Digital TMR Latch

CT8xx: Digital TMR Latch/Analog TMR Sensor

The CT8xx series of integrated TMR latches and analog sensor are designed for consumer and industrial applications. This family of products are available in unipolar, bipolar and omnipolar configurations and can either support open drain or push-pull digital outputs. It is based on Crocus’ patented Magnetic Logic Unit™ (MLU™) technology and integrated with CMOS functionality to provide a complete solution.
With very high sensitivity, the CT8xx products enable larger air gaps or smaller size/lower cost magnets to be used in systems while also drawing supply current as low as 200 nA. Available in an industry stand 3-lead SOT23 and small form factor 4-lead LGA packages to support both consumer and industrial applications.


  • High Sensitivity: BOP/BRP = ±0.9 mT/±0.5 mT
  • Low Current Consumption as Low as 200 nA
  • Digital CMOS Outputs:
    • Push-pull
    • Open Drain
  • Supply Voltage: 2.7 V to 3.6 V
  • Resistant to Mechanical Stress
  • Low Profile and Small Form Factor Packages that are ROHS and Green Compliant:
    • 3-lead STO23 << Change to 3-lead SOT23
    • 4-lead LGA, 1.40 x 40 x 0.44 mm


  • Window and Door Sensors
  • Reed Switch Replacement
  • Motor Controllers
  • Tamper-proofing for Utility Meters
  • Proximity Detection
  • Wearable Medical Devices
  • White Goods
  • Fluid Level Detection
  • IoT Devices
  • Smartphones, Tablets and Laptops

Crocus Technology: Intelligence in Sensing™