A1332: Precision Hall Effect Angle Sensor IC with I²C Interface

Description

The A1332 is a 360° contactless high resolution programmable magnetic angle position sensor IC. It is designed for digital systems using an I²C interface.

This system-on-chip (SoC) architecture includes a front end based on Circular Vertical Hall (CVH) technology, programmable microprocessor based signal processing, and digital I²C interface. Besides providing full-turn angular measurement, the A1332 also provides scaling for angle measurement applications less than 360°. It includes on-chip EEPROM technology for flexible programming of calibration parameters.

Digital signal processing functions, including temperature compensation and gain/offset trim, as well as advanced output linearization algorithms, provide an extremely accurate and linear output for both end of shaft applications, as well as off‑axis applications.

The A1332 is ideal for automotive applications requiring high speed 360° angle measurements, such as: electronic power steering (EPS), transmission, torsion bar, and other systems that require accurate measurement of angles. The A1332 linearization schemes were designed with challenging off-axis applications in mind.

The device is offered in a 14-pin TSSOP (LE) package, which has a single die. The package is lead (Pb) free, with 100% matte tin leadframe plating.

This part is discontinued. Samples are no longer available. Date of status change: December 5, 2018.

Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to the A1335LLETR-T.

Top Features

  • 360° contactless high resolution angle position sensor
  • CVH (Circular Vertical Hall) technology
  • Digital I2C output
  • Refresh Rate: 32 μs, 12-bit resolution
  • Automotive temperature range –40°C to 85°C
  • Two types of linearization schemes offered: harmonic linearization and segmented linearization
  • Linearization features enable use in off-axis applications
  • EEPROM with Error Correction Control (ECC) for trimming calibration
  • 1 mm thin (TSSOP-14) package
  • Automatic calibration features maintain angle accuracy over airgap

 A1332 and A1334 Angle Sensor IC Product Overview

Allegro’s family of contactless Hall magnetic high resolution 360° angle sensor ICs are designed for safety critical automotive and industrial applications. With their system-on-chip (SoC) architectures, they provide fast output refresh rates and low signal path latency. They are ideal for applications requiring high speed and accurate 0° to 360° angle measurements. Watch this video to learn more.

 A1332 and A1334 Angle Sensor IC Product Overview

Allegro’s family of contactless Hall magnetic high resolution 360° angle sensor ICs are designed for safety critical automotive and industrial applications. With their system-on-chip (SoC) architectures, they provide fast output refresh rates and low signal path latency. They are ideal for applications requiring high speed and accurate 0° to 360° angle measurements. Watch this video to learn more.

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
ASEK-1332-SUBKIT-T DEMO BOARD -20°C to 85°C No -- Discontinued Contact your
local sales rep
Check
Distributor Stock
ASEK-1332-T-KIT DEMO BOARD -20°C to 85°C No -- Discontinued Contact your
local sales rep
Check
Distributor Stock
A1332KLETR-T 14-lead TSSOP -40°C to 125°C Yes View Data Discontinued Contact your
local sales rep
Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Packaging

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