LDC1000_16 Datasheet, PDF (1/36 Pages) Texas Instruments – Inductance-to-Digital Converter

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LDC1000
SNOSCX2C – SEPTEMBER 2013 – REVISED SEPTEMBER 2015
LDC1000 Inductance-to-Digital Converter
1 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
• R_P Resolution: 16-Bit
• L Resolution: 24-Bit
• LC Frequency Range: 5 kHz to 5 MHz
2 Applications
• Position Sensing
• Motion Sensing
• Gear-Tooth Counting
• Flow Meters
• Push-Button Switches
• Multi-Function Printers
• Digital Cameras
• Medical Devices
3 Description
Inductive Sensing is a contact-less, short-range
sensing technology that enables low-cost, high-
resolution sensing of conductive targets in the
presence of dust, dirt, oil, and moisture, making it
extremely reliable in hostile environments. Using a
coil which can be created on a PCB as a sensing
element, the LDC1000 enables ultra-low cost system
solutions.
Inductive sensing technology enables precise
measurement of linear and angular position,
displacement, motion, compression, vibration, metal
composition, and several other applications in
markets including automotive, consumer, computer,
industrial, medical, and communications. Inductive
sensing offers better performance and reliability at
lower cost than other competitive solutions.
The LDC1000 is the world’s first inductance-to-digital
converter, offering the benefits of inductive sensing in
a low-power, small-footprint solution. The product is
available in a SON-16 package and offers several
modes of operation. A serial peripheral interface (SPI)
simplifies connection to an MCU.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LDC1000
WSON (16)
5.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Axial Distance Sensing Application
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.