MMA1251KEG Просмотр технического описания (PDF) - Freescale Semiconductor

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производитель

MMA1251KEG

Low-g Micromachined Accelerometer

Freescale Semiconductor 

g-Cell

Sensor

Integrator

Temp Comp

Gain

Filter

and Gain

VDD

VOUT

ST

Self-test

Control Logic &

EPROM Trim Circuits

Oscillator

Clock

Generator

VSS

STATUS

Figure 1. Simplified Accelerometer Functional Block Diagram

Table 1. Maximum Ratings

(Maximum ratings are the limits to which the device can be exposed without causing permanent damage.)

Rating

Symbol

Value

Unit

Powered Acceleration (all axes)

Unpowered Acceleration (all axes)

Supply Voltage

Drop Test (1)

Storage Temperature Range

1. Dropped onto concrete surface from any axis.

Gpd

1500

g

Gupd

2000

g

VDD

–0.3 to +7.0

V

Ddrop

1.2

m

Tstg

–40 to +125

°C

ELECTRO STATIC DISCHARGE (ESD)

WARNING: This device is sensitive to electrostatic

discharge.

Although the Freescale accelerometers contain internal

2 kV ESD protection circuitry, extra precaution must be taken

by the user to protect the chip from ESD. A charge of over

2000 volts can accumulate on the human body or associated

test equipment. A charge of this magnitude can alter the

performance or cause failure of the chip. When handling the

accelerometer, proper ESD precautions should be followed

to avoid exposing the device to discharges which may be

detrimental to its performance.

MMA1251

2

Sensors

Freescale Semiconductor, Inc.

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