SCA620 VTI technologies, SCA620 Datasheet
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SCA620
Manufacturer Part Number
SCA620
Description
Accelerometer
Manufacturer
VTI technologies
Datasheet
1.SCA620.pdf
(2 pages)
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www.DataSheet4U.com
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
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.
(1
(6
(7
(2
(4
(12
(7
(3
(7
(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
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
20
0.3
±
50
Vdd/2
±
±
with pick and place machines
range 4.75 … 5.25 V
±
±
1.2
40
±
±
4
125
3
5
2
1.7
(5
0.6
(8
(8
30
(9
Typ.
0.25
2.0
±
Units
mg/°C
1.7 g
V/g
mg
mg
%
%
%
Hz
%
g
V
Max.
5.25
4.0
125
20
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.
mA
mg
°C
nF
V
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%
x
1-
Vout(@Vx) x
Vout(@
5
V)
5.00
Vx
V
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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 ...