ASBSERIES datasheet(14/16 Pages) EPCOS

14 / 16 page

Pressure sensors

Barometric pressure transmitters for SMT

ASB series

Preliminary data

AS SEN PD

2011-05-02

Please read Cautions and warnings and

Page 14 of 16

Important notes at the end of this document

Symbols and terms

Storage temperature range Tst

A storage of the pressure sensor within the temperature range Tst,min up to Tst,max

and without applied pressure and supply voltage will not affect the performance of the pressure sensor.

Operating temperature range Top

An operation of the pressure sensor within the temperature range Top,min up to Top,max

will not affect the performance of the pressure sensor.

Compensated temperature range Tc

While operating the pressure sensor within the temperature range Tc,min up to Tc,max,

the deviation of the output signal from the values at 25 °C will not exceed the temperature coefficients.

Out of the compensated temperature range, the deviations may increase.

Rated pressure pr

Within the rated pressure range 0 up to pr,max the signal output characteristic corresponds to this specification.

Overpressure pOV

Pressure cycles within the pressure range 0 up to pov will not affect the performance of the pressure sensor.

Supply voltage Vsupply

Vsupply,max is the maximum permissible supply voltage, which can be applied without damages.

Vsupply,min is the minimum required supply voltage, which has to be applied for normal operation.

Signal output current IA

IA,max is the maximum permissible sink current of the signal output.

Exceeding (e.g. short circuit) may cause irreparable damages.

Start up time tSTA

Time between the start up of the normal operation after power on and the first valid output signal.

Offset Vout,0

The offset Vout,0 is the signal output VA(p = 0) at zero pressure.

10) Signal span (Full Scale)

Simple output:

VFS = FS = Vout(pr,max) – VA0

11) Non-linearity L (including pressure hysteresis)

The non-linearity is the deviation of the real sensor characteristic VA = f(p) from the ideal straight line.

It can be approximated by a polynomial of second order, with the maximum at px = pr / 2 .

The equation to calculate the non-linearity is:

out

−

)

(

)

(

12) Response time t

10-90

Delay between a pressure change (10 ... 90% pr) and the corresponding signal output change (10 ... 90% FS).

13) Resolution r

OUT

The resolution of the output DAC (digital/analog converter). For ratiometric output only 80% of DAC range is used.

ASBSERIES Datasheet(PDF) 14 Page - EPCOS

ASBSERIES Datasheet(HTML) 14 Page - EPCOS

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL