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ADXL150AQC 数据表(PDF) 1 Page - Analog Devices |
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ADXL150AQC 数据表(HTML) 1 Page - Analog Devices |
1 / 15 page FUNCTIONAL BLOCK DIAGRAMS SELF-TEST +VS 2 25k 5k ADXL150 GAIN AMP OFFSET NULL COM 0.1 F BUFFER AMP DEMODULATOR SENSOR +VS TP (DO NOT CONNECT) VOUT 9 CLOCK SELF-TEST 5k 25k ADXL250 GAIN AMP Y OFFSET NULL COM 0.1 F BUFFER AMP DEMODULATOR +VS TP (DO NOT CONNECT) 25k 5k GAIN AMP BUFFER AMP DEMODULATOR VOUTY X OFFSET NULL SENSOR +VS 2 CLOCK SENSOR VOUTX a 5 g to 50 g, Low Noise, Low Power, Single/Dual Axis iMEMS® Accelerometers ADXL150/ADXL250 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 integrated dual axis accelerometer with signal conditioning on a single monolithic IC, the first of its kind available on the com- mercial market. The two sensitive axes of the ADXL250 are orthogonal (90 °) to each other. Both devices have their sensitive axes in the same plane as the silicon chip. The ADXL150/ADXL250 offer lower noise and improved signal-to-noise ratio over the ADXL50. Typical S/N is 80 dB, allowing resolution of signals as low as 10 mg, yet still providing a ±50 g full-scale range. Device scale factor can be increased from 38 mV/g to 76 mV/g by connecting a jumper between VOUT and the offset null pin. Zero g drift has been reduced to 0.4 g over the industrial temperature range, a 10 × improvement over the ADXL50. Power consumption is a modest 1.8 mA per axis. The scale factor and zero g output level are both FEATURES Complete Acceleration Measurement System on a Single Monolithic IC 80 dB Dynamic Range Pin Programmable 50 g or 25 g Full Scale Low Noise: 1 m g/ √Hz Typical Low Power: <2 mA per Axis Supply Voltages as Low as 4 V 2-Pole Filter On-Chip Ratiometric Operation Complete Mechanical & Electrical Self-Test Dual & Single Axis Versions Available Surface Mount Package REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. ratiometric to the power supply, eliminating the need for a volt- age reference when driving ratiometric A/D converters such as those found in most microprocessors. A power supply bypass capacitor is the only external component needed for normal operation. The ADXL150/ADXL250 are available in a hermetic 14-lead surface mount cerpac package specified over the 0 °C to +70°C commercial and –40 °C to +85°C industrial temperature ranges. Contact factory for availability of devices specified over automo- tive and military temperature ranges. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1998 iMEMS is a registered trademark of Analog Devices, Inc. |
类似零件编号 - ADXL150AQC |
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类似说明 - ADXL150AQC |
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