MMA8450QT datasheet(8/57 Pages) FREESCALE

8 / 57 page

Sensors

Freescale Semiconductor

MMA8450Q

Mechanical and Electrical Specifications

2.1

Mechanical Characteristics

Table 2. Mechanical Characteristics @ VDD = 1.8 V, T = 25°C unless otherwise noted.

Parameter

Test Conditions

Symbol

Min

Typ

Max

Unit

Full Scale Measurement Range

FS[1:0] set to 01

±1.8

±2

±2.2

FS[1:0] set to 10

±3.6

±4

±4.4

FS[1:0] set to 11

±7.2

±8

±8.8

Sensitivity

FS[1:0] set to 01

0.878

0.976

1.074

mg/digit

FS[1:0] set to 10

1.758

1.953

2.148

FS[1:0] set to 11

3.515

3.906

4.296

Sensitivity Change vs. Temperature(1)

1. Before board mount.

FS[1:0] set to 01

TCSo

±0.05

%/°C

Typical Zero-g Level Offset (2)

2. See appendix for distribution graphs.

FS[1:0] set to 01

0g-Off

±40

FS[1:0] set to 10

FS[1:0] set to 11

Typical Zero-g Offset Post Board Mount (2), (3)

3. Post board mount offset specification are based on an 8 layer PCB.

FS[1:0] set to 01

0g-OffBM

±50

FS[1:0] set to 10

FS[1:0] set to 11

Typical Zero-g Offset Change vs. Temperature (2)

TCOff

±0.5

mg/°C

Non Linearity

Best Fit Straight Line

FS[1:0] set to 01

±0.25

% FS

FS[1:0] set to 10

±0.5

FS[1:0] set to 11

±1

Self-test Output Change(4)

4. Self-test in one direction only. These are approximate values and can change by ±100 counts.

FS[1:0] set to 01, X-axis

Vst

-195

LSB

FS[1:0] set to 01, Y-axis

-195

FS[1:0] set to 01, Z-axis

+945

Output Noise

Normal Mode ODR = 400 Hz

Noise

375

μg/√Hz

Operating Temperature Range

Top

-40

+85

°C

MMA8450QT Datasheet(PDF) 8 Page - Freescale Semiconductor, Inc

MMA8450QT Datasheet(HTML) 8 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

Datasheet Download

Link URL