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High-Sensitivity
I²C Magnetometer |
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NVE’s groundbreaking
line of Smart Magnetometers has been expanded with the SM223—a high-sensitivity
version of the popular SM228 TMR magnetometer. Unique
Tunneling Magnetoresistance (TMR) technology provides lower noise than Hall effect
sensors and in-plane sensitivity.
All SM-Series magnetometers are factory calibrated to provide precise analog field
measurements. The new part has an I²C interface and a programmable digital
threshold output:
SM223 Smart Magnetometer
Key SM223 / SM228 specifications include:
• ±1.5 mT (SM223) or ±15 mT (SM228) range
• 2% of FS accuracy
• 15 kSps sample rate
• 2.2 to 3.6 volt supplies
• -40 to 125 °C temperature range
• Ultraminiature 2.5 x 2.5 TDFN6 package
Applications include:
• Proximity sensing
• Noncontact current sensing as low as 100 mA
• Automotive applications
• Cylinder position sensing
• Security and intrusion detection
Available Now
The SM223 and the rest of our Smart Magnetometers are in stock
for immediate delivery:
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Part
Number
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Field
Range
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Accu-
racy |
Speed
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Outputs
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Pkg.
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| SM124-10E |
1 mT |
5% |
10
kSps |
I²C;
Digital Threshold |
2.5
x 2.5 mm DFN6 |
| SM125-10E |
4
mT |
5% |
10 kSps |
NEW
SM223-10E |
1.5
mT |
2% |
15 kSps |
| SM225-10E |
15
mT |
2% |
15 kSps |
SPI |
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SM228-10E |
15
mT |
2% |
15 kSps |
I²C;
Digital Threshold |
| SM324-10E |
2
mT |
0.3% |
300
Sps |
Smart Magnetometer breakout
boards and evaluation
kits are also available.
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Current Sensor
Evaluation Board |
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A new isolated current
sensor evaluation board allows you to test the remarkable ACT001-10E current sensor
and a common application circuit.
The ACT001-10E is a fully-isolated, inline current sensor with an on-chip current
strap. A Wheatstone bridge manufactured with NVE’s state-of-the-art tunneling
magnetoresistance (TMR) sensor elements detects the magnetic field from the input
current across NVE’s unique polymer isolation barrier.
Applications include:
• AC and DC motor control
• Power measurement
• Overcurrent protection
• Battery management systems
Key ACT001-10E specifications include:
• ±500 mA linear range
• 0.04 mV/V-mA sensitivity (typ.)
• 0 to 14 V supply (no minimum)
• Fully isolated
• Ultraminiature 2.5 x 2.5 DFN6 package
Available Now
ACT001-10E sensors and evaluation boards are in
stock for immediate delivery.
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