SCA610-CAHH1G - VTI Technologies

Rev. 3 /30 Dec 2005 VTI Technologies reserves the right to modify this speciﬁ cation without prior to notice.

Vout(@Vx) x

E = 100% xVout(@5V)

5.00V

SCA610 Series

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 reﬂ 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

Accelerometer/Inclinometer

ELECTRICAL CHARACTERISTICS

Parameter Condition Min. Typ. Max. Units

Supply voltage Vdd 4.75 5.25 V

Current consumption Vdd = 5 V; No load 2.0 4.0 mA

Operating temperature - 40 + 125 °C

Resistive output load Vout to Vdd or Vss 20 kOhm

Capacitive load Vout to Vdd or Vss 20 nF

Output noise (1 DC...4 kHz 5 mVrms

PERFORMANCE CHARACTERISTICS

Parameter Condition/

Comment

SCA610-

CAHH1G (13

SCA610-

CA1H1G (13

SCA610-

C21H1A

SCA610-

C23H1A

SCA610-

C28H1A

SCA610-

C13H1A

SCA610-

CC5H1A Units

Measuring range (2 Nominal ±0.5 (±30 º) ±1 (±90 º) ±1 ±1.5 ±1.7 ±1 .5 ±3 g

Mounting plane (3 Measuring Direction Horizontal Horizontal Horizontal Horizontal Horizontal Horizontal Horizontal

Zero point (nom.) (4 Mounting position Vdd/2 Vdd/2 Vdd/2 Vdd/2 Vdd/2 Vdd/2 Vdd/2 V

Sensitivity @ room temperature 4 (5b 2 (5a 2 (5a 1.333 (5a 1.2 (5a 1.33 (5a 0.75 (5a V/g

Zero Point error (6 -40..125 °C ±50 ±50 ±125 ±125 ±125 ±125 ±195 mg

Sensitivity error -40..125 °C ±4 (8b ±4 (8a ±5 (8a ±5 (8a ±5 (8a ±5 (8a ±5 (8a %

Sensitivity error (7 -25...85 °C ±2.5 (8b ±2.5 (8a ±3 (8a ±3 (8a ±3 (8a ±3 (8a ±3 (8a %

Typical non-linearity (7 Over measuring range ±10 (9b, c ±10(9a, c ±20(9a ±20 (9a ±20(9a ±20(9a ±60(9a mg

Cross-axis sensitivity (10 5544444%

Frequency response -3dB point (11 18±10 18±10 50±30 50±30 50±30 400±150 115±55 Hz

Ratiometric error (12 Vdd = 4.75...5.25 V 2 2 2 2 2 2 2 %

VDD = 5.00 V, UNLESS OTHERWISE SPECIFIED

Note 1 The noise density of CAHH1G and CA1H1G is 30 µg/ Hz, the noise density of C23H1A and C28H1A

is 20 µg/ Hz.

Note 2 The measuring range is limited by sensitivity, offset and supply voltage rails of the device.

Note 3 Measuring direction parallel to the mounting plane.

Note 4 Vertical versions in +1 g position, i.e. arrow up: horizontal versions pins down (+0 g)

Note 5a Sensitivity speciﬁ ed as [Vout (+1 g) - Vout(-1 g)] / 2 [V/g] .

Note 5b Sensitivity speciﬁ ed as [Vout (+0.5 g) - Vout(-0.5 g)][V/g] .

Note 6 Zero point error speciﬁ ed as (Vout (+0 g) - Vdd/2) / Vsens [g] (room temp. error included);

Vsens = Nominal sensitivity.

Note 7 Typical tolerance, not 100 % tested.

Note 8a Sensitivity error speciﬁ ed as {{[Vout (+1 g) -Vout (-1 g)] / 2} -Vsens} / Vsens x 100 % [%] (room

temp. error included); Vsens = Nominal sensitivity.

Note 8b Sensitivity error speciﬁ ed as {{[Vout (+0.5 g) -Vout (-0.5 g)] / 2} -Vsens} / Vsens x 100 % [%]

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

Note 9a Relative to straight line between ±1 g.

Note 9b Relative to straight line between ±0.5 g.

Note 9c In inclinometer applications a correction based on the angular error resulting from cross-axis

sensitivity around the inclination angle reduces non-linearity.

Note 10 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.

Note 11 The output has true DC (0 Hz) response.

Note 12 Supply voltage noise also couples to the output, due to the ratiometric (output proportional

to supply voltage) nature of the accelerometer.

Note 13 Self test not recommended.

The ratiometric error is speciﬁ ed as:

VTI Technologies Oy

Myllynkivenkuja 6

P.O. Box 27

FI-01621 Vantaa

Finland

Tel. +358 9 879 181

Fax +358 9 879 18791

sales@vti.ﬁ

VTI Technologies Oy

Frankfurt Branch

Rennbahnstr. 72-74

D-60528 Frankfurt am Main

Germany

Tel. +49 69 6786 880

Fax +49 69 6786 8829

sales.de@vti.ﬁ

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

ELECTRICAL CONNECTION

DIMENSIONS

RECOMMENDED CIRCUIT

PCB PAD LAYOUTS

ABSOLUTE MAXIMUM RATINGS

Parameter Value Units

Acceleration (powered or non-powered) 20000 g

Supply voltage -0.3 to +7.0 V

Voltage at input / output pins -0.3 to Vdd + 0.3 V

Temperature range -55 to +125 ºC

Pin# Pin Name Connection

1 Open or capacitively connected to GND for EMC*)

2 Open or capacitively connected to GND for EMC*)

3 Open or capacitively connected to GND for EMC*)

4 GND Negative supply voltage (VSS)

5 Open or capacitively connected to GND for EMC*)

6 ST Self-test control

7 VOUT Sensor analog output

8 VDD Positive supply voltage (VDD)

*) recommended capacity min. 20 pF – Effectiveness should be tested and if necessary adapted in

the respective connection.

The accelerometer weighs under 1 g.

The size of the part is approximately (w x h x l) 9 x 5 x 11 mm. Pin pitch is standard 100 mils.

Acceleration in the direction of the arrow

will increase the output voltage.

SCA610 Series