Camshaft Position Sensors
Precise timing signals for engine control with high-speed operation and superior signal integrity in harsh under-hood environments.
Camshaft Position Sensor Selection Guide
| ECAD | |||||||
|---|---|---|---|---|---|---|---|
| Three-Wire Differential Camshaft Sensing IC with Programmable Thresholds | Speed | 3-Wire (voltage) | -40°C to 160°C | Hall | 3-Pin SIP | ||
| Self-Calibrating Automatic-TPOS Camshaft Speed Sensor IC | Speed | 3-Wire (voltage) | -40°C to 160°C | Hall | 3-Pin SIP | ||
| Highly Programmable, Back-Biased, Hall-Effect Switch with TPOS Functionality | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP | ||
| Self-Calibrating TPOS GMR Camshaft Speed Sensor IC with Integrated EMC Components | Speed | 3-Wire (voltage) | -40°C to 160°C | GMR | 3-Pin SIP | ||
| Single Element, Tooth Detecting Speed Sensor IC | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP | ||
| Dynamic Self-Calibrating Peak-Detecting Differential Hall Effect Gear Tooth Sensor IC | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP | ||
| Dynamic, Self-Calibrating, Peak-Detecting, Differential Hall Effect Gear Tooth Sensor IC | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP | ||
| Self-Calibrating TPOS Speed Sensor IC Optimized for Automotive Cam Sensing Applications | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP |
Part Number | Description | Direction Info | Physical Interface | Temperature | Technology | Package |
|---|---|---|---|---|---|---|
| A16100 | Three-Wire Differential Camshaft Sensing IC with Programmable Thresholds | Speed | 3-Wire (voltage) | -40°C to 160°C | Hall | 3-Pin SIP |
| A16311 | Self-Calibrating Automatic-TPOS Camshaft Speed Sensor IC | Speed | 3-Wire (voltage) | -40°C to 160°C | Hall | 3-Pin SIP |
| ATS128 | Highly Programmable, Back-Biased, Hall-Effect Switch with TPOS Functionality | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP |
| ATS16351 | Self-Calibrating TPOS GMR Camshaft Speed Sensor IC with Integrated EMC Components | Speed | 3-Wire (voltage) | -40°C to 160°C | GMR | 3-Pin SIP |
| ATS601 | Single Element, Tooth Detecting Speed Sensor IC | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP |
| ATS616 | Dynamic Self-Calibrating Peak-Detecting Differential Hall Effect Gear Tooth Sensor IC | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP |
| ATS617 | Dynamic, Self-Calibrating, Peak-Detecting, Differential Hall Effect Gear Tooth Sensor IC | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP |
| ATS675 | Self-Calibrating TPOS Speed Sensor IC Optimized for Automotive Cam Sensing Applications | Speed | 3-Wire (voltage) | -40°C to 150°C | Hall | 4-Pin SIP |
Selection & Solution Guides
Allegro Product Selection Guide (PDF)
Documentation & Resources
Application Note
Benefits of Dynamic Threshold Feature in ATS16351, GMR Back-Biased Speed Sensor IC
AN296257 - The Allegro ATS16351PSM [1] is a True-Power-On-State (TPOS) sensor providing the speed and position of a rotational ferromagnetic target.
Application Note
Differential Hall-Effect Sensors: Safer and More Reliable for Two-Wheelers of the Future
AN296173 - The use of electronic controls for engine, transmission, and wheel speed in two- and three-wheeled vehicles is growing, particularly in developing nations. This trend is largely driven by mandates to improve air quality, fuel efficiency, and vehicle safety worldwide.
Application Note
Method for Mechanical Mounting Tolerance Compensation on Allegro Speed Sensors
AN296175 - Accuracy requirements for absolute mechanical edge detection on cam sensors and more generally on engine management speed sensors have noticeably increased with the need for power optimization and emissions control in car engines being sold today.
Brochure
Brochure: Revolutionary GMR Cam/Crankshaft Sensors
The new Allegro ATS16951 crankshaft and ATS16351 camshaft sensors leverage giant-magnetoresistance (GMR) technology to create an ideal pairing for hybrid vehicle engines, two-wheelers, off-road vehicles, and other application designs that require extended air-gap performance.
Application Note
Methods and Validation of Stray Magnetic Field Mitigation in Magnetic Speed Sensor ICs
AN296250 - This document provides an overview of the phenomena of stray magnetic fields, its various sources, solutions developed to minimize its effects, and product proposals tolerant to stray field perturbations.
Application Note
Fundamental Properties of Speed Sensors
The aim of this application note is to provide a solid foundation for understanding and comparing the fundamental properties of speed sensors that are valid not only for Allegro products but for speed sensors in general.