SCA610-CAHH1G【PDF 1/2 页】ACCELEROMETER SNGL 0.5G DIL8 SMD

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Sheet目录506

[1页]2页

SCA610 Series

Accelerometer/Inclinometer

FEATURES

? Available ranges ± 0.5 g ( ± 30 o), ± 1 g ( ± 90 o), ± 1.5 g, ± 1.7 g,

± 3.0 g

? 8-pin plastic surface mount DIP package mountable with pick

and place machines

? Enhanced failure detection

? Digitally activated electrostatic self test (not for inclinometers)

? Calibration memory parity check

? Continuous connection failure detection

? Bi-directional acceleration measurement

? Controlled frequency response in the sensing element

? Single +5 V supply; ratiometric voltage output in the range

4.75 … 5.25 V

? Lead-free re?ow solderable lead-free component

BENEFITS

? Exceptional reliability, unprecedented accuracy

and excellent stability over temperature and time

? Outstanding overload and shock durability

? No additional components required

APPLICATIONS

? Acceleration measurement

? Inclination measurement

? Motion measurement

? Vibration measurement

For customised product please contact

VTI Technologies

ELECTRICAL CHARACTERISTICS

Parameter

Supply voltage Vdd

Current consumption

Operating temperature

Condition

Vdd = 5 V; No load

Min.

4.75

- 40

Typ.

2.0

Max.

5.25

4.0

+ 125

Units

°C

Resistive output load

Capacitive load

Output noise (1

Vout to Vdd or Vss

DC...4 kHz

kOhm

mVrms

PERFORMANCE CHARACTERISTICS

Parameter

Condition/

Comment

SCA610- SCA610-

CAHH1G (13 CA1H1G (13

SCA610-

C21H1A

SCA610-

C23H1A

SCA610-

C28H1A

SCA610-

C13H1A

SCA610-

CC5H1A

Units

Measuring range (2

Mounting plane (3

Zero point (nom.) (4

Sensitivity

Zero Point error (6

Sensitivity error

Sensitivity error (7

Typical non-linearity (7

Cross-axis sensitivity (10

Frequency response

Ratiometric error (12

Nominal

Measuring Direction

Mounting position

@ room temperature

-40..125 °C

-25...85 °C

Over measuring range

-3dB point (11

Vdd = 4.75...5.25 V

± 0.5 ( ± 30 o)

Horizontal

Vdd/2

4 (5b

± 50

± 4 (8b

± 2.5 (8b

± 10 (9b, c

18 ± 10

± 1 ( ± 90 o)

Horizontal

Vdd/2

2 (5a

± 50

± 4 (8a

± 2.5 (8a

± 10 (9a, c

18 ± 10

± 1

Horizontal

Vdd/2

2 (5a

± 125

± 5 (8a

± 3 (8a

± 20 (9a

50 ± 30

± 1.5

Horizontal

Vdd/2

1.333 (5a

± 125

± 5 (8a

± 3 (8a

± 20 (9a

50 ± 30

± 1.7

Horizontal

Vdd/2

1.2 (5a

± 125

± 5 (8a

± 3 (8a

± 20 (9a

50 ± 30

± 1 .5

Horizontal

Vdd/2

1.33 (5a

± 125

± 5 (8a

± 3 (8a

± 20 (9a

400 ± 150

± 3

Horizontal

Vdd/2

0.75 (5a

± 195

± 5 (8a

± 3 (8a

± 60 (9a

115 ± 55

V/g

VDD = 5.00 V, UNLESS OTHERWISE SPECIFIED

Note 1

Note 2

Note 3

Note 4

Note 5a

Note 5b

Note 6

Note 7

Note 8a

The noise density of CAHH1G and CA1H1G is 30 μg/ Hz , the noise density of C23H1A and C28H1A

is 20 μg/ Hz .

The measuring range is limited by sensitivity, offset and supply voltage rails of the device.

Measuring direction parallel to the mounting plane.

Vertical versions in +1 g position, i.e. arrow up: horizontal versions pins down (+0 g)

Sensitivity speci?ed as [Vout (+1 g) - Vout(-1 g)] / 2 [V/g] .

Sensitivity speci?ed as [Vout (+0.5 g) - Vout(-0.5 g)][V/g] .

Zero point error speci?ed as (Vout (+0 g) - Vdd/2) / Vsens [g] (room temp. error included);

Vsens = Nominal sensitivity.

Typical tolerance, not 100 % tested.

Sensitivity error speci?ed as {{[Vout (+1 g) -Vout (-1 g)] / 2} -Vsens} / Vsens x 100 % [%] (room

Note 9b

Note 9c

Note 10

Note 11

Note 12

Note 13

Relative to straight line between ± 0.5 g.

In inclinometer applications a correction based on the angular error resulting from cross-axis

sensitivity around the inclination angle reduces non-linearity.

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

axis, couples to the output. The total cross-axis sensitivity is the geometric sum of the

sensitivities of the two axes, which are perpendicular to the measuring axis.

The output has true DC (0 Hz) response.

Supply voltage noise also couples to the output, due to the ratiometric (output proportional

to supply voltage) nature of the accelerometer.

Self test not recommended.

Note 8b

Note 9a

temp. error included); Vsens = Nominal sensitivity.

Sensitivity error speci?ed as {{[Vout (+0.5 g) -Vout (-0.5 g)] / 2} -Vsens} / Vsens x 100 % [%]

(room temp. error included); Vsens = Nominal sensitivity.

Relative to straight line between ± 1 g.

The ratiometric error is speci?ed as:

RE = 100% x 1-

Vout(@Vx) x 5.00 V

Vout(@ 5 V)

Rev. 3 /30 Dec 2005

VTI Technologies reserves the right to modify this speci?cation without prior to notice.

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