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.