MPXA4250A View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MPXA4250A

Integrated Silicon Pressure Sensor Manifold Absolute Pressure Sensor On-Chip Signal Conditioned, Temperature Compensated and Calibrated

Freescale Semiconductor 

Table 2. Operating Characteristics (VS = 5.1 VDC, TA = 25°C unless otherwise noted, P1 > P2, Decoupling circuit shown in

Figure 3 required to meet electrical specifications.)

Characteristic

Symbol

Min

Typ

Max

Units

Differential Pressure Range(1)

POP

20

—

250

kPa

Supply Voltage(2)

VS

4.85

5.1

5.35

VDC

Supply Current

Minimum Pressure Offset(3)

@ VS = 5.1 Volts

Full Scale Output(4)

@ VS = 5.1 Volts

Full Scale Span(5)

@ VS = 5.1 Volts

Accuracy(6)

Sensitivity

(0 to 85°C)

(0 to 85°C)

(0 to 85°C)

(0 to 85°C)

IO

VOFF

VFSO

VFSS

—

∆V/∆Ρ

—

0.133

4.826

—

—

—

7.0

0.204

4.896

4.692

—

20

10

0.264

4.966

—

±1.5

—

mAdc

VDC

VDC

VDC

%VFSS

mV/kPa

Response Time(7)

tR

—

1.0

—

msec

Output Source Current at Full Scale Output

Warm-Up Time(8)

IO+

—

0.1

—

mAdc

—

—

20

—

msec

Offset Stability(9)

—

—

±0.5

—

%VFSS

1. 1.0 kPa (kiloPascal) equals 0.145 psi.

2. Device is ratiometric within this specified excitation range.

3. Offset (VOFF) is defined as the output voltage at the minimum rated pressure.

4. Full Scale Output (VFSO) is defined as the output voltage at the maximum or full rated pressure.

5. Full Scale Span (VFSS) is defined as the algebraic difference between the output voltage at full rated pressure and the output voltage at the

minimum rated pressure.

6. Accuracy (error budget) consists of the following:

• Linearity:

Output deviation at any temperature from a straight line relationship with pressure 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 within the specified range, when this pressure is cycled to and from the

minimum or maximum rated pressure, at 25°C.

• TcSpan:

Output deviation 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.

• Variation from Nominal: The variation from nominal values, for Offset or Full Scale Span, as a percent of VFSS, at 25°C.

7. 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.

8. Warm-up Time is defined as the time required for the product to meet the specified output voltage after the pressure is stabilized.

9. Offset stability is the product’s output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test.

Table 3. Mechanical Characteristics

Characteristics

Weight, Basic Element (Case 867)

Weight, Small Outline Package (Case 482)

Typ

Unit

4.0

Grams

1.5

Grams

Sensors

Freescale Semiconductor

MPX4250A

3

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