SCA1000-N1000070 参数 Datasheet PDF下载

SCA1000-N1000070

Accelerometer

FEATURES

• Silicon 3D-MEMS sensor

• Dual axis X-Y measurement

•

±4

g range

• Over damped sensing element to control frequency response

• Advanced failure detection

• Lead-free reflow solderable lead free component

BENEFITS

• Excellent long term stability

• Highly damped sensing element

• Outstanding shock durability

APPLICATIONS

• Inclination measurement in high vibration environ-

ment

• Artificial horizon

For customized product, please contact VTI Technologies

ENVIRONMENTAL CHARACTERISTICS

Parameter

Operating Temperature Range

Storage Temperature Range

Shock Survival

Condition

Min

-40

-55

Typ.

Max

125

125

20 000

Units

°C

°C

g

ELECTRICAL CHARACTERISTICS

Parameter

Supply voltage

(1

Current consumption

Analog Output load

SPI clock frequency

AD conversion time

Data transfer time

@500 kHz clock

150

38

Resistive Vout to Vdd or GND

Capacitive

10

20

500

Condition

Min

4.75

Typ.

5

4.5

Max

5.25

Units

V

mA

kΩ

nF

kHz

µs

µs

PERFORMANCE CHARACTERISTICS

Parameter

Measuring range

Measuring direction

Zero point

(2

Zero point error over temperature

Sensitivity

(3

Sensitivity error over temperature

Typical Non-linearity

(7

Cross-axis sensitivity

(4

Frequency response –3dB point

(5

Ratiometric error

(6

Output noise density, typical

Digital output resolution

See “Measuring Directions”

Mounting position

-40…+125 °C

@ room temperature

-40…+125 °C

Range = -3 g...+3 g

Range = -4 g...+4 g

@ room temperature

KP, 20 dB/decade

Vdd = 4.75...5.25 V

From DC...80 Hz

FS

Condition

SCA1000-N1000070

±4

X-Y

Vdd/2

±60

0.55

±2.5

±80

±160

3.5

115±55

2

50

11

Units

g

V

mg

V/g

%

mg

mg

%

Hz

%

µg/

Hz

Bits

VDD = 5.00V, UNLESS OTHERWISE SPECIFIED

Note 1

Note 2

Note 3

Note 4

Note 5

Note 6.

100 nF supply by-pass capacitor is needed.

Zero point specified as Voffset = Vout(0 g)

Sensitivity specified as Vsens = {Vout(+1 g) - Vout(-1 g)}/2

The cross-axis sensitivity determines how much acceleration inclination, perpendicular to the measuring axis,

couples to the output.

The frequency response is determined by the sensing element’s internal gas damping. The output has true DC

(0Hz) response.

The ratiometric error is specified as

Vout(@Vx) x

5.00

V

RE =

100%

x

1-

Vx

Vout(@

5

V)

Rev. 2 / 16 Aug 2006

VTI Technologies reserves the right to modify this specification without prior to notice.