LDC1000 Datasheet, PDF (1/23 Pages) Texas Instruments – LDC1000 Inductance to Digital Converter

LDC1000
www.ti.com
SNOSCX2 – SEPTEMBER 2013
LDC1000 Inductance to Digital Converter
Check for Samples: LDC1000
FEATURES
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• Magnet-Free Operation
• Sub-Micron Precision
• Adjustable Sensing Range (via 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: 4.75V to 5.25V
• Supply Voltage, IO: 1.8V to 5.25V
• Supply Current (w/o LC Tank): 1.7mA
• Rp Resolution: 16-bit
• L Resolution: 24-bit
• LC Frequency Range: 5kHz to 5MHz
APPLICATIONS
• Drive-by-Wire Systems
• Gear-Tooth Counting
• Flow Meters
• Push-Button Switches
• Notebook Computers
• Game Controllers
• Multi-Function Printers
• Digital Cameras
• Medical Devices
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/angular position,
displacement, motion, compression, vibration, metal
composition, and many 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. An SPI interface simplifies
connection to an MCU.
TYPICAL APPLICATION
Figure 1. Axial Distance Sensing
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated