Sensors

4

Freescale Semiconductor

MPXHZ6400A

Figure 2 illustrates a typical application circuit (output

source current operation).

pressure input. Typical minimum and maximum output

curves are shown for operation over 0 to 85

°C temperature

range. The output will saturate outside of the rated pressure

range.

A gel die coat isolates the die surface and wire bonds from

the environment, while allowing the pressure signal to be

transmitted to the silicon diaphragm. The MPXHZ6400A

series pressure sensor operating characteristics, internal

reliability and qualification tests are based on use of dry air as

the pressure media. Media other than dry air may have

adverse effects on sensor performance and long-term

reliability. Contact the factory for information regarding media

compatibility in your application.

Figure 2. Typical Application Circuit

(Output Source Current Operation)

Figure 3. Output versus Absolute Pressure

+5.0 V

GND Pin 3

MPXHZ6400A

To ADC

100 nF

51 K

47 pF

Pressure (Reference to Sealed Vacuum) in kPa

Transfer Function:

Temperature = 0 to 85°C

MIN

TYP

MAX

4.5

0

4.0

5.0

1.0

1.5

2.0

2.5

3.0

3.5

0.5