MLX90240
Pressure Sensor IC
3901090240 Pressure sensor IC
Page 1
Rev 003
Features and Benefits
0 350mBar Range
Differential pressure sensor
Compact Design
High Long Term Stability
Low Cost
Applications
Medical Instrumentation (Blood Pressure)
Consumer Appliances
Sports Equipment
Pressure Difference and Flow Monitoring
Ordering Information
Part No.
Temperature Suffix
Package Code
MLX90240
C (0C to 70C)
PA (SO-8 `tophat' package)
MLX90240
C (0C to 70C)
UF (Die on Foil)
Functional Diagram
Description
The MLX90240 is a discrete micromachined
Pressure sensor IC suitable for pressure ranges
between 0 to 350mBar. The pressure medium
must be dry and non-corrosive, such as air.
The 90240 is packaged in a plastic/ceramic
package, (CA) or can be ordered as unpackaged
die (UD).
The circuit is a piezoresistive bridge which is
realized in silicon through a special
micromachining process. As pressure is applied
to the bridge, a differential voltage change is
seen across the V
out
pins, while a bias voltage is
applied to the V
exc
pins.
The MLX90240 is a versatile pressure sensor
solution which can be directly interfaced with
other Melexis ICs such as the MLX90308, which
provides amplification, signal conditioning as
well as the bias current to supply the sensor
itself.
MLX90240
Pressure Sensor IC
3901090240 Pressure sensor IC
Page 2
Rev 003
MLX90240 Electrical Specifications
DC Operating Parameters T
A
= 25C, V
DD
= 5V (note 3), Pressure = 1.0 Bar full scale.
Parameter
Min
Typ
Max
Units
Excitation voltage
0
5
12 V
TC of the Offset
-15
-21
-25 V/C
Sensitivity
43
58
71 mV/V/bar
TC of the Sensitivity (1)
-0.17 -0.21 -0.26 %/C
Bridge Impedance
12
14
16 kOhm
TC of the Bridge (1)
0.057 0.063 0.066 %/C
Non linearity (3)
0
+/- 0.15 +/-0.30 %FS
Hysteresis
0.1 %FS
Offset Long term stability (2)
0.5 %FS
Sensitivity Long term stability (2)
0.3 %FS
Burst pressure
5x
FS pressure
Operating temp
0
70 C
Storage temp
-40
125 C
Notes:
1)
Between 0 and 70C
2)
After 100 thermocycles 0 - 70C
3)
1 mil pressure cycles 0 350 mbar
4)
Typical 0.5% FS for 0-500 mbar range
MLX90240
Pressure Sensor IC
3901090240 Pressure sensor IC
Page 5
Rev 003
Reliability Information
Melexis devices are classified and qualified regarding suitability for infrared, vapor phase and wave
soldering with usual (63/37 SnPb-) solder (melting point at 183degC).
The following test methods are applied:
IPC/JEDEC J-STD-020A (issue April 1999)
Moisture/Reflow Sensitivity Classification For Nonhermetic Solid State Surface Mount Devices
CECC00802 (issue 1994)
Standard Method For The Specification of Surface Mounting Components (SMDs) of Assessed Quality
MIL 883 Method 2003 / JEDEC-STD-22 Test Method B102
Solderability
For all soldering technologies deviating from above mentioned standard conditions (regarding peak
temperature, temperature gradient, temperature profile etc) additional classification and qualification tests
have to be agreed upon with Melexis.
The application of Wave Soldering for SMD's is allowed only after consulting Melexis regarding assurance
of adhesive strength between device and board.
For more information on manufacturability/solderability see quality page at our website:
http://www.melexis.com/
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