PRESSURE OUTPUT CHARACTERISTICS
With the calibration data stored in the interface IC of the MS5561, the following characteristics can be achieved:
(VDD = 3.0 V unless noted otherwise)
Typ
Max
Unit
Notes
0.1
-1.5
-0.5
-1
-2
-1
-1.6
+1.6
+1.5
+0.5
+1
+3
mbar
mbar
mbar
mbar
mbar
mbar
mbar
1
2
3
4
4
5
Parameter
Resolution
Absolute Pressure Accuracy
Relative Pressure Accuracy
Relative Pressure Error over
Temperature
Long-term Stability
Maximum Error over Supply
Voltage
Conditions
p = 300 .. 1000 mbar
T
a
= 25°
C
p = 750 .. 1100 mbar
T
a
= 25°
C
p = 750 .. 1100 mbar
T
a
= 25°
C
T = 0 .. +50°
C
p = 300 .. 1000 mbar
T = -40 .. +85°
C
p = 300 .. 1000 mbar
12 months
VDD = 2.2 .. 3.6 V
p = const.
Min
NOTES
1) A stable pressure reading of the given resolution requires taking the average of 2 to 4 subsequent pressure
values due to noise of the ADC.
2) Maximum error of pressure reading over the pressure range.
3) Maximum error of pressure reading over the pressure range after offset adjustment at one pressure point.
4) With the second-order temperature compensation as described in Section “FUNCTION". See next section for
typical operating curves.
5) The long-term stability is measured with non-soldered devices.
TEMPERATURE OUTPUT CHARACTERISTICS
This temperature information is not required for most applications, but it is necessary to allow for temperature
compensation of the pressure output.
(VDD = 3.0 V unless noted otherwise)
Typ
Max
Unit
Notes
0.01
0.015
0.8
+3
+ 0.2
°
C
°
C
°
C
°
C
1
2
Parameter
Resolution
Accuracy
Maximum Error over Supply
Voltage
Conditions
Min
0.005
T = 20°
C
T = -40 .. +85°
C
VDD = 2.2 .. 3.6 V
-0.8
-2
-0.2
NOTES
1) With the second-order temperature compensation as described in Section “FUNCTION". See next section for
typical operating curves.
2) At Ta = 25 °
C
DA5561_03
000055611126 – ECN1158
January 5, 2009
5
INTERSEMA [ INTERSEMA SENSORIC SA ]
