MLX90809 Datasheet, PDF (6/11 Pages) Melexis Microelectronic Systems – Relative Pressure Sensor

MLX90809
Relative Pressure Sensor
8 Programmed Settings
The MLX90809 is calibrated at the final manufacturing test step. During the calibration, settings are stored in
the on chip (16x32bit) EEPROM to define the pressure transfer curve as well as the output clamping levels.
Together with the transfer functions, the IC filter values are set. The default programmed filter settings lead to
the noise level and response times described in paragraph 6. The transfer functions calibrated in the different
MLX90809LXG-EAD-xxx products with its corresponding performance level maintained over the full
temperature range and over life is described for each specific option code below.
The MLX90809 can be programmed for pressure spans like those described in paragraph 6 with the
atmospheric pressure always inside of the application range.
Contact Melexis for information on the expected accuracy for other ranges or transfer functions than the
default programmed ones.
Melexis can support customers delivering parts calibrated with other settings or can support customers by
delivering the necessary programming hardware, software and documentation to be able to program the
transfer function on the customers manufacturing line. To learn how to use the Melexis hardware and
software to program the MLX90809 read the application note “MLX90809 PTC04 Software Description”.
8.1 MLX90809LXG-EAD-000
DC Operating Parameters T_A = -40^°C to 150^°C, V_DD = 5V.
Parameter
Symbol Remarks
Pressure 1
P1
Transfer curve: Figure 3
Pressure 2
P2
Output 1
O1
Output 2
O2
Parameter
Low clamping level
Symbol Remarks
LCL
High clamping level HCL
Output accuracy
εo
Overall accuracy expressed as output value
Pressure accuracy εp
Overall accuracy expressed as pressure value
Value
Unit
0.05
Bar
-1.05
Bar
0.5
V
4.5
V
Min Typ Max Unit
0.49 0.5 0.51 V
4.49 4.5 4.51 V
-60
60
mV
-16.5
16.5 mBar
8.2 MLX90809LXG-EAD-003
DC Operating Parameters T_A = -40^°C to 150^°C, V_DD = 5V.
Parameter
Symbol Remarks
Pressure 1
P1
Transfer curve: Figure 4
Pressure 2
P2
Output 1
O1
Output 2
O2
Parameter
Low clamping level
Symbol Remarks
LCL
High clamping level HCL
Output accuracy
εo
Overall accuracy expressed as output value
Pressure accuracy εp
Overall accuracy expressed as pressure value
Value
Unit
0
Bar
1
Bar
0.5
V
4.5
V
Min Typ Max Unit
0.49 0.5 0.51 V
4.49 4.5 4.51 V
-60
60
mV
-15
15
mBar
Rev 002
390109080901
Page 6 of 11
Data Sheet
Oct/14