Board Mountable Accelerometer Output Integral Temperature Compensated

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Board Mountable Accelerometer Output Integral Temperature Compensated

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Model 3255
Board Mountable Accelerometer Output Integral Temperature Compensated Cost
Frontal Impact Systems Side Impact Systems Vibration/Shock Monitoring Crash Recorder Aerospace
Model 3255 two-chip accelerometer designed cost surface mount applications. package mounted orientations, allowing measurement axis either parallel perpendicular mounting surface without costly brackets. This accelerometer consists micro machined silicon mass suspended multiple beams from silicon frame. Piezoresistors located beams change their resistance motion suspended mass changes strain beams. Silicon caps bottom device added provide over-range stops. This design provides very profile, high shock resistance, durability built-in damping over wide usable bandwidth. Each sensor individually serialized.
FEATURES
Surface Mount Package ±0.5% Non-linearity (typical) Self Test Function Response Built-in Damping Built-in Overrange Stops
patented self-test feature also built into sensor. applying voltage self-test pin, electrostatic force created that attracts seismic mass towards cap, simulating acceleration allowing proper sensor function verified.
DIMENSIONS
STANDARD RANGES
Range ±100 ±250 ±500
Accelerometer Amplified
Board Mountable Accelerometer PERFORMANCE SPECIFICATIONS
Supply Current: Ambient Temperature: 25°C (Unless otherwise specified)
RANGE PARAMETERS Bandwidth (MIN) Sensitivity (MIN TYP/ MAX) ±25G 0-2000 76.0/80.0/84.0 ±50G 0-2000 38.0/40.0/42.0 RANGE PARAMETERS Bandwidth (MIN) Sensitivity (MIN TYP/ MAX) ±250G 0-3000 7.6/8.0/8.4 RANGES PARAMETERS Zero Acceleration Output Non-Linearity Transverse Sensitivity Supply Voltage Supply Current Output Noise Self-Test Input Voltage Self-Test Response (Vst -5V) Self-Test Input Current (Vst -5V) Self-Test Accuracy Output Source Current (load ground) Output Sink Current (supply load) Acceleration Limits Operating Temperature Storage Temperature Weight -40°C +85°C -40°C +125°C Grams 2000 -0.89 -1.48 -2.07 ±500G 0-3000 3.8/4.0/4.2 ±100G 0-2000 19.0/20.0/21.0
Model 3255
UNITS mV/g
NOTES
UNITS mV/g
NOTES
UNITS Volts Span Span Volts Volts
NOTES
Notes output voltage increases from Zero Acceleration Output positive acceleration decreases negative acceleration. Best Straight Line. Output ratio metric with supply voltage range (5.0 0.5) Includes effects over operating temperature range. kHz. Applying self-test input voltage simulates acceleration. sensor output proportional square voltage difference between self-test input positive supply. When using self-test function, self-test input should connected positive supply voltage. detailed description refer Technical Note TN010.
Self-test input voltage with respect supply voltage. example, supply voltage then equivalent ground. useful frequency range defined range frequencies over which device sensitivity within value. alarm output digital output which during normal operation when output voltage accelerometer outside normal range. This case there malfunction accelerometer broken wire bond sensor.
ORDERING INFORMATION
CONNECTIONS
thru FUNCTION Alarm Function Signal Output Ground Supply Self Test Electrical Connection
April 2000
Accelerometer Amplified

Board Mountable Accelerometer Output Integral Temperature Compensated

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