Accelerometer SCA610 Series Rev3 - VTI Technologies - (Version JPG) - PDF Catalogue | Technical Documentation

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Tilt sensor, Sensor, Accelerometer, Gyroscope, MEMS

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SCA610 Series

Aceelerometer/inelinometer

features

• Available ranges ±0.5 g (±30 °), ±1 g (±90 °), ±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 reflow 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	Condition	Min.	Typ.	Max.	Units
Supply voltage Vdd Current consumption Operating temperature Resistive output load Capacitive load Output noise ⁽¹	Vdd = 5 V; No load Vout to VddorVss Vout to VddorVss DC...4 kHz	4.75 - 40 20	2.0	5.25 4.0 + 125 20 5	V mA °C kOhm nF mVrms
		4.75 - 40 20	2.0	5.25 4.0 + 125 20 5	V mA °C kOhm nF 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 °)	±1 (±90 °)	±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 (^8fc	±25 (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 ^(,c		5 5 4 4 4 4 4 %
Frequency response	-3dB point ^f11	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.oo v, unless otherwise specified

Note 1 The noise density of CAHH1G and CA1H1G is 30 figMz, the noise density of C23H1A and C28H1A is 20 (jgVHz.

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 specified as [Vout (+1 g) - Vout(-1 g)] / 2 [V/g] .

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

Note 6 Zero point error specified 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 specified as {{[Vout (+1 g) -Vout (-1 g)] / 2} -Vsens} / Vsens x 100 % [%] (room

temp. error included); Vsens = Nominal sensitivity. Note 8b Sensitivity error specified 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 Note 9c

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 10

Note T Note 12

Note 13

5.0üV'

VouT(@Vx) x

The ratiometric error is specified as: RE = 100% x

Vout(@5V)

VTI

TECHNOLOGIES

Rev. 3 /30 Dec 2005

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

Accelerometer SCA610 Series Rev3 - VTI Technologies - #1

Tilt sensor, Sensor, Accelerometer, Gyroscope, MEMS