ADXL150JQC Analog Devices Inc, ADXL150JQC Datasheet
ADXL150JQC
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ADXL150JQC Summary of contents
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... Surface Mount Package GENERAL DESCRIPTION The ADXL150 and ADXL250 are third generation 50 g sur- face micromachined accelerometers. These improved replace- ments for the ADXL50 offer lower noise, wider dynamic range, reduced power consumption and improved zero g bias drift. The ADXL150 is a single axis product; the ADXL250 is a fully ...
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... Self-test output varies with supply voltage. 7 When using ADXL250, both Pins 13 and 14 must be connected to the supply for the device to function. Specifications subject to change without notice +25 C for J Grade +5.00 V, Acceleration = Zero g , unless otherwise noted ADXL150JQC/AQC Min 40 33 MIN MAX V /2 – 0. ...
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... Although the ADXL150/ADXL250 feature proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, pro per ESD precautions are recommended to avoid performance degradation or loss of functionality. REV. 0 Package Characteristics Package 14-Lead Cerpac Model ADXL150JQC ADXL150AQC ADXL250JQC ADXL250AQC TP (DO NOT CONNECT ADXL250 ...
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ADXL150/ADXL250 GLOSSARY OF TERMS Acceleration: Change in velocity per unit time. Acceleration Vector: Vector describing the net acceleration acting upon the ADXL150/ADXL250 unit of acceleration equal to the average force of gravity occurring at the earth’s surface. A ...
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Typical Characteristics (@+5 V dc, +25 C with a 38 mV/ g Scale Factor unless otherwise noted) 5.0 4.0 3.0 2.0 1.0 0 –1.0 –2.0 –3.0 –4.0 –5.0 4.0 4.5 5.0 POWER SUPPLY VOLTAGE Figure 3. Typical Sensitivity Error from ...
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ADXL150/ADXL250 –5 NOISE FROM INTERNAL CLOCK –10 –15 – TIME – s Figure 9. Typical Output Noise Voltage with Spikes Generated by Internal Clock SELF-TEST OUTPUT (0.2V/DIV) SELF-TEST ...
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THEORY OF OPERATION The ADXL150 and ADXL250 are fabricated using a propri- etary surface micromachining process that has been in high volume production since 1993. The fabrication technique uses standard integrated circuit manufacturing methods enabling all the signal processing circuitry ...
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ADXL150/ADXL250 i S MEM Increasing the Accelerometer’s Output Scale Factor Figure 15 shows the basic connections for using an external buffer amplifier to increase the output scale factor. The output multiplied by the gain of the buffer, which is simply ...
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NOT CONNECT ADXL150 C1 0.1 F SENSOR 9 SELF-TEST NOTES “QUICK” CALIBRATION METHOD USING RESISTOR R2 AND A +5V SUPPLY. (a) WITH ACCELEROMETER ORIENTED AWAY FROM EARTH’S GRAVITY (i.e., SIDEWAYS), MEASURE PIN 10 OF ...
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ADXL150/ADXL250 DEVICE BANDWIDTH VS. MEASUREMENT RESOLUTION Although an accelerometer is usually specified according to its full-scale g level, the limiting resolution of the device, i.e., its minimum discernible input level, is extremely important when measuring low g accelerations. 100m g ...
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For bandwidths other than those listed, use the formula Desired 3dB Bandwidth simply scale the value of capacitor Cf accordingly; i.e., for an ...
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ADXL150/ADXL250 Additional Noise Reduction Techniques Shielded wire should be used for connecting the accelerometer to any circuitry that is more than a few inches away—to avoid 60 Hz pickup from ac line voltage. Ground the cable’s shield at only one ...
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... INTERFACING THE ADXL150/ADXL250 SERIES ACCELEROMETERS WITH POPULAR ANALOG-TO- DIGITAL CONVERTERS. Basic Issues The ADXL150/ADXL250 Series accelerometers were designed to drive popular analog-to-digital converters (ADCs) directly. In applications where both full-scale measurement range and a 1 kHz bandwidth are needed, the V accelerometer is simply connected to the V ADC as shown in Figure 25a ...
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... Direct Connection, No Signal Amplification or Post Filtering + OUT Cf b. Single-Pole Post Filtering, No Signal Amplification + OFFSET ADJUST OUT V OS NULL PIN c. Single-Pole Post Filtering and Signal Amplification Figure 25. Interfacing the ADXL150/ADXL250 Series Accelerometers to an ADC –14– ADC +V S ADC INPUT RESISTANCE + ADC REV. 0 ...
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SEATING PLANE REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 14-Lead Cerpac (QC-14) 0.390 (9.906) MAX 14 8 0.419 (10.643) 0.394 (10.008 PIN 1 0.300 (7.62) 0.195 (4.953) ...