FSS
Low profile force sensor
COMMON PERFORMANCE CHARACTERISTICS
Vs = 5.0 ± 0.01 V, tamb = 25°C (unless otherwise noted)
Characteristics
Min.
0
-15
150
Typ.
Max.
1500
+15
Unit
g
Operating force
Zero pressure offset
Span2
Temperature effects (0 - 50°C)4
180
±0.5
-2200
+2200
±0.7
±0.5
±1.5
5.0
210
mV
Offset
Span
ppm/°C
Temperature effects on bridge impedance4
Linearity (BSL)3
Mechanical hysteresis5
Repeatability at 300g5
±1.5
% span
mV
Input impedance
Output impedance
4.0
4.0
8
6.0
6.0
kΩ
5.0
ESD (direct contact, terminals and plunger)
MCTF (main cycles to failure at 50°C)
kV
20
million cycles
Specification notes:
1. The maximum specified force which may be applied to the sensor without causing a permanent change in the output characteristics.
2. Span is the algebraic difference between the output voltage at full-scale force and the output at zero force. Span is
ratiometric to the supply voltage.
3. Linearity (BSL), the deviation of measured output at constant temperature (25°C) from "Best Straight Line" determined by
three points, offset pressure, full-scale pressure and half full-scale pressure.
4. Error band of the offset voltage, span or bridge impedance in the specified temperature range, relative to the 25°C reading.
5. Repeatability, the deviation in output readings for successive application of any given input force (all other conditions
remaining constant. Hysteresis, the error defined by the deviation in output signal obtained when a specific force point is
approached first with increasing force, then with decreasing force or vice versa (all other conditions remaining constant).
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September 2004 / 591
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