FEATURES AND BENEFITS
• 3D magnetic sensor enables flexible mechanical
integration for contactless linear and rotary position
applications
• Configurable signal path processing and on-chip angle
calculation for accurate 360° and short stroke (<360°)
rotary applications
• Multiple programmable linearization options for
maximum measurement accuracy:
□ Piecewise-linear and binning modes
□ Up to 33-point fixed position
□ Up to 22-point programmable positions
• PWM and SENT (SAE J2716) output formats
• Integrated IC diagnostics for high reliability
• Developed in accordance with ISO 26262 requirements
for hardware product development for use in safetycritical
applications targeting ASIL B compatibility
(pending assessment)
• Broken wire detection
• 5 V operation with Undervoltage Detection (UVD)
• Built-In Self-Test (BIST) Diagnostic Capability
• Wide operating temperature range: –40°C to 150°C
• In package passives remove the need for external support
circuitry.

DESCRIPTION
The A31316 is a robust 3D Hall-effect magnetic position sensor
designed for on-axis and off-axis rotary as well as linear stroke
position measurement in automotive, industrial, and consumer
applications.
This sensor integrates vertical and planar Hall-effect elements
with precision temperature-compensation circuitry to detect
two out of three magnetic field components (X, Y, and Z).
Configurable signal processing, linearization, and angle
calculation allows the A31316 to accurately resolve the absolute
rotary (full 360° and short stroke <360°) or linear position of
a moving magnetic target.
The A31316 features PWM or SENT (SAE J2716) interface
options to output the angle between the two factory-selected
axes or the field form a single axis. In addition, the SENT
interface provides the option to output the field measurement
from both channels.
On-chip EEPROM technology, capable of supporting up to
100 write cycles, is integrated for flexible programming of
configuration and calibration parameters and includes bits
provided for customer device identification purposes.
The A31316 contains on-chip diagnostic features required for
high reliability automotive applications, including monitors of
both internal and external fault conditions.
Developed in accordance with ISO 26262 as a hardware safety
element out of context (SEooC) with ASIL B capability for
use in automotive safety-related systems when integrated and
used in the manner prescribed in the applicable safety manual
and datasheet.