BAE-015 = 0.1 to 4bar absolute pressure / 193 to 3896LSB SENT output / no NTC
BAE-016 = 0.1 to 3bar absolute pressure / 193 to 3896LSB SENT output / NTC
BAE-017 = 0.1 to 4bar absolute pressure / 193 to 3896LSB SENT output / NTC
RE = Reel
MLX90818LXE-BAE-015-RE
REVISION 002 – 8 DECEMBER 2017
3901090818
Page 1 of 37
MLX90818
Absolute Pressure Sensor
4. Functional Diagram
Temperature
sensor
Piezoresistive
sensing element
Test
Broken wire
detection
Overvoltage &
reverse voltage
protection
5. General Description
Supply
Gain & Offset
compensation
DSP
M
U
X
ADC
16 bits
Analog & Digital
Regulator and
POR
OPA
Micro controller
Gain & Offset temperature
compensation
Pressure lineariztion
Programmable filter
Diagnostics Logic
Slew
rate
control
SENT
driver
Diagnostic signals
SENT
Output
Rom
FW
NTC interface
EE
PROM
Ram
Ground
NTC (optional)
Figure 1: Functional block diagram
The MLX90818 is a packaged, factory calibrated,
absolute pressure sensor delivering a digital
output signal using the SENT protocol.
Use of an optimized architecture and a high
density CMOS technology imparts the MLX90818
with best in class automotive EMC performance.
A DSP based architecture using a 16bit
microcontroller
provides
outstanding
performance in terms of initial accuracy.
A smart package and die assembly concept suits
applications
with
stringent
automotive
temperature and stress conditions needing small
drift over life.
REVISION 002 – 8 DECEMBER 2017
3901090818
Page 2 of 37
MLX90818
Absolute Pressure Sensor
Contents
1. Features and Benefits ............................................................................................................................ 1
5. General Description ............................................................................................................................... 2
6. Glossary of Terms .................................................................................................................................. 4
7. Absolute Maximum Ratings ................................................................................................................... 4
8. Pin Definitions and Descriptions ............................................................................................................ 5
9. General Electrical Specifications ............................................................................................................ 6
10. Detailed General Description............................................................................................................... 7
13. Analog Front End ............................................................................................................................... 15
15. Digital ................................................................................................................................................ 17
16. NTC Temperature Linearization ......................................................................................................... 18
17. SENT Configuration............................................................................................................................ 19
17.1. Fast Channel Configuration ............................................................................................................ 19
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