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ADXL250, ADXL250AQC/JQC, ADXL250ARQC

Table of contents:
Info of ADXL250
Info of ADXL250AQC/JQC
Info of ADXL250ARQC

ADXL250, ADXL250AQC/JQC, ADXL250ARQC Selling Leads, Datasheet

MFG:ADI Package Cooled:N/A D/C:09+

ADXL250, ADXL250AQC/JQC, ADXL250ARQC Picture

ADXL250, ADXL250AQC/JQC, ADXL250ARQC Datasheet download

Five Points

Part Number: ADXL250

MFG: ADI

Package Cooled: N/A

D/C: 09+

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ADXL250 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 ratiometric to the power supply, eliminating the need for a voltage 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 automotive and military temperature ranges.

ADXL250 Maximum Ratings

Acceleration (Any Axis, Unpowered for 0.5 ms) . . . . . . 2000 g
Acceleration (Any Axis, Powered for 0.5 ms) . . . . . . . . . 500 g
+V_S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7.0 V
Output Short Circuit Duration
(VO_UT, V_REFTerminals to Common) . . . . . . . . . . . . . Indefinite
Operating Temperature . . . . . . . . . . . . . . 55°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . 65°C to +150°C

ADXL250 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

ADXL250 Connection Diagram

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