A1454: 3 V Hall Effect Linear Sensor with I²C Output

The A1454 linear Hall effect sensor IC provides a 12-bit digital output word that is proportional to the strength of the magnetic field that is present. Its quiescent output value is at mid-scale, and it comes in 2 different factory programmed sensitivity ranges: 2LSB/G & 4LSB/G. The sensitivity temperature coefficient is also factory programmed to support either neodymium or ferrite magnets. The A1454 incorporates an I²C interface for easy integration into a wide variety of applications. The I²C address can either be set by external resistors or programmed via EEPROM, to support up to 127 unique I²C addresses, allowing for multiple ICs on the same bus. It also includes 16 bytes of user programmable EEPROM.

The A1454 I2C interface provides a user-controlled sleep input command that puts the device in micro-power mode, which reduces the current consumption of the A1454. This low power feature makes the A1454 perfect for portable, battery-operated applications.

The BiCMOS monolithic process allows the integration of both high precision analog and high-density digital circuitry. The A1454 integrates the Hall element, a 12-bit ADC, gain and offset compensation circuitry, EEPROM memory and the I²C interface on a single monolithic IC that is packaged in a space saving surface mount package.

DATASHEETS
SAMPLE & BUY

Astrorep Inc. (Allegro and Sanken Semiconductors, Sanken Power Supplies)
141 John Street, Suite 300
Babylon, NY 11702
Phone: (631)422-2500
Fax: (631)422-2504
Web: www.astrorepinc.com
Email: donna.tweedy@astrorepinc.com

If this is not your local representative, find your local sales rep here.

RECEIVE PRODUCT ALERTS
We'll notify you when there are updates to this product. Sign Up
  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • 1 mm thin (TSSOP-08) package
  • Two factory programmed sensitivity options: 2 LSB/G (for fields up to ±1000 G) and 4 LSB/G (±500 G)
  • Temperature-stable sensitivity for NdFeB and ferrite magnets
  • I²C interface for easy integration with support for up to 127 unique addresses
  • EEPROM stores factory programmed settings and up to 16 bytes of user information (programmable through the I²C interface)
  • Micro-power sleep mode through I²C command for minimizing power in battery-operated applications
  • Precise recoverability after temperature cycling
  • Wide ambient temperature range: –40°C to 125°C
  • 12-bit ADC with 10-bit ENOB (Effective Number of Bits)
Package

Click the image to view larger
Product Image Functional Block Diagram Typical Application

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
ASEK1454KLE-2F-T n/a -20°C to 85°C -- View Data Contact your
local sales rep
Check Stock
ASEK1454KLE-2N-T n/a -20°C to 85°C -- View Data Contact your
local sales rep
Check Stock
ASEK1454KLE-4F-T n/a -20°C to 85°C -- View Data Contact your
local sales rep
Check Stock
ASEK1454KLE-4N-T n/a -20°C to 85°C -- View Data Contact your
local sales rep
Check Stock
A1454KLETR-2F-T 8-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Check Stock
A1454KLETR-2N-T 8-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Check Stock
A1454KLETR-4F-T 8-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Check Stock
A1454KLETR-4N-T 8-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Check 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.

Copyright © 2017 Allegro MicroSystems, LLC

Sitemap  |  Privacy Policy  |  Contact Webmaster

Follow us on: LinkedIn YouTube Google+ Follow Allegro on Twitter

Careers   |   Contact Sales   |   Home   |   Legal   |   Quality & Environment   |   Request Samples