MPX12
Sensors
Freescale Semiconductor 3
Pressure
Operating Characteristics
Table 1. 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.
P
OP
0— 10 kPa
Supply Voltage
(2)
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.
V
S
— 3.0 6.0 Vdc
Supply Current I
o
—6.0 — mAdc
Full Scale Span
(3)
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.
V
FSS
45 55 70 mV
Offset
(4)
4. Offset (V
OFF
) is defined as the output voltage at the minimum rated pressure.
V
off
020 35 mV
Sensitivity ΔV/ΔP—5.5 —mV/kPa
Linearity — –0.5 — 5.0 %V
FSS
Pressure Hysteresis
(6)
(0 to 10 kPa) — — ±0.1 — %V
FSS
Temperature Hysteresis
(–40°C to +125°C) — — ±0.5 — %V
FSS
Temperature Coefficient of Full Scale Span
TCV
FSS
–0.22 — –0.16 %V
FSS
/°C
Temperature Coefficient of Offset
TCV
off
— ±15 — μV/°C
Temperature Coefficient of Resistance
TCR 0.21 — 0.27 %Z
in
/°C
Input Impedance Z
in
400 — 550 Ω
Output Impedance Z
out
750 — 1250 Ω
Response Time
(5)
(10% to 90%)
5. 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.
t
R
—1.0 — ms
Warm-Up Time
(6)
6. Warm-up Time is defined as the time required for the product to meet the specified output voltage after the pressure is stabilized.
——20—ms
Offset Stability
(7)
7. Offset stability is the product’s output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test.
——±0.5—%V
FSS
