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производитель

MMA7260

±1.5g - 6g Three Axis Low-g Micromachined Accelerometer

Freescale Semiconductor 

Table 2. Operating Characteristics

Unless otherwise noted: –40°C < TA < 105°C, 2.2 V < VDD < 3.6 V, Acceleration = 0g, Loaded output(1)

Characteristic

Operating Range(2)

Supply Voltage(3)

Supply Current

Supply Current at Sleep Mode(4)

Operating Temperature Range

Acceleration Range, X-Axis, Y-Axis, Z-Axis

g-Select1 & 2: 00

g-Select1 & 2: 10

g-Select1 & 2: 01

g-Select1 & 2: 11

Output Signal

ZZeerroo--gg(4(T) A = 25°C, VDD = 3.3 V)(5)

X-axis

Y-axis

Z-axis

Sensitivity (TA = 25°C, VDD = 3.3 V)

1.5g

2g

4g

6g

Sensitivity(4)

X-axis

Y-axis

Z-axis

Bandwidth Response

XY

Z

Noise

RMS (0.1 Hz – 1 kHz)(4)

Power Spectral Density RMS (0.1 Hz – 1 kHz)(4)

Control Timing

Power-Up Response Time(8)

Enable Response Time(9)

Sensing Element Resonant Frequency

XY

Z

Internal Sampling Frequency

Output Stage Performance

Full-Scale Output Range (IOUT = 30 µA)

Nonlinearity, XOUT, YOUT, ZOUT

Cross-Axis Sensitivity(10)

Ratiometric Error(11)

Symbol

Min

VDD

IDD

IDD

TA

gFS

gFS

gFS

gFS

VOFF

VOFF, TA

S1.5g

S2g

S4g

S6g

S,TA

f-3dB

f-3dB

nRMS

nPSD

tRESPONSE

tENABLE

fGCELL

fGCELL

fCLK

VFSO

NLOUT

VXY, XZ, YZ

error

2.2

—

—

–40

—

—

—

—

1.485

±2.6(6)

±5.8(6)

±1.0(6)

740

555

277.5

185

±0.02(6)

±0.01(6)

±0.01(6)

—

—

—

—

—

—

—

—

—

VSS+0.25

–1.0

—

—

Typ

3.3

500

3.0

—

±1.5

±2.0

±4.0

±6.0

1.65

±0.6

±5.8

±0.8

800

600

300

200

±0.02

±0.01

±0.00

350

150

4.7

350

1.0

0.5

6.0

3.4

11

—

—

—

—

Max

3.6

800

10

+105

—

—

—

—

1.815

±3.8(7)

±5.9(7)

±0.8(7)

860

645

322.5

215

±0.02(7)

±0.01(7)

±0.01(7)

—

—

—

—

2.0

2.0

—

—

—

VDD–0.25

+1.0

5.0

—

Unit

V

μA

μA

°C

g

g

g

g

V

mg/°C

mV/g

mV/g

mV/g

mV/g

%/°C

Hz

Hz

mVrms

μg/ Hz

ms

ms

kHz

kHz

kHz

V

%FSO

%

%

1. For a loaded output, the measurements are observed after an RC filter consisting of a 1.0 kΩ resistor and a 0.1 µF capacitor on VDD-GND.

2. These limits define the range of operation for which the part will meet specification.

3. Within the supply range of 2.2 and 3.6 V, the device operates as a fully calibrated linear accelerometer. Beyond these supply limits the device

may operate as a linear device but is not guaranteed to be in calibration.

4. This value is measured with g-Select in 1.5g mode.

5. 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. For negative acceleration, the output will decrease below VDD/2.

6. These values represent the 10th percentile, not the minimum.

7. These values represent the 90th percentile, not the maximum.

8. The response time between 10% of full scale VDD input voltage and 90% of the final operating output voltage.

9. The response time between 10% of full scale Sleep Mode input voltage and 90% of the final operating output voltage.

10. A measure of the device’s ability to reject an acceleration applied 90 from the true axis of sensitivity.

11. Zero-g offset ratiometric error can be typically >20% at VDD = 2.2 V. Sensitivity ratiometric error can be typically >3% at VDD = 2.2. Consult

factory for additional information

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