DA7801_005.doc

May 05th, 2005

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00007801345

ECN 743

FULL SCALE PRESSURE

kPa

bar

mbar

PSI

atm

mm Hg

100

1

1000

14.5

0.987

750

10.197

401

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Conditions

Min

Max

Unit

Supply voltage

VS+

20

V

Storage temperature

-40

+150

Pressure overload

5

Bar

ELECTRICAL CHARACTERISTICS

(Reference conditions: Supply Voltage VS+ = 5 Vdc; Ambient Temperature Ta = 25°C )

Parameter

Min

Typ

Max

Unit

Notes

Operating Pressure Range

0

1

Bar

Operating Temperature Range

-40

125

°C

Bridge Resistance

3.0

3.4

3.8

k

Ω

Full-scale span (FS)

120

150

180

mV

Zero Pressure Offset

-40

0

40

mV

Linearity

± 0.05

± 0.2

% FS

1

Temperature Coefficient of Resistance

Span

Offset

+ 2400

- 1500

- 80

+ 2800

- 1900

+ 3300

- 2300

+ 80

ppm/°C

ppm/°C

µV/°C

2

Pressure Hysteresis

± 0.05

± 0.15

% FS

3

Repeatability

± 0.05

± 0.15

% FS

4

Temperature Hysteresis

0.3

% FS

5

NOTES

1) Deviation at one half full-scale pressure from the least squares best line fit over pressure range (0 to 1 bar).

2) Slope of the endpoint straight line from 25°C to 60°C.

maximum rated pressure, at 25°C.

4) Same as 3) after 10 pressure cycles

5) Maximum difference in offset after one thermal cycle from -40°C to +125°C.