LDC2114YFDR Part Information

Details for LDC2114YFDR by Texas Instruments

Semiconductors - ICs>Data & Signal Conversion>Inductance to Digital Converters

Part Description

Inductive sensing technology enables touch button design for human machine interface (HMI) on a wide variety of materials such as metal, glass, plastic, and wood, by measuring small deflections of conductive targets. The sensor for an inductive touch system is a coil that can be implemented on a small PCB located behind the panel and protected from the environment. Inductive sensing solution is insensitive to humidity or non-conductive contaminants such as oil and dirt. It is able to automatically correct for any deformation in the conductive targets. The LDC2112/LDC2114 is a multi-channel low-noise inductance to digital converter with integrated algorithms to implement inductive touch applications. The device employs an innovative LC resonator that offers high rejection of noise and interference. The LDC2112/LDC2114 can reliably detect material deflections of less than 200 nm. The LDC2112/LDC2114 includes an ultra-low power mode intended for power on/off buttons in battery powered applications. The LDC2112/LDC2114 is available in a 16-pin DSBGA or TSSOP package. The 0.4 mm pitch DSBGA package has a very small 1.6 × 1.6 mm nominal body size with a maximum height of 0.4 mm. The 0.65 mm pitch TSSOP package has a 5.0 × 4.4 mm nominal body size with a maximum height of 1.2 mm.

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Part Features

  • Configurable Button Scan Rates: u2013 0.625 SPS to 80 SPS
  • Force Level Measurement of Touch Buttons
  • Independent Channel Operation: u2013 Two Channels for LDC2112 u2013 Four Channels for LDC2114
  • Integrated Algorithms to Enable: u2013 Adjustable Force Threshold per Button u2013 Environmental Shift Compensation u2013 Simultaneous Button Press Detection
  • Interface:
  • Low Power Consumption: u2013 One Button: 6 u00b5A at 0.625 SPS u2013 Two Buttons: 72 u00b5A at 20 SPS
  • Operating Voltage Range: 1.8 V u00b1 5%
  • Robust EMI Performance: u2013 Allows for CISPR 22 and CISPR 24 Compliance
  • Supports Independent Operation without MCU
  • Temperature Range: u201340 u00b0C to +85 u00b0C

Part Specifications

Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Analogue Supply Voltage Max 1.89V
Analogue Supply Voltage Min 1.71V
Inductance (L) Resolution 12bit
LDC Case Style DSBGA
LDC Interface Type I2C
No. of Pins 16Pins
RoHS Compliant

Alternative Part Descriptions

  • 4-Ch inductance to digital converter with baseline tracking for low power touch buttons | Texas Instruments

Frequently Asked Questions

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What category does LDC2114YFDR fall under?

The LDC2114YFDR is listed under Semiconductors - ICs > Data & Signal Conversion > Inductance to Digital Converters.

Can I view similar or alternative parts?

You can view similar parts to LDC2114YFDR when available in the Inductance to Digital Converters range under the specifications section at the bottom of the details page.

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Is the LDC2114YFDR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

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