mlx90320 Melexis Company, mlx90320 Datasheet

mlx90320

Manufacturer Part Number

mlx90320

Description

Automotive Smart Sensor Interface Ic

Manufacturer

Melexis Company

Datasheet

1.MLX90320.pdf (32 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

mlx90320LFR-BBA-000-RE

Manufacturer:

MELEXIS/迈来芯

Quantity:

20 000

Current page: 1 of 32
Download datasheet (625Kb)

1 Functional diagram

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Features and Benefits

Ordering Information

Part No.

MLX90320LFR

3901090320

Rev 004

Suited cost optimized sensors: gain and

offset correction by programmable

coefficients

Higher order temperature compensation

provided for both gain and offset

External or internal temperature sensor

for compensation of temperature errors

Over-voltage protection

Fault detection and clamping levels

Ratio-metric output: 0 to 5V

Single Pin Digital Programming

Fully analog signal path

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Page 1 of 32

2 General description

The MLX90320 covers the most typical resistive

type of Wheatstone bridge applications for use in an

automotive environment. It is a monolithic silicon

analog integrated sensor interface that converts

small changes in resistors, configured in a full

Wheatstone bridge on a sensing element, to large

output voltage variations.

The signal conditioning includes gain adjustment,

offset control and second order temperature

compensation in order to accommodate variations of

the different resistive sensing elements.

Compensation values are stored in EEPROM and

can be reprogrammed with an interface circuit and a

provided software. The MLX90320 is programmed

with a single wire serial interface through the output

pin.

The user can specify on chip clamping levels thus

creating fault detection bands. By intercepting

various fault modes the MLX90320 is able to inform

about the reliability of its analog output signal.

Package Code

FR (SSOP 209 mil)

Automotive small sensor interface

Applications Examples

Pressure transducers, strain gauges,

accelerometers, position sensors, etc.

Steering systems (e.g. torque sensors)

Safety restraints systems (e.g. seat

occupant detection)

Braking systems (e.g. ABS, force)

Comfort systems (e.g. air conditioning)

Engine management (e.g. injection)

Any bridge type sensor

MLX90320

Data Sheet

Mar/05

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