(IMC) on its surface, the monolithic device senses,
in a contactless fashion, the horizontal component
of the applied magnetic flux density.
This unique sensing principle applied to a rotary
position sensor results into an impressive
robustness of the angular position over the
mechanical (airgap, off-axis) tolerances.
The rotation of this horizontal component is
sensed over a wide range (up to 360 Deg. -
complete revolution) and processed by the on-
chip DSP (Digital Signal Processing) to ultimately
report the absolute angular position of the
magnet either as a ratiometric analog output or as
PWM (Pulse-Width Modulation) signal or as a 14-
bit data accessible through a 3-pin SPI (serial
interface) channel.
The output transfer characteristic is fully
programmable (e.g. offset, gain, clamping levels,
linearity, thermal drift, filtering, range...) to match
any specific requirement through end-of-line
calibration. The Melexis programming unit PTC-04
communicates and calibrates the device
exclusively through the connector terminals (V
DD
-
V
SS
-O
UT
).
V
DD
V
DIG
SOIC-8
TSSOP-16
Applications
Absolute Rotary Position Sensor
Steering Wheel Position Sensor
Pedal Position Sensor
Motor-shaft Position Sensor
Throttle Position Sensor
Float-Level Sensor
Ride Height Position Sensor
Non-Contacting Potentiometer
Prot.
3V3
Reg
DSP
MUX
Triaxis
®
RAM
V
X
V
Y
EEPROM
Output Stage
12 bit Analog
OUT1
MOSI/MISO
OUT2
SCLK
Switch Out
/SS
G
ADC
µC
12 bit PWM
SPI
ROM - Firmware
V
SS
MLX90316 Rotary Position Sensor IC
Datasheet
Contents
Features and Benefits................................................................................................................................... 1
1. Ordering Information ............................................................................................................................... 5
10. Magnetic Specification ......................................................................................................................... 14
11. CPU & Memory Specification ............................................................................................................... 14
13.5.2. FIR Filters ................................................................................................................................ 25
15. Serial Protocol ...................................................................................................................................... 32
16.1. Analog Output Wiring in SOIC-8 Package .................................................................................... 37
16.2. Analog Output Wiring in TSSOP-16 Package ............................................................................... 38
REVISION 011 – AUGUST 17, 2017
Page 3 of 48
MLX90316 Rotary Position Sensor IC
Datasheet
16.3. PWM Low Side Output Wiring ..................................................................................................... 38
16.4. Serial Protocol .............................................................................................................................. 39
16.4.1. SPI Version – Single Die .......................................................................................................... 39
16.4.2. SPI Version – Dual Die ............................................................................................................ 40
16.4.3. Non SPI Version (Standard Version) ...................................................................................... 41
17. Standard information regarding manufacturability of Melexis products with different soldering
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