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    Parts    LDC1612QDNTRQ1
LDC1612QDNTRQ1

TILDC1612QDNTRQ1

Texas Instruments
Inductance-to-Digital Converter 28 b 4.08k I2C 12-WSON (4x4)
Active2,511 in stock
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Overview

The LDC1612QDNTRQ1 is an automotive-qualified, 2-channel inductance-to-digital converter (LDC) designed for high-resolution proximity and position sensing. It translates changes in the inductance of a sensor coil into a 28-bit digital value over an I2C interface, enabling sub-micron precision in metal detection and displacement measurements.

Why Choose This Part

This device offers a high 28-bit resolution and supports a wide sensor frequency range from 1kHz to 10MHz, providing significant flexibility in coil design. It is AEC-Q100 qualified for automotive reliability and features excellent immunity to DC magnetic fields, making it superior to Hall-effect sensors in environments with nearby magnets.

Applications

Automotive Gear Shifters
Provides contactless, wear-free position sensing for transmission selectors and rotary knobs in harsh vehicle environments.
Industrial Fluid Level Sensing
Measures fluid levels by detecting the position of a metal float through non-conductive container walls.
Precision Metal Proximity Detection
Detects the presence and distance of metallic targets with immunity to non-metallic interference like dirt, dust, or oil.
Rotary and Linear Encoders
High-resolution measurement of rotational or linear motion for robotic joints and industrial actuators.

Key Specifications

Type Inductance-to-Digital Converter
Mounting Type Surface Mount
Data Interface I2C
Package / Case 12-WFDFN Exposed Pad
Voltage - Supply 2.7V ~ 3.6V
Resolution (Bits) 28 b
Number of Channels 2
Operating Temperature -40degC ~ 125degC
Voltage Supply Source Single Supply
Supplier Device Package 12-WSON (4x4)
Sampling Rate (Per Second) 4.08k

Getting Started

Start development with the LDC1612EVM evaluation module, which connects via USB to TI's sensing solutions GUI for real-time data visualization. Engineers should focus on designing a high-Q LC tank circuit with stable COG/NP0 capacitors to maximize the sensing range and minimize thermal drift.