Melexis MLX90269 Technical data

查询MLX90269LUF-1供应商

Features and Benefits

 Absolute 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

Application Examples

 Water pressure
 Oil pressure
 Manifold Air Pressure

MLX90269

Absolute Integrated Pressure Sensor

Ordering Information

Part No. Temperature Suffix Package Code Option Description
MLX90269 L (-40°C to 150°C) UF (die on foil) - 1 1.2 to 3 Bar Full Scale

1. Functional Diagram

VDD

Chopper

demodulator

Temperature

sensor

Diagnostics

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 7 Bar full scale ranges,
see above ordering information).

ADC

DIGITAL CORE

DAC

Gain

calibration

OUT

2. Description

The MLX90269 is an integrated
absolute pressure sensor (0 Bar
= vacuum) 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.

The output is proportional to the

3901090269 Page 1 of 9 Data Sheet
Rev. 006 Mar/08

Absolute Integrated Pressure Sensor

TABLE OF CONTENTS

MLX90269

1. FUNCTIONAL DIAGRAM...................................................................................................................... 1

2. DESCRIPTION....................................................................................................................................... 2

3. ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 3

4. MLX90269 ELECTRICAL SPECIFICATIONS ...................................................................................... 3

5. GENERAL DESCRIPTION .................................................................................................................... 4

6. UNIQUE FEATURES ............................................................................................................................. 4

7. PERFORMANCE GRAPHS................................................................................................................... 5

8. APPLICATION INFORMATION ............................................................................................................ 6

9. DIE DIMENSION AND PAD COORDINATES....................................................................................... 7

10. CALIBRATION AND PROGRAMMING PROCEDURE ........................................................................ 7

11. ESD PRECAUTIONS............................................................................................................................. 8

12. DISCLAIMER ......................................................................................................................................... 9

3901090269 Page 2 of 9 Data Sheet
Rev. 006 Mar/08

MLX90269

Absolute Integrated Pressure Sensor

3. Absolute Maximum Ratings

Parameter Min Max

Supply Voltage, VDD -14V 16V

Output Voltage, V

Storage Temperature Range, TS

ESD Sensitivity (AEC Q100 002) -2 kV 2 kV

Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute­maximum-rated conditions for extended periods may affect device reliability.

4. MLX90269 Electrical Specifications

DC Operating Parameters TA = -40oC to 150oC, VDD = 5V (unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Units

-0.5V 16V

out

-55°C 165°C

OPERATIONAL FEATURES

Supply Voltage VDD Operating 4.5 5 5.5 V

Supply Current IDD V

= 5V ± 10%, excluding

DD

4 6 10 mA

output current

Output Current Capability I

Pressure output @ zero pressure V

Pressure output @ full scale pressure V

Low Clamping Level

High Clamping Level

DIAGNOSTIC FEATURES

V

out

out

out

V

out

V

out

= 5V -3 3 mA

DD

V

= 5V 0.46 0.5 0.54 V

DD

V

= 5V 4.46 4.5 4.54 V

DD

5

90

10

95 % VDD

% V

DD

Output when sensor is broken Sensor broken 2 % VDD

Output when VDD is broken Pull-Up > 4.7K 5

Output when VSS is broken Pull-Down > 10K

95

% VDD

% VDD

Response Time (to reach 1% error) 2 ms

3901090269 Page 3 of 9 Data Sheet
Rev. 006 Mar/08