MPVZ12
Sensors
Freescale Semiconductor
3
Table 2. Operating Characteristics
(V
S
= 3.0 Vdc, T
A
= 25
°
C unless otherwise noted, P1 > P2)
Characteristic
Symbol
Min
Typ
Max
Unit
Differential Pressure Range
(1)
1. 1.0 kPa (kiloPascal) equals 0.145 psi.
2. Device is ratiometric within this specified excitation range. Operating the device above the specified excitation range may induce additional
error due to device self-heating.
3. Full Scale Span (V
FSS
) is defined as the algebraic difference between the output voltage at full rated pressure and the output voltage at the
minimum related pressure.
4. Offset (V
OFF
) is defined as the output voltage at the minimum rated pressure.
5. Accuracy (error budget) consists of the following:
Linearity:
Output deviation from a straight line relationship with pressure, using end point method, over the specified
pressure range.
Temperature Hysteresis: Output deviation at any temperature within the operating temperature range, after the temperature is cycled to
and from the minimum or maximum operating temperature points, with zero differential pressure applied.
Pressure Hysteresis:
Output deviation at any pressure with the specified range, when this pressure is cycled to and from the minimum
or maximum rated pressure at 25°C.
TcSpan:
Output deviation at full rated pressure over the temperature range of 0 to 85°C, relative to 25°C.
TcOffset:
Output deviation with minimum rated pressure applied, over the temperature range of 0 to 85°C, relative to 25°C.
TCR:
Z
IN
deviation with minimum rated pressure applied, over the temperature range of -40°C to ±125°C, relative to
25°C.
6. Response Time is defined as the time form the incremental change in the output to go from 10% to 90% of its final value when subjected to
a specified step change in pressure.
7. Warm-up Time is defined as the time required for the product to meet the specified output voltage after the pressure is stabilized.
8. Offset stability is the product’s output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test.
P
OP
0
—
10
kPa
Supply Voltage
(2)
V
S
—
3.0
6.0
Vdc
Supply Current
I
o
—
6.0
—
mAdc
Full Scale Span
(3)
V
FSS
45
55
70
mV
Offset
(4)
V
off
0
20
35
mV
Sensitivity
V/
P
—
5.5
—
mV/kPa
Linearity
(5)
—
–0.5
—
5.0
%V
FSS
Pressure Hysteresis
6
(0 to 10 kPa)
—
—
±0.1
—
%V
FSS
Temperature Hysteresis
(5)
(–40
°
C to +125
°
C)
—
—
±0.5
—
%V
FSS
Temperature Coefficient of Full Scale Span
(5)
TCV
FSS
–0.22
—
–0.16
%V
FSS
/
°
C
Temperature Coefficient of Offset
(5)
TCV
off
—
±
15
—
μ
V/
°
C
Temperature Coefficient of Resistance
(5)
TCR
0.28
—
0.34
%Z
in
/
°
C
Input Impedance
Z
in
400
—
550
W
Output Impedance
Z
out
750
—
1250
W
Response Time
(6)
(10% to 90%)
t
R
—
1.0
—
ms
Warm-Up Time
(7)
—
—
20
—
ms
Offset Stability
(8)
—
—
±0.5
—
%V
FSS