LDC1001 - Texas Instruments

LDC1001 Inductance-to-Digital Converter

The LDC1001 device is a 4.75-V to 5.25-V inductance-to-digital converter designed for parallel resistance (Rp) and inductance (L) measurements. Inductive sensing technology enables precise measurement of linear or angular position of metal targets in automotive and industrial applications. Inductive sensing is a contactless, short-range sensing technology th.

Features

•1 Magnet-free operation
• Sub-micron precision
• Adjustable sensing range (through coil design)
• Lower system cost
• Remote sensor placement (decoupling the LDC from harsh environments)
• High durability (by virtue of contact-less operation)
• Insensitivity to environmental interference (such as dirt, dust, water, oil)
• Supply voltage, analog: 4.75 V to 5.25 V
• Supply voltage, I/O: 1.8 V to 5.25 V
• Supply current (without LC tank): 1.7 mA
• RP resolution: 16 bit
• L resolution: 24 bit
• LC frequency range: 5 kHz to 5 MHz 2 Applications
• Touch buttons
• Angular position sensing
• Linear p.