common in normal use. A single resistor sets dtaasheet period for a complete cycle T2which can be set between 0.

Polysilicon springs suspend the structure over the surface of the wafer and provide a resistance against acceleration forces. The second relates to the measurement resolution of the counter when decoding the duty cycle output. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. The resulting movement of the beam allows the user datssheet test if the accelerometer is functional. When one sensor is reading a maximum change in output per degree, the other is at its minimum.

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This will result in greater dynamic error generated at the DCM.

The actual resolution of the acceleration signal is, however, limited by the time resolution of the counting devices used to decode the duty cycle.

Application notes outlining algorithms for calculating acceleration from duty cycle and automated calibration routines are available from the factory.

The microcontroller should have provisions for software calibration. The ADXLE architecture has been designed so that these calibrations take place in the software of the microcontroller used to decode the duty cycle signal.

It need only be updated to account for changes due to daatsheet, a relatively slow process. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

An accelerometer uses the force of gravity as an input vector to determine orientation of an object in space. Typical X-Axis Zero g vs. A minimum capacitance of pF for C X, Y is required in all cases. Running asxl202 part at 3 V will reduce the supply current from 0. Decoding algorithms for various microcontrollers have been developed. Phase sensitive demodulation techniques are then used to rectify the signal and determine the direction of the acceleration.

An analog output can be reconstructed by filtering the duty cycle output.

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Capacitors must be added at these pins to implement low-pass filtering for antialiasing and noise reduction. Although the ADXLE features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges.

Some key points are presented here.

ADXL202 Data Sheet

Thomas Jefferson, Declaration of Independence. At this orientation its sensitivity datssheet changes in tilt is highest. The advantage of this method is an output scale factor of approximately double the analog output. Output for 16 Parts REV. The equation for the 3 dB bandwidth is: The user must filter the signal at this point to limit aliasing errors.

The accelerometer can measure static acceleration forces such as gravity, allowing it to be used as a tilt sensor. It is recommended that the user limit bandwidth to the lowest frequency needed by the application, to maximize the resolution and dynamic range of the accelerometer.

For low g applications, the force of gravity is the most sdxl202, accurate and convenient acceleration reference available.

ADXL Datasheet pdf – ±2 g Dual Axis Accelerometer – Analog Devices

One Technology Way, P. The offset and sensitivity are nominally: It contains a polysilicon surfacemicromachined sensor and signal conditioning circuitry to implement an open loop acceleration measurement architecture. The sensor is a surface micromachined polysilicon structure built on top of the silicon wafer.