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ADXL150

Analog Devices
Part Number ADXL150
Manufacturer Analog Devices
Description +-5 g to +-50 g/ Low Noise/ Low Power/ Single/Dual Axis iMEMS Accelerometers
Published Mar 23, 2005
Detailed Description a ؎5 g to ؎50 g, Low Noise, Low Power, Single/Dual Axis iMEMS® Accelerometers ADXL150/ADXL250 FUNCTIONAL BLOCK DIAGRAMS...
Datasheet PDF File ADXL150 PDF File

ADXL150
ADXL150

Overview
a ؎5 g to ؎50 g, Low Noise, Low Power, Single/Dual Axis iMEMS® Accelerometers ADXL150/ADXL250 FUNCTIONAL BLOCK DIAGRAMS TP (DO NOT CONNECT) +VS 0.
1␮F SENSOR +VS 2 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 ADXL150 GAIN AMP 5k⍀ VOUT BUFFER AMP DEMODULATOR 25k⍀ CLOCK 9 SELF-TEST COM OFFSET NULL X OFFSET NULL TP (DO NOT CONNECT) ADXL250 +VS 0.
1␮F SENSOR GAIN AMP 25k⍀ DEMODULATOR 5k⍀ BUFFER AMP VOUTX GENERAL DESCRIPTION The ADXL150 and ADXL250 are third generation ± 50 g surface micromachined accelerometers.
These improved replacements 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 commercial 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 CLOCK GAIN AMP SENSOR 5k⍀ DEMODULATOR 25k⍀ +VS 2 VOUTY BUFFER AMP SELF-TEST COM Y OFFSET NULL rat...


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