LDC1101

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design LDC1101 SNOSD01D – MAY 2015 – REVISED OCTOBER 2016 LDC1101 1.8-V High-Resolution, High-Speed Inductance-to-Digital Converter 1 Features 1 Wide Operating Voltage Range: 1.8 V to 3.3 V Sensor Frequency Range: 500 kHz to 10 MHz RP Resolution: 16-Bit L Resolution: 16- or 24-Bit 180-kSPS Conversion Rate Threshold Detection Functionality 1% Part-to-Part Variation in RP Measurement Supply Current: – 1.4-µA Shutdown mode – 135-µA Sleep mode – 1.9-mA Active Mode (no sensor connected) Sub-Micron Distance Resolution Achievable Remote Sensor Placement Isolating the LDC from Harsh Environments Robust Against Environmental Interferences such as Oil, Water, Dirt, or Dust Minimal External Components Magnet-Free Operation Operating Temperature: –40°C to +125°C 2 Applications High-Speed Gear Counting High-Speed Event Counting Motor Speed Sensing Knobs and Dials for Appliances, Automotive, and Consumer Applications HMI for Appliances, Automotive, and Consumer Applications Buttons and Keypads Motor Control Metal Detection 3 Description The LDC1101 is a 1.8-V to 3.3-V, high-resolution inductance-to-digital converter for short-range, highspeed, contactless sensing of position, rotation, or motion, enabling reliable, accurate measurements even in the presence of dust or dirt, making it ideal for open or harsh environments. The LDC1101 features dual...