ADXL are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for ADXL ADXL datasheet, ADXL circuit, ADXL data sheet: AD – Small and Thin 5 g Accelerometer,alldatasheet, datasheet, Datasheet search site for. ADXL Small and Thin 5 g Accelerometer FEATURES. Small and thin mm LFCSP package 2 mg resolution 60 Hz Wide supply voltage range: V.
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ADXL320 Datasheet PDF
It can also measure both dynamic acceleration vibration and static acceleration gravity. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P. BoxNorwood, MAU. Typical specifications are not guaranteed. Sensitivity is essentially ratiometric to VS.
This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Electrostatic charges as high as V readily accumulate on the human body and test equipment and can discharge without detection.
Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to eatasheet performance degradation or loss of functionality. Pin Configuration Table 3. Pin Function Descriptions Pin No.
Recommended Soldering Profile Table 4. Zero g Bias vs. X Cross-Axis Sensitivity Figure Y Cross-Axis Sensitivity Rev. It contains a polysilicon surface-micromachined sensor and signal conditioning circuitry to implement an openloop acceleration measurement architecture. The output signals are analog voltages that are proportional to acceleration. The accelerometer measures static acceleration forces, such as gravity, which allows it to be used as a tilt sensor. The sensor is a polysilicon surface-micromachined structure built on top of a silicon wafer.
Polysilicon springs suspend the structure over the surface of the wafer and provide a resistance against acceleration forces. Deflection of the structure is measured using a differential capacitor that consists of independent fixed plates and plates attached to the moving mass. Acceleration deflects the beam and unbalances the differential capacitor, resulting in an output square wave whose amplitude is addl320 to acceleration.
ADXL Datasheet(PDF) – Analog Devices
Phase-sensitive demodulation techniques are then used to rectify the signal and determine the direction of the acceleration. The user then sets the signal bandwidth of the device by adding a capacitor. This filtering improves measurement resolution and helps prevent aliasing.
Figure 13 demonstrates the typical sensitivity shift over temperature for supply voltages of 3 V. However, in some cases, particularly where noise is present at the kHz internal clock frequency or any harmonic thereofnoise on the supply may cause interference on the ADXL output.
Capacitors must be added at these pins to implement low-pass filtering for antialiasing and noise reduction. Filtering can be used to lower the noise floor, which improves the resolution of the accelerometer. The output of the ADXL has a typical bandwidth of 2. The user must filter the signal at this datasheeh to limit aliasing errors.
The analog bandwidth may be further decreased to reduce noise and improve resolution. The user should limit bandwidth to the lowest frequency needed by the application in order to maximize the resolution and dynamic range of the accelerometer.
Peak-to-peak noise can only be estimated by statistical methods. Table 6 is useful for estimating the probabilities of exceeding various peak values, given the rms value.
ADIS Datasheet Error: Figure 25 – Documents – MEMS Inertial Sensors – EngineerZone
When this pin is set to VS, an electrostatic force is exerted on the accelerometer beam. The resulting movement of the beam allows the user to test if the accelerometer is functional. The typical change in output is mg corresponding to 55 mV. This pin may be left opencircuit or connected to common COM dattasheet normal use. Datazheet this cannot be guaranteed due to the system design for instance, if there are multiple supply voltagesthen a low VF clamping diode between ST and VS is recommended.
Note that some performance parameters change as the supply voltage is varied. The ADXL output is ratiometric, so the output sensitivity or scale factor varies proportionally to supply voltage.
The output noise is not ratiometric but is absolute in volts; therefore, the noise density decreases as the supply voltage increases. An accelerometer uses the force of gravity as an input vector to determine the orientation of an object in space.
At this orientation, its sensitivity to changes in tilt is highest. When the accelerometer is perpendicular to gravity, its output changes nearly Self-test response in g is roughly proportional to the square of the supply voltage.
However, when ratiometricity of sensitivity is factored in with supply voltage, the self-test response in volts is roughly proportional to the cube of the supply voltage. The supply current decreases as the supply voltage decreases.