MPXM2202AS Просмотр технического описания (PDF) - Freescale Semiconductor

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MPXM2202AS

200 kPa On-Chip Temperature Compensated Silicon Pressure Sensors

Freescale Semiconductor 

Pressure

Maximum Ratings

Table 2. Maximum Ratings(1)

Rating

Max Value

Unit

Maximum Pressure (P1 > P2)

Storage Temperature

Operating Temperature

400

-40 to 125

-40 to 125

kPa

°C

°C

1. Exposure beyond the specified limits may cause permanent damage or degradation to the device.

Voltage Output versus Applied Differential

The differential voltage output of the sensor is directly

proportional to the differential pressure applied.

The absolute sensor has a built-in reference vacuum. The

output voltage will decrease as vacuum, relative to ambient,

is drawn on the pressure (P1) side.

The output voltage of the differential or gauge sensor

increases with increasing pressure applied to the pressure

VS

3

(P1) side relative to the vacuum (P2) side. Similarly, output

voltage increases as increasing vacuum is applied to the

vacuum (P2) side relative to the pressure (P1) side.

Figure 1 illustrates a block diagram of the internal circuitry

on the stand-alone pressure sensor chip.

Sensing

Element

Thin Film

Temperature

Compensation

and Calibration

Circuitry

2

+VOUT

4 –VOUT

1

GND

Figure 1. Temperature Compensated and Calibrated

Pressure Sensor Schematic

MPX2202

4

Sensors

Freescale Semiconductor

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