The US1881 is a Hall-effect latch designed in mixed signal CMOS technology. It integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an open-drain output driver, all in a single package.

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Top features

  • Wide operating voltage range from 3.5 V to 24 V

  • High magnetic sensitivity – Multi-purpose

  • CMOS technology

  • Chopper-stabilized amplifier stage

  • Low current consumption

  • Open drain output

  • Thin SOT23 3L and flat TO-92 3L both RoHS compliant packages

  • SE package North Pole active

  • UA package South Pole active
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Hall-effect sensor latch - High sensitivity - US1881

Product description

The US1881 is a Hall-effect latch designed in mixed signal CMOS technology that integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an open-drain output driver, all in a single package.

Thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable for use in automotive, industrial and consumer applications.

The US1881 has been proved its use into the industry by its widely usage in different markets.

The device is delivered in a TSOT for surface mount process and in a Plastic Single In Line (TO-92 flat) for through-hole mount. Both 3-lead packages are RoHS compliant.

Features and benefits

  • Wide operating voltage range from 3.5 V to 24 V

  • High magnetic sensitivity – Multi-purpose

  • CMOS technology

  • Chopper-stabilized amplifier stage

  • Low current consumption

  • Open drain output

  • Thin SOT23 3L and flat TO-92 3L both RoHS compliant packages

  • SE package North Pole active

  • UA package South Pole active

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During this video, Thomas Strauven, Applications Engineer for Latch & Switch, guides you through the Melexis selection guide for the Latch & Switch portfolio. This selection guide is a parametric document that allows you to find and compare the specifications and features of our extensive Latch & Switch portfolio.