MLX90819 datasheet(1/11 Pages) MELEXIS

Numer części	MLX90819

Szczegółowy opis	Relative Integrated Pressure Sensor Datasheet

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Producent	MELEXIS [Melexis Microelectronic Systems]

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MLX90819

Relative Integrated Pressure Sensor Datasheet

REVISION 3 – OCTOBER 20, 2016

3901090819

1. Features and Benefits

 Fully integrated IC: MEMS, analog front

end, 16 bit microcontroller, analog back

end, voltage regulators, SENT driver

 Ratiometric Analog and SENT outputs

 Automotive temperature (-40°C to 150°C)

 Automotive qualified beyond AECQ100

 Automotive diagnostic features (clamping

levels, broken track diagnostics, multiple

internal fault diagnostics)

 Glass pedestal for easy assembly and for

back side exposed configuration for higher

resistance to common automotive media

 High accuracy and robust EMC

performance

2. Application Examples

 Mid pressure ranges (10..50bar)

 Automotive oil (engine, transmissions)

 Automotive HVAC

 Automotive fuel line

 Industrial applications

3. Description

The MLX90819 is an integrated relative pressure sensor

delivering a ratiometric analog or digital (using the SENT

protocol) signal.

Use of an optimized architecture and a high density

CMOS technology imparts the MLX90819 with best in

class automotive EMC performance. A DSP based

architecture using a 16bit microcontroller provides

outstanding performance in terms of initial accuracy.

The MLX90819 is mounted on a glass pedestal to ease the

assembly of the die at the customers being the ideal

solution

for back

side

exposed

pressure

sensor

applications

requiring

high

accuracy,

high

EMC

robustness, miniaturization and compliance to harsh

automotive environments (See application note 90819

Pressure Sensor Assembly Guidelines).

Figure 1: Block Diagram

Piezoresistive

sensing element

M

U

X

G

Temperature

Sensor

Diagnostic

Signals

VDD

OUT

GND

D

A

D

A

Gain

TX

(SENT)

DSP

C

RAM

EEP

ROM

Gain & Offset

temperature

compensation

Pressure Linearization

Programmable filter

Diagnostics Logic

Analog/

Digital

Regulator

Rev. Pol.

&

OverVolt.

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