
XtremeSense™ TMR technology
Allegro sensors with XtremeSense™ TMR technology provide the highest magnetic sensitivity, the lowest power consumption, stability over temperature variations and the smallest size by comparison to other magnetic technologies such as Hall, AMR, and GMR. Accelerating various applications from renewable energy systems, xEV, and connected consumer devices, XtremeSense™ TMR technology enables current and position sensors to achieve industry-leading performance figures and cost levels.
Customer Value Proposition
Efficient Power Conversion
Accurately measures the full dynamic range and provides a cleaner signal.
Adoption of Wide Bandgap Transistors
Wide bandgap transistors such as GAN and SiC require high bandwidth current sensors which XtremeSense TMR achieves without sacrificing accuracy and resolution.
Reduce The Energy Footprint
Delivers the lowest power consumption in any magnetic sensing product category.
Related Content

Webinar: The Next Generation of Magnetic Sensing: XtremeSense™️ TMR Technology
Understand the advantages of TMR technology to include low power consumption, high signal-to-noise ratio, high magnetic sensitivity, stable performance over temperature and space saving capabilities.

Why TMR Technology?
TMR technology represents a paradigm shift in magnetic sensing. Unlike traditional Hall-effect sensors, which rely on the deflection of charge carriers under the influence of an external magnetic field, TMR sensors exploit the phenomenon of tunneling magnetoresistance.

What is TMR?
In the ever-evolving landscape of technological advancements, one concept stands out for its potential to revolutionize various industries: Tunnel Magnetoresistance (TMR) technology.

Demystifying GaN Drivers in Clean Energy Applications
The next generation of electric switches based on wide bandgap semiconductors are gaining popularity in the market.

The Future of Sensing: XtremeSense™ TMR Technology
Revolutionary advances in magnetic sensor capabilities

XtremeSense TMR Technology
TMR sensors and their applications

How does XtremeSense™ TMR Technology Enable Efficient Applications
As high-end applications demand increasingly sophisticated solutions, TMR technology is positioned to become a standard for future innovations, complementing the strengths of existing Hall sensors.

Optimize Your Sensor System Design for Peak Performance
XtremeSense TMR Technology is a cutting-edge solution offering distinct advantages over conventional magnetic sensors. Ideal for high-precision and high-current applications like clean energy, xEV, industrial and consumer.

5 Challenges to Solar Inverters
As the demand for solar energy grows, so does the demand for solar inverters, which play a crucial role in converting the direct current (DC) generated by solar panels into alternating current (AC) that can be used in homes and businesses.

A Cutting-Edge Sensing Solution for Driving Automation and ADAS
The unique feature set of solutions, such as the TMR sensors from Allegro, provide engineers with solutions to meet the safety and performance needs of today while paving the way for the systems of tomorrow.
XtremeSense™️ TMR Technology Products
Evaluation Boards
Image | Manufacturer Part Number | Description | Sensor Type | Sensing Range | Interface | Available Quantity | View Details | |
---|---|---|---|---|---|---|---|---|
![]() | ![]() | EVB102 | EVAL BOARD FOR CT100 | Magnetic, Linear Position | ±50mT | Analog | 8 - Immediate | View Details |
![]() | ![]() | EVB310 | EVAL BOARD FOR CT310 | Magnetic, Rotary Position | - | Analog | 10 - Immediate | View Details |
![]() | ![]() | EVB111-5.0A | EVAL BOARD FOR CT110 | Current Sensor | ±5A | Analog | 15 - Immediate | View Details |
![]() | ![]() | CTD428-50AC | EVAL BOARD FOR CT428 | Current Sensor | ±50A | Analog | 7 - Immediate | View Details |
![]() | ![]() | CTD418-50AC | EVAL BOARD FOR CT418 | Current Sensor | ±50A | Analog | 16 - Immediate | View Details |
![]() | ![]() | CTD417-50AC | EVAL BOARD FOR CT417 | Current Sensor | ±50A | Analog | 20 - Immediate | View Details |
![]() | ![]() | CTD427-50AC | EVAL BOARD FOR CT427 | Current Sensor | ±50A | Analog | 8 - Immediate | View Details |
![]() | ![]() | EVB222-15 | EVAL BOARD FOR CT220 | Current Sensor | ±15mT | Analog | 19 - Immediate | View Details |
![]() | ![]() | EVB222-1.5 | EVAL BOARD FOR CT220 | Current Sensor | ±1.5mT | Analog | 17 - Immediate | View Details |
![]() | ![]() | CTD427-20AC | EVAL BOARD FOR CT427 | Current Sensor | ±20A | Analog | 6 - Immediate | View Details |
![]() | ![]() | CTD456-BB-06B5 | EVAL BOARD FOR CT456 | Current Sensor | ±6mT | Analog | 0 - Immediate | View Details |
![]() | ![]() | CTD8103 | EVAL BOARD CT8132 CT8150 | Magnetic, TMR (Tunneling Magnetoresistive) | - | Analog | 15 - Immediate | View Details |
![]() | ![]() | CTD433-20AC | EVAL BOARD FOR CT433 | Current Sensor | ±20A | Analog | 10 - Immediate | View Details |
![]() | ![]() | CTD433-50AC | EVAL BOARD FOR CT433 | Current Sensor | ±50A | Analog | 10 - Immediate | View Details |
![]() | ![]() | CTD432-50AC | EVAL BOARD FOR CT432 | Current Sensor | ±50A | Analog | 7 - Immediate | View Details |
![]() | ![]() | MIKROE-5319 | CURRENT 9 CLICK | mikroBUS™ Click™ | Sensor | Current | 4 - Immediate | View Details |
TMR Focus Products
Image | Manufacturer Part Number | Description | For Measuring | Sensor Type | Current - Sensing | Available Quantity | View Details | |
---|---|---|---|---|---|---|---|---|
![]() | ![]() | CT220BMC-HS5 | XTREMESENSE HIGH LINEARITY, HIGH | AC/DC | Magnetoresistive | - | 5784 - Immediate | View Details |
![]() | ![]() | CT220RMC-HS5 | XTREMESENSE HIGH LINEARITY, HIGH | AC/DC | Magnetoresistive | - | 5828 - Immediate | View Details |
![]() | ![]() | CT417-HSN850MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 50A | 1708 - Immediate | View Details |
![]() | ![]() | CT110PDV-HD6 | XTREMESENSE HIGH LINEARITY, HIGH | AC/DC | Magnetoresistive | 10A | 2102 - Immediate | View Details |
![]() | ![]() | CT110RDV-ID6 | XTREMESENSE HIGH LINEARITY, HIGH | AC/DC | Magnetoresistive | 15A | 0 - Immediate | View Details |
![]() | ![]() | CT110PDV-ID6 | XTREMESENSE HIGH LINEARITY, HIGH | AC/DC | Magnetoresistive | 10A | 1922 - Immediate | View Details |
![]() | ![]() | CT220BMV-IS5 | XTREMESENSE HIGH LINEARITY, HIGH | AC/DC | Magnetoresistive | - | 2590 - Immediate | View Details |
![]() | ![]() | CT220BMC-IS5 | XTREMESENSE HIGH LINEARITY, HIGH | AC/DC | Magnetoresistive | - | 2674 - Immediate | View Details |
![]() | ![]() | CT416-HSN850MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 50A | 1692 - Immediate | View Details |
![]() | ![]() | CT415-HSN850DR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 50A | 1949 - Immediate | View Details |
![]() | ![]() | CT418-HSN830DR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 30A | 923 - Immediate | View Details |
![]() | ![]() | CT415-HSN820MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 20A | 1749 - Immediate | View Details |
![]() | ![]() | CT418-HSN830MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 30A | 0 - Immediate | View Details |
![]() | ![]() | CT426-HSN850MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 50A | 1727 - Immediate | View Details |
![]() | ![]() | CT428-HSN830MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 30A | 1595 - Immediate | View Details |
![]() | ![]() | CT453-H06MRSN08 | XTREMESENSE TMR 1MHZ BANDWIDTH C | AC/DC | Magnetoresistive | - | 1990 - Immediate | View Details |
![]() | ![]() | CT425-HSN820MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 20A | 4265 - Immediate | View Details |
![]() | ![]() | CT427-HSN830MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 30A | 4027 - Immediate | View Details |
![]() | ![]() | CT428-HSN820MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 20A | 1650 - Immediate | View Details |
![]() | ![]() | CT418-HSN820MR | XTREMESENSE TMR ULTRA-LOW NOISE, | AC/DC | Magnetoresistive | 20A | 1977 - Immediate | View Details |