MLX90255LUF-2 MELEXIS [Melexis Microelectronic Systems], MLX90255LUF-2 Datasheet

no-image

MLX90255LUF-2

Manufacturer Part Number
MLX90255LUF-2
Description
Relative Integrated Pressure Sensor
Manufacturer
MELEXIS [Melexis Microelectronic Systems]
Datasheet
Temperature
Diagnostics
Features and Benefits
Application Examples
Ordering Information
Part No.
MLX90257
MLX90257
The output is proportional to the applied pressure with an adjustable slope and offset. It is ratiometric and
goes rail-to-rail with a 3mA source and sink capability. Different pressure ranges are available (from 1.2 to
10 Bar full scale ranges, see above ordering information).
3901090257
Rev. 006
sensor
Relative Integrated Pressure sensor
Less than ±1% error range overall
Programmable through the connector (3 pins)
Trimmable offset and sensitivity
On-Chip Signal Conditioning
Output proportional to the applied pressure
Ratiometric output
Rail-to-rail output
Diagnostics of broken supply wires and broken sensor
Output protected against short-circuits at both battery terminals
Different pressure ranges available
Medical diagnostics
Pumps
Industrial applications
Robotics
1. Functional Diagram
ADC
VDD
DIGITAL CORE
Temperature Suffix
L (-40°C to 150°C)
L (-40°C to 150°C)
DAC
Package Code
UF (die on foil)
UF (die on foil)
demodulator
Chopper
Page 1 of 9
Relative Integrated Pressure Sensor
calibration
Gain
Option
- 2
- 4
OUT
The MLX90257 is an integrated
relative pressure sensor (2
pressure ports) realized in
CMOS technology with
micromachining options. It
consists of an analog signal
chain that interacts with the
digital core and on-chip
temperature sensor in order to
provide uniform overall sensing
characteristics after calibration
and to cancel the temperature
related parameter drifts.
2. Description
MLX90257
Description
3 to 7
15 to 30 Bar Full Scale
Bar Full Scale
Data Sheet
Mar/08

Related parts for MLX90255LUF-2

MLX90255LUF-2 Summary of contents

Page 1

Features and Benefits Relative Integrated Pressure sensor Less than ±1% error range overall Programmable through the connector (3 pins) Trimmable offset and sensitivity On-Chip Signal Conditioning Output proportional to the applied pressure Ratiometric output Rail-to-rail output Diagnostics of broken supply ...

Page 2

FUNCTIONAL DIAGRAM...................................................................................................................... 1 2. DESCRIPTION....................................................................................................................................... 2 3. ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 3 4. MLX90257 ELECTRICAL SPECIFICATIONS ...................................................................................... 3 5. GENERAL DESCRIPTION .................................................................................................................... 4 6. UNIQUE FEATURES ............................................................................................................................. 4 7. PERFORMANCE GRAPHS................................................................................................................... 5 8. APPLICATION INFORMATION ............................................................................................................ 6 9. DIE ...

Page 3

Absolute Maximum Ratings Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute- maximum-rated conditions for extended periods may affect device reliability. 4. MLX90257 Electrical Specifications DC Operating Parameters T = -40 A Parameter OPERATIONAL FEATURES DIAGNOSTIC ...

Page 4

General Description This chip integrates a pressure sensor and the associated signal conditioning on the same die. The supply voltage V directly supplies the pressure sensor chopped instrumentation stage amplifies the differential output signal of the sensor. ...

Page 5

Performance Graphs The graphs below show measured output voltages taken at 20 differential pressure points (0 mBar to 2000 mBar between pressure ports ambient temperature points (-50 to 150 Celsius) and with Vdd set to 4.5 V, ...

Page 6

Error versus Pressure with 50..150 C 1.5 1 0.5 0 -0.5 -1 -1.5 0 250 500 4.5V and 5.5V Ratiometricity Error versus Pressure with 50..150 C 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 ...

Page 7

Die dimension and pad coordinates Available upon request. 10. Calibration and Programming Procedure Programming in Temporary Memory The programming is done through the connector: only the application pins (supply, ground and output) need to be used. The programming can ...

Page 8

In order to check zapping, one can program Test Mode 22 = 10110b. Also 1 bit of the temporary memory should be ‘1’. If the zap cell – corresponding to the place of the ‘1’ in the temporary memory – ...

Page 9

Disclaimer Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied description regarding the information set forth herein or regarding the ...

Related keywords