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SCA600 Series
Accelerometer
FEATURES * Available ranges 1g, 1.5g, 1,7g, 3g, * 8-pin plastic surface mount DIP package mountable with pick and place machines * 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-flow solderable, process compatible * Single +5V supply; ratiometric voltage output in the range 4.75 ... 5.25V 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
ELECTRICAL CHARACTERISTICS
Parameter Supply voltage Vdd Current consumption Operating temperature Resistive output load Capacitive load Output noise Condition Vdd = 5V; No load Vout to Vdd or GND Vout to Vdd or GND DC...4kHz - 40 20 1 Min. 4.75 2.0 Typ. Max. 5.25 4.0 + 125 20 5 Units V mA C kOhm nF mVrms
VDD = 5.00V, UNLESS OTHERWISE SPECIFIED
PERFORMANCE CHARACTERISTICS
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Note 1 Note 2 Note 3 Note 4 Note 5a Note 5b Note 6 Note 7
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 +1g position, i.e. arrow up: horizontal versions pins down (+0g) Sensitivity specified as [Vout (+1g) - Vout(-1g)] / 2 [V/g] . Zero point error specified as [(Vout (+0g) - Vdd/2) / Vsens [g] (room temp. error included); Vsens = Nominal sensitivity. Sensitivity error specified as [Vout (+1g) - Vdd/2] / Vsens [g] (room temp. error included); Vsens = Nominal sensitivity. Typical tolerance, not 100 % tested. Sensitivity error specified as {{[Vout (+1g) -Vout (-1g)] / 2} -Vsens} / Vsens x 100% [%] (room temp. error included); Vsens = Nominal sensitivity.
Note 8 Note 9
Note 10 Note 11
Relative to straight line between 1g. 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 (0Hz) response. Supply voltage noise also couples to the output, due to the ratiometric (output proportional to supply voltage) nature of the accelerometer.
Vout(@Vx) x 5.00V Vx Vout(@5V)
The ratiometric error is specified as: RE = 100% x 1 -
Shanghai Lamshine Co., LTD
www.51sensor.com
sales@51sensor.com
021-58796509.
SCA600 Series
ABSOLUTE MAXIMUM RATINGS
Parameter Acceleration (powered or non-powered) Supply voltage Voltage at input / output pins Temperature range Value 20000 -0.3 to +7.0 -0.3 to Vdd + 0.3 -55 to +125 Units g V V C
ELECTRICAL CONNECTION
Pin# 1 2 3 4 5 6 7 8 Pin Name Connection Open or capacitively connected to GND for EMC Open or capacitively connected to GND for EMC Open or capacitively connected to GND for EMC Negative supply voltage (VSS) Open or capacitively connected to GND for EMC Self-test control Sensor analog output Positive supply voltage (VDD)
RECOMMENDED CIRCUIT
ST VOUT VDD
DIMENSIONS
PCB PAD LAYOUTS
The accelerometer weighs under 1g. The size of the part is approximately (w x h x l) 9 x 5 x 11 mm. Pin pitch is standard 100 mils.
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Acceleration in the direction of the arrow will increase the output voltage.
Lamshine Technologies, Inc. Room 139-1906 Dongyuan Yicun Dongchang Rd. Shanghai P. R. China Tel. +86 21 58796509 www.51sensor.com 51 sensor

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