SCA620 VTI technologies, SCA620 Datasheet

SCA620

Manufacturer Part Number

SCA620

Description

Accelerometer

Manufacturer

VTI technologies

Datasheet

1.SCA620.pdf (2 pages)

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Part Number:

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Part Number:

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Current page: 1 of 2
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Rev. 26 Aug 2004

Note 1

Note 2

Note 3

Note 4

Note 5a

Note 6

Note 7

Note 8

ELECTRICAL CHARACTERISTICS

Parameter

Supply voltage Vdd

Current consumption

Operating temperature

Resistive output load

Capacitive load

Output noise

PERFORMANCE CHARACTERISTICS

Parameter

Measuring range

Measuring direction

Zero point (nom.)

Sensitivity

Zero point error

Zero point tempco

Sensitivity error

Typical non-linearity

Cross-axis sensitivity

Frequency response

Ratiometric error

VDD = 5.00 V, UNLESS OTHERWISE SPECIFIED

The noise density of CF8H1A is 20 µg/ Hz.

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

Measuring direction perpendicular to the mounting plane.

Vertical versions in +1 g position pins down, horizontal versions leg row 1-4 pointing downwards.

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

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

Vsens = Nominal sensitivity.

Typical tolerance, not 100 % tested.

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

temp. error included); Vsens = Nominal sensitivity.

(12

(10

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

Condition

Vdd = 5 V; No load

Vout to Vdd or Vss

DC...80 kHz

Condition/

Comment

Nominal

Mounting position

@ room temperature

-40...125 °C

-25...85 °C

-40...125 °C

-25...85 °C

Over measuring range

-3 dB point

Vdd = 4.75...5.25 V

(11

Accelerometer

SCA620-

CF8H1A

SCA620 Series

Min.

- 40 +

FEATURES

• Available ranges

• 8-pin plastic surface mount DIP package mountable

• Enhanced failure detection

• Digitally activated electrostatic self test

• Calibration memory parity check

• Continuous connection failure detection

• Bi-directional acceleration measurement

• Controlled frequency response in the sensing element

• Re-ﬂ ow solderable, process compatible

• Single +5 V supply; ratiometric voltage output in the

4.75

Horizontal

0.3

Vdd/2

with pick and place machines

range 4.75 … 5.25 V

1.2

125

1.7

0.6

Typ.

0.25

2.0

Units

mg/°C

1.7 g

V/g

Max.

5.25

4.0

125

Note 9

Note 10

Note 11

Note 12

The ratiometric error is speciﬁ ed as:

Units

kOhm

Relative to straight line between

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.

°C

BENEFITS

• Exceptional reliability, unprecedented accuracy and

• 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

excellent stability over temperature and time

RE =

1 g.

100%

Vout(@Vx) x

Vout(@

5.00

Related parts for SCA620

SCA620 Summary of contents

Page 1

... Sensitivity error speciﬁ {{[Vout (+1 g) -Vout (-1 g -Vsens} / Vsens x 100 % [%] (room temp. error included); Vsens = Nominal sensitivity. Rev. 26 Aug 2004 VTI Technologies reserves the right to modify this speciﬁ cation without prior to notice. SCA620 Series FEATURES • Available ranges 1.7 g ± ...

Page 2

... Units ºC RECOMMENDED CIRCUIT + VTI PART 5.08 5 PART NUMBER 4 3.03 SERIAL NUMBER VTI Technologies, Inc. One Park Lane Blvd. Suite 804 - East Tower Dearborn, MI 48126 USA Tel. +1 313 425 0850 Fax +1 313 425 0860 sales@vtitechnologies.com SCA620 Series PCB PAD LAYOUTS ...

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