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NVE Introduces High-Sensitivity TMR Smart Magnetometer

2022-03-28 | Return

EDEN PRAIRIE, Minn.—March 28, 2022—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 SMxxx 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:

Part Number	Field Range	Accu- racy	Speed	Outputs	Pkg.
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
SM228-10E	15 mT	2%	15 kSps	I²C; Digital Threshold
SM324-10E	2 mT	0.3%	300 Sps	I²C; Digital Threshold

Available Now
SM223-10E Smart Magnetometers, breakout boards, and evaluation kits are available now for immediate delivery. The part end-user price is $1.65 each in 1000-piece quantities.

Click here to download the SM223 Datasheet.

Source: https://www.nve.com