MLX90809 Datasheet, PDF (4/11 Pages) Melexis Microelectronic Systems – Relative Pressure Sensor

MLX90809
Relative Pressure Sensor
6 General Electrical Specifications
DC Operating Parameters T_A = -40^°C to 150^°C, V_DD = 5V (unless otherwise specified).
Parameter
Nominal supply voltage
Nominal supply current
Load resistance
Capacitive load
Diagnostic limits
Clamping levels
Symbol Remarks
Min
Vdd
4.5
Idd
No output load connected
Rload
Pull up or Pull down
4.7
Cload
2.2
Diag low ^{Pull up > 4.7kOhm}
Diag high ^{Pull down>4.7kOhm}
96
Diag high ^{Pull down>10kOhm}
98
Clamp low ^{Programmable range with 8 bit resolution for the low} 0
Clamp high
clamping level, 9 for the high (for the default
programmed levels see section 8), +/-10mV accuracy
50
on the programmed clamping level
Analog saturation output level Vsat high
Typ Max
5 5.5
78
470
2
25
100
97
Vsat low
2
Power up time
Response time
Programmable pressure spans
(Positive pressure on package
top side, see remark 3, 5)
Time from reaching minimum allowed supply voltage of
5.5
4.5V till having the output within specification
Time needed for the output to react to a pressure
1
change from 10% to 90% of its final value (pressure
change corresponding to maximum a 4V output
change). Using default filter settings SSF = 1, PFLT =
0.
The pressure spans defined correspond to an analog _0.5
1
output span of 4V or to the 12 bit pressure information
on the SENT output
Programmable pressure spans
(vacuum on package top side,
see remark 3,5)
The pressure spans defined correspond to an analog _Remark
-0.5
output span of 4V or to the 12 bit pressure information
on the SENT output
4
Overall accuracy
Ratiometricity error
Taking into account the drifts over temperature and
1.5
over life
0.2
Units
V
mA
kOhm
nF
%Vdd
%Vdd
%Vdd
%Vdd
%Vdd
%Vdd
%Vdd
msec
msec
bar
Relative
bar
Relative
%FSO
%Vdd
Output noise analog output
Output noise SENT output
BW limited to 50kHz. Using default filter settings SSF =
1, PFLT = 0.
BW limited to 50kHz. Using default filter settings SSF =
1, PFLT = 0.
Table 4: Electrical specifications
2
mVrms
1.8 LSBrms
Remark 3: The top side of the package is defined as the side with the small hole and readable marking.
Remark 4: There are no limitations on the vacuum level that the MLX90809 can measure.
Remark 5: The pressure span is defined as being equal to UPL-LPL (upper pressure limit minus lower
pressure limit like described for the default calibrated curve in paragraph 8). The atmospheric pressure
should always belong to the programmed transfer function.
Rev 002
390109080901
Page 4 of 11
Data Sheet
Oct/14