XMMA1000P XMMA2000W

3

Motorola Sensor Device Data

OPERATING CHARACTERISTICS

(Unless otherwise noted: –40

° v TA v +85°, 4.75 v VDD v 5.25, Acceleration = 0g, Loaded output(1))

Characteristic

Symbol

Min

Typ

Max

Unit

Sensitivity (TA = 25°C, VDD = 5.0 V)(2)

∆S

37.2

40

42.8

mV/g

Sensitivity(2)

∆S

7.36

8.0

8.64

mV/V/g

Zero Accel Output(3) (VDD = 5.0 V)

VOFF

2.2

2.5

2.8

V

Zero Accel Output

VOFF

0.44 VDD

0.5 VDD

0.56 VDD

V

Acceleration Range(4)

G

44

50

—

g

Noise (10 Hz to 400 Hz)(5)

VN

—

—

3.5

mVrms

Clock Noise(6)

VNC

—

2.0

—

mVpk

Filter Cut Off Frequency

F*3dB

360

400

440

Hz

Self–Test Output Response

GST

20

25

30

g

Self–Test Input Low

VIL

—

—

1.4

V

Self–Test Input High

VIH

3.7

—

—

V

Self–Test Input Loading(7)

IIN

30

60

120

µA

Self–Test Response Time(8)

tST

—

2.0

—

ms

Electrical Saturation Recovery Time(9)

—

—

0.2

—

ms

Full Scale Output Range (IOUT = 200 µA)

VFSO

0.3

—

VDD *0.3

V

Capacitive Load Drive(10)

CL

—

—

100

pF

Output Impedance

ZO

—

300

—

Ω

Nonlinearity

—

—

1.0

—

% FSO

Alignment Error

—

—

"3.0

—

degrees

Transverse Sensitivity(11)

—

—

3.0

—

% FSO

Package Resonance (DIP/WB)

—

—

10/5

—

kHz

NOTES:

1. For a loaded output the measurements are observed after an RC filter consisting of a 1 k

Ω resistor and a 0.01 µF capacitor to ground.

2. The device is calibrated at 20g.

3. The device can measure both + and

* acceleration. With no input acceleration the output is at midsupply. For positive acceleration the output

will increase above VDD/2 and for negative acceleration the output will decrease below VDD/2.

4. Refer to the Principle of Operation section for a sample g range calculation.

5. Refer to the Principle of Operation section for a sample rms to peak to peak calculation.

6. At clock frequency

^ 65 kHz.

7. The digital input pin has an internal pull–down current source to prevent inadvertent self test initiation due to external board level leakages.

8. Time for the output to reach 90% of its final value after a self–test is initiated.

9. Time for amplifiers to recover after an acceleration signal causing them to saturate.

10. Preserves phase margin (60

°) to guarantee output amplifier stability.

11. A measure of the devices ability to reject an acceleration applied 90

° from the true axis of sensitivity.