Pressure sensors

C32 series

Absolute pressure sensor die

Preliminary data

AS SEN PD

2009-08-03

Please read

Cautions and warnings and

Page 6 of 8

Important notes at the end of this document.

0

C

25

T

)

C

25

(

V

)

T

(

V

TCVo

max

o

max

o

°

−

°

−

=

+

C

25

T

)

C

25

(

V

)

T

(

V

TCVo

min

o

min

o

°

−

°

−

=

−

o

max

r

out

V

)

p

(

V

FS

−

=

max

r

o

max

r

out

p

V

)

p

(

V

S

−

=

This parameter is tested for process control on samples, mounted on a TO39 base.

This parameter may be influenced by assembly.

The nonlinearity is measured using the endpoint method. Assuming a characteristic, this can be approximated

using the equation:

max

r

x

o

max

r

out

o

x

out

p

p

V

)

p

(

V

V

)

p

(

V

L

−

−

−

=

This parameter is tested for process control on samples, mounted on a TO39 base.

α

α

β

β

These parameters may be influenced by assembly.

The temperature coefficients of sensitivity are tested for design verification on samples, mounted on a TO39 base

The temperature coefficients of first and second order are defined with the polynomial:

(

) (











°

−

β

+

°

−

α

+

°

=

=

2

S

S

C

25

T

C

25

T

1

)

C

25

T

(

S

)

T

(

S

The pressure hysteresis is the difference between output voltages at constant pressure and constant temperature while

FS

)

p

(

V

)

p

(

V

pHys

k

1

,

out

k

2

,

out

−

=

This parameter is tested for design verification on samples, mounted on a TO39 base.

“Reliability data” on the internet.