Current Sensors

GMR/TMR Current Sensors can replace shunts but are lossless and inherently isolated.
Displaying 1 to 15 (of 15 products)
AAL024-10E: 1.5 mT Noncontact Current Sensor, 2.2 KOhm, TDFN6

The AAL024-10E high-performance magnetometer has high sensitivity, high linearity, low-hysteresis, and cross-axis sensitivity, making it ideal for noncontact current-sensing. Features: 3.6 mv/V/Oe typical sensitivity for large output signals and low noise Wide linear range: 0.15 – 1.05 mT; 1.5 mT saturation 2.2 kΩ bridge resistance/1.1 kΩ output impedance for easy interface Low offset: 4 mV/V max. Low hysteresis: 2% max. for excellent repeatability Wide bandwidth: 100 kHz 63 V minimum inherent isolation (pad to electrical connections) Ultraminiature 2.5 mm x 2.5 mm TDFN6 package Applications: Current sensing Low-field sensing for magnetic media Earth’s magnetic field detection Low-Hysteresis Magnetometer—
senses fields from permanent magnets, earth, and current sources.  Typ. Saturation Field (Oe)   Linear Range(|Oe|) 
min.-max.  Sensitivity (mV/V/Oe) 
min.-max.  Resistance 
(Ohms)  Package  15 1.5 - 10.5 3.0 - 4.2  2200 ±20%  TDFN6
(RoHS) Note: Parts are sold in increments of 100 for quantities of 100 or more.
This part is RoHS compliant.

Part Number:
AAL024-10E
Quantity in Stock:
854

$9.60

AAV003-10E: Analog Current Sensor, TDFN6 Package

NVE's AAV003-10E is a highly linear, extremely low hysteresis GMR current sensor with an on-chip current strap. A GMR bridge sensor element close to the current strap senses the magnetic field created by the current. The GMR sensor element uses a unique, bipolar output low hysteresis GMR material. The bridge output voltage is bipolar and proportional to the current through the strap. Typical sensitivity is a remarkable 2 mV/mA with a 24 V supply and no amplification.Key specifications are summarized as follows: General purpose current sensor, ±80mA --
Provides bipolar output for AC and DC currents up to 80mA Current
Measurement Range Sensitivity (mV/V/mA) Output Comments Package -80 mA to +80 mA 0.08 Analog
Bridge Low Current
Measurement TDFN6 Note: Parts must be purchased in tube multiples (increments of 100) when purchasing quantities of 100 or more. Larger quantities are subject to NVE's standard lead times.

Part Number:
AAV003-10E
Quantity in Stock:
4000

$5.25

AG903B-07E: 0.75A/5A/50A GMR Current Sensor Evaluation Kit

The evaluation board includes three sensor over current-trace modules with three AAL024-10E TDFN current sensors.

The board measures 1.565" x 2.915" (40 mm by 74 mm), and includes three separable modules. The three modules are optimized to measure currents of 0-0.75A, 0-5A, and 0-50A.

Part Number:
AG903B-07E
Quantity in Stock:
11

$75.00

AG905-07E: ALT025 High Current PCB Demonstration

This demonstration features the ALT025 low hysteresis, high-speed TMR magnetometer and a high current PCB layout, optimized for the detection of +/- 200 amps. The board has sturdy screw terminal connections for current input, and it has header pins for sensor power and output.

Part Number:
AG905-07E
Quantity in Stock:
3

$75.00

AG951-07E: SM324-10E Smart TMR Magnetometer Evaluation Kit

The AG951-07 Evaluation Kit has everything you need to calibrate, test, and evaluate the remarkable SM324-10E Smart TMR Magnetometer. The kit includes:
    • An evaluation board with:
          - an SM324-10E sensor.
          - a microcontroller connected to the sensor via I²C.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A powerful, intuitive graphical user interface.
    • Simple software installation.
    • Flexibility to power from USB or an external power supply.
    • Isolated USB interface for safety and noise minimization.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG951-07E
Quantity in Stock:
2

$245.00

AG952-07E: SM124-10E Smart GMR Magnetometer Evaluation Kit

The AG952-07 Evaluation Kit has everything you need to calibrate, test, and evaluate the easy-to-use SM124-10E Smart Magnetometer. The kit includes:
    • A 1" x 1.6" (25 mm x 41 mm) evaluation board with:
          - an SM124-10E sensor.
          - a microcontroller connected to the sensor via I²C.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A simple, intuitive graphical user interface.
    • Simple software installation.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG952-07E
Quantity in Stock:
12

$95.00

AG953-07E: SM225-10E Smart TMR Magnetometer Evaluation Kit

The AG953-07 Evaluation Kit has everything you need to test and evaluate the easy-to-use SM225-10E Smart Magnetometer. The kit includes:
    • A 1" x 1.6" (25 mm x 41 mm) evaluation board with:
          - an SM225-10E sensor.
          - a microcontroller connected to the sensor via SPI.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A PWM board output for an analog representation of the measured magnetic field.
    • A simple, intuitive graphical user interface.
    • Simple software installation.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG953-07E
Quantity in Stock:
8

$95.00

AG953H-07E: SM225-10E Bussbar Current Sensor Demonstration

The AG953H-07 demonstrates high current measurement with the SM225-10E Smart TMR Magnetometer. A 1/4" x 1/2" busbar is mounted to the PCB, and the sensor can detect up to +/-650 amps. Based on the AG953-07E Evaluation Kit, a powerful, intuitive graphical user interface allows the user to control sensor offset, calibration, filtering, and memory.

Part Number:
AG953H-07E
Quantity in Stock:
9

$129.00

AG962-07E: SM125-10E Smart GMR Magnetometer Evaluation Kit

The AG962-07 Evaluation Kit has everything you need to calibrate, test, and evaluate the easy-to-use SM125-10E Smart Magnetometer. The kit includes:
    • A 1" x 1.6" (25 mm x 41 mm) evaluation board with:
          - an SM125-10E sensor.
          - a microcontroller connected to the sensor via I²C.
          - a current-carrying trace under the sensor for evaluating as a current sensor.
    • A simple, intuitive graphical user interface.
    • Simple software installation.
    • USB cable to connect the Evaluation Board to a computer.
    • A small ceramic magnet for evaluating as a proximity sensor.

Part Number:
AG962-07E
Quantity in Stock:
9

$95.00

ALT025-10E: 0-10 mT TMR Bipolar Analog Sensor, 20 KOhm, x-axis, TDFN6

The ALT025 is a Tunneling Magnetoresistance (TMR) analog bridge magnetic sensor with an extraordinary amount of signal and linear range. The differential bridge output is bipolar, meaning it is positive for a positive field and negative for an opposite field polarity. The ALT025 has cross-axis sensitivity (across the pads). Features: Tunneling Magnetoresistive Technology (TMR) Large signals (20 mV/V/mT typical) Wheatstone bridge magnetometer configuration 20 kiloohm device resistance for low power ±10 mT (±100 Oe) linear range High linearity output (

Part Number:
ALT025-10E
Quantity in Stock:
1907

$12.00

SM124-10E: General-Purpose 1 mT Smart GMR Magnetometer, TDFN6

The SM124-10E Smart Magnetometer combines an omnipolar GMR sensor element with with easy-to-use digital signal processing.

A digital output provides precise, programmable thresholds. An I²C interface provides magnetic field data, as well as a calibration interface. The device is factory calibrated for accuracy. Calibration coefficients are stored in internal nonvolatile memory.

All commands, data, and coefficients are a single byte, and a slick, elegant data structure lets you get up and running with a minimum of firmware.

Key features include:
  • Can detect magnets more than 50 mm away
  • I²C and digital threshold outputs
  • 0-1 mT linear range
  • 8-bit / 1% output resolution
  • −40°C to +125°C operating range
  • 5% FS accuracy for 0 to 85°C
  • 10 kSps sample rate for fast response
  • 6 mA typical supply current
  • In-plane sensitivity more usable than Hall effect sensors
  • Programmable offset and gain compensation
  • Optional magnet temperature compensation   • 2.2 to 3.6 volt supply
  • Ultraminiature 2.5 x 2.5 x 0.8 mm TDFN package

Part Number:
SM124-10E

$4.13

SM125-10E: General-Purpose 4 mT Smart GMR Magnetometer, TDFN6

The SM125-10E Smart Magnetometer combines an omnipolar GMR sensor element with with easy-to-use digital signal processing.

A digital output provides precise, programmable thresholds. An I²C interface provides magnetic field data, as well as a calibration interface. The device is factory calibrated for accuracy. Calibration coefficients are stored in internal nonvolatile memory.

All commands, data, and coefficients are a single byte, and a slick, elegant data structure lets you get up and running with a minimum of firmware.

Key features include:
  • Can detect magnets more than 50 mm away
  • I²C and digital threshold outputs
  • 0-4 mT linear range
  • 8-bit / 1% output resolution
  • −40°C to +125°C operating range
  • 5% FS accuracy for 0 to 85°C
  • 10 kSps sample rate for fast response
  • 6 mA typical supply current
  • In-plane sensitivity more usable than Hall effect sensors
  • Programmable offset and gain compensation
  • Optional magnet temperature compensation   • 2.2 to 3.6 volt supply
  • Ultraminiature 2.5 x 2.5 x 0.8 mm TDFN package

Part Number:
SM125-10E
Quantity in Stock:
336

$4.13

SM225-10E: High-Speed Smart TMR Magnetometer, 15mT, SPI, TDFN6

The SM225-10E Smart Magnetometer combines a Tunneling Magnetoresistance (TMR) sensor element with sophisticated digital signal processing for a unique combination of speed and precision. An SPI interface provides data as well as an external programming interface.

Unlike awkward, old-fashioned Hall-effect sensors, TMR is sensitive in-plane for optimal current sensing and easy mechanical interfaces. Key features include:
  •  0 to 150 Oe / 0 to 15 mT linear range
  •  Can detect magnets more than 50 mm away
  •  SPI interface
  •  2% of full-scale accuracy for 0 to 125°C
  •  Fast 15000 sample-per-second update rate
  •  Factory calibrated
  •  Programmable offset and gain compensation
  •  -40°C to +125°C operating range
  •  Ultraminiature 2.5 x 2.5 mm TDFN package

Part Number:
SM225-10E
Quantity in Stock:
1749

$4.68

SM228-10E: Smart TMR Magnetometer, 15 mT, I2C, TDFN6

The SM228-10E Smart Magnetometer combines a Tunneling Magnetoresistance (TMR) sensor element with sophisticated digital signal processing for a unique combination of speed and precision. An I2C interface provides data as well as an external programming interface.

Unlike awkward, old-fashioned Hall-effect sensors, TMR is sensitive in-plane for optimal current sensing and easy mechanical interfaces. Key features include:
  •  0 to 150 Oe / 0 to 15 mT linear range
  •  Can detect magnets more than 50 mm away
  •  Digital threshold output
  •  I2C interface
  •  2% of full-scale accuracy for 0 to 125°C
  •  Fast 10000 sample-per-second update rate
  •  Factory calibrated
  •  Programmable offset and gain compensation
  •  -40°C to +125°C operating range
  •  Ultraminiature 2.5 x 2.5 mm TDFN package

Part Number:
SM228-10E
Quantity in Stock:
91

$4.68

SM324-10E: Ultraprecise Smart TMR Magnetometer, I2C, DFN6

The SM324-10E Smart Magnetometer combines a Tunneling Magnetoresistance (TMR) sensor element with sophisticated digital signal processing for unmatched accuracy and precision. An I²C interface provides data as well as an external programming interface, and a digital output provides precise, programmable thresholds.

Unlike awkward, old-fashioned Hall-effect sensors, TMR is sensitive in-plane for optimal current sensing and easy mechanical interfaces. Key features include:
  • Can detect magnets more than 50 mm away
  • I²C and digital threshold outputs
  • 24-bit output resolution
  • In-plane sensitivity more usable than Hall effect sensors
  • Programmable offset and gain compensation
  • Calibrated internal temperature sensor
  • Internal temperature compensation
  • 1.68 to 3.6 volt supply
  • Ultraminiature 2.5 x 2.5 x 0.8 mm DFN package

Part Number:
SM324-10E
Quantity in Stock:
2709

$5.50

Displaying 1 to 15 (of 15 products)