Datasheet

MPX2100
Sensors
4 Freescale Semiconductor
Pressure
Maximum Ratings
LINEARITY
Linearity refers to how well a transducer's output follows
the equation: V
out
= V
off
+ sensitivity x P over the operating
pressure range. There are two basic methods for calculating
nonlinearity: (1) end point straight line fit (see Figure 2) or (2)
a least squares best line fit. While a least squares fit gives the
“best case” linearity error (lower numerical value), the
calculations required are burdensome.
Conversely, an end point fit will give the “worst case” error
(often more desirable in error budget calculations) and the
calculations are more straightforward for the user. Motorola's
specified pressure sensor linearities are based on the end
point straight line method measured at the midrange
pressure.
Figure 2. Linearity Specification Comparison
Table 2. Maximum Ratings
(1)
1. Exposure beyond the specified limits may cause permanent damage or degradation to the device.
Rating Symbol Value Unit
Maximum Pressure (P1 > P2)
P
max
400 kPa
Storage Temperature
T
stg
-40 to +125 °C
Operating Temperature
T
A
-40 to +125 °C
Relative Voltage Output
Pressure (% Fullscale)
0 50 100
End Point
Straight Line Fit
Exaggerated
Performance
Curve
Least Squares Fit
Least
Square
Deviation
Straight Line
Deviation
Offset