ThomasNet News Logo
Sign Up | Log In | ThomasNet Home | Promote Your Business

Direction Detection Sensor IC uses 2 Hall-effect switches.

Print Story
Print | 
email story Email |  Comment Comment   Share facebook twitter reddit StumbleUpon Delicious Digg  
February 22, 2013 - Providing digital output signals that indicate speed and direction of target rotation, Model A1233 is suited for ring magnet based, speed and direction systems located in harsh automotive and industrial environments. Dual-channel monolithic IC contains 2 independent Hall-effect bipolar switches that are located 1.63 mm apart and are photolithographically aligned to better than 1 Ám. High-frequency chopper-stabilization technique cancels offsets in each channel, providing stable operation.

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press Release

Allegro Microsystems, Inc.
115 N.E. Cutoff, P.O. Box 15036
Worcester, MA, 01615
USA



Allegro MicroSystems, Inc. Announces New Dual-Channel Hall-Effect Direction Detection Sensor IC


Low-Jitter, High-Speed, Chopper Stabilization Circuit

Worcester, MA– Allegro MicroSystems, Inc. announces a new dual-channel, Hall-effect direction detection sensor IC, providing various digital output signals that indicate speed and direction of a target rotation. The Hall elements are photolithographically aligned to better than 1 Ám. Maintaining accurate mechanical location between the two active Hall elements eliminates the major manufacturing hurdle encountered in fine-pitch detection applications. The A1233 is a highly sensitive, temperature stable magnetic sensing device ideal for use in ring magnet based, speed and direction systems located in harsh automotive and industrial environments.

Allegro’s A1233 monolithic integrated circuit (IC) contains two independent Hall-effect bipolar switches located 1.63 mm apart, which provides excellent speed and direction information for small-geometry targets. Extremely low-drift amplifiers guarantee symmetry between the switches to maintain signal quadrature. The Allegro« patented, high-frequency chopper-stabilization technique cancels offsets in each channel providing stable operation over the full specified temperature and voltage ranges.

Additionally, the high-frequency chopping circuits allow an increased analog signal-to-noise ratio at the input of the digital comparators internal to the IC. As a result, the A1233 achieves industry-leading digital output jitter performance that is critical in high performance motor commutation applications. An on-chip low dropout (LDO) regulator allows the use of this device over a wide operating voltage range. Post-assembly factory programming at Allegro provides sensitive switchpoints that are symmetrical between the two switches.

The A1233 is available in a plastic 8-pin SOIC surface mount package (L) and a plastic 4-pin SIP (K). Both are available in a temperature range of –40░C to 150░C. Each package is lead (Pb) free, with 100% matte tin plated leadframe.á Both the A1233LK-T and A1233LLTR-T are priced at $0.92 in quantities of 1,000.

Allegro MicroSystems, Inc. is a leader in developing, manufacturing and marketing high-performance semiconductors. Allegro's innovative solutions serve high-growth applications within the automotive market, with additional focus on office automation, industrial, and consumer/communications solutions. Allegro is headquartered in Worcester, Massachusetts (USA) with design, applications, and sales support centers located worldwide. Further information about Allegro can be found at www.allegromicro.com.

Contact information: Stephanie Fennelley, Allegro MicroSystems, 115 Northeast Cutoff, Worcester, MA 01606

Print Story
Print | 
Email |  Comment   Share  
Contacts: View detailed contact information.


 

Post a comment about this story

Name:
E-mail:
(your e-mail address will not be posted)
Comment title:
Comment:
To submit comment, enter the security code shown below and press 'Post Comment'.
 



 See related product stories
More .....
 See more product news in:
Electronic Components and Devices
Sensors, Monitors and Transducers
 More New Product News from this company:
Linear 3.3 V Hall-Effect Sensor IC comes in miniature package.
Off-Line PWM Controllers integrate power MOSFET.
Unipolar Hall-Effect Switch features built-in diagnostics.
Voltage Regulators provide single LNB supply and control.
User-Configurable SMPS targets telecom and medical markets.
More ....
| Featured Manufacturing Jobs
 Other News from this company:
Allegro MicroSystems, Inc. Introduces New Offline PWM Switching Regulator IC Family
Allegro MicroSystems, Inc. Introduces New Automotive 2.2 MHz Multiple Output Regulator Family
Allegro MicroSystems, Inc. Announces New LED Lighting Series
Allegro MicroSystems, Inc. Announces Off-Line Quasi-Resonant Switching Regulators
Allegro Announces New Low Noise 2100vrms Hall-Effect Current Sensors
More ....
 Tools for you
Watch Company 
View Company Profile
Company web site
More news from this company
E-mail this story to a friend
Save Story
Search for suppliers of
Motion Sensors
Integrated Circuits (IC)
Hall Effect Sensors
Speed Sensors
Magnetic Sensors
Join the forum discussion at:
Tools of the Trade
Wired In


Home  |  My ThomasNet News®  |  Industry Market Trends®  |  Submit Release  |  Advertise  |  Contact News  |  About Us
Brought to you by Thomasnet.com        Browse ThomasNet Directory

Copyright © 2014 Thomas Publishing Company. All Rights Reserved.
Terms of Use - Privacy Policy



Error close

Please enter a valid email address