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HomeProductsIntegrated Circuits (ICs)Data Acquisition - ADCs/DACs - Special PurposeLDC1612DNTT
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LDC1612DNTT - Texas Instruments

Manufacturer Part Number
LDC1612DNTT
Manufacturer
Texas Instruments
Allelco Part Number
32D-LDC1612DNTT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
13,991 pcs available, New & Original
Parts Description
IC IND TO DGTL 28BIT 1K 12WSON
Package
12-WSON (4x4)
Data sheet
LDC1612DNTT.pdf

PCN Design/Specification

Cylindrical Battery Holders.pdf

HTML Datasheet

LDC1612, LDC1614.pdf

PCN Assembly/Origin

2.73KHz.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 13991
  • Unit Price: $1.618
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1.618 $1.62
10+ $1.388 $13.88
30+ $1.244 $37.32
250+ $1.096 $274.00
500+ $1.029 $514.50
1000+ $1.001 $1,001.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

LDC1612DNTT Tech Specifications
Texas Instruments - LDC1612DNTT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LDC1612DNTT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage Supply Source Single Supply
Voltage - Supply 2.7V ~ 3.6V
Type Inductance-to-Digital Converter
Supplier Device Package 12-WSON (4x4)
Series -
Sampling Rate (Per Second) 1k
Resolution (Bits) 28 b
Product Attribute Attribute Value
Package / Case 12-WFDFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 125°C
Number of Channels 2
Mounting Type Surface Mount
Data Interface I²C
Base Product Number LDC1612

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

LDC1612DNTT Image
LDC1612DNTT (1)

Manufacturer Part Number

LDC1612DNTT

Manufacturer

Texas Instruments

Introduction

The LDC1612DNTT is an inductance-to-digital converter designed by Texas Instruments for accurate inductance measurement.

Product Features and Performance

2-channel inductance-to-digital converter

High resolution of 28 bits

Sampling rate up to 1k samples per second

I2C data interface for easy integration

Ultra-low power operation

Product Advantages

High resolution for precise sensing applications

Supports single supply voltage for simplified design

Robust performance in temperature range from -40°C to 125°C

LDC1612DNTT Image
LDC1612DNTT (2)

Key Technical Parameters

Number of Channels: 2

Resolution: 28 bits

Sampling Rate: 1k samples/second

Voltage Supply: 2.7V to 3.6V

Operating Temperature Range: -40°C to 125°C

Quality and Safety Features

Built for reliability and performance in extreme temperatures

Compliant with industry-standard quality and safety regulations

Compatibility

I2C-compatible interface for use with various microcontrollers

Works with a single supply voltage for broader compatibility

Application Areas

Industrial sensing applications

Automotive systems

Consumer electronics

Product Lifecycle

Obsolete status indicates discontinuation

Potential availability of replacements or upgrades from manufacturer

Several Key Reasons to Choose This Product

Highly accurate inductance measurements

Low power consumption extends battery life in portable devices

Resilient operation across a wide temperature spectrum

Easy to mount with surface mount package design

Two-channel support enables dual-sensing applications

Frequently Asked Questions(FAQ)

How does the LDC1612DNTT compare to other inductance-to-digital converters in terms of resolution and sampling rate when monitoring coil-based sensors in industrial automation systems?
The LDC1612DNTT offers 28-bit resolution across two independent channels, enabling sub-microhenry precision in inductance measurements, which is critical for detecting minute changes in proximity or position in automated machinery. With a maximum sampling rate of 1k samples per second per channel, it supports real-time monitoring without introducing significant latency, making it suitable for feedback loops in motion control applications where responsiveness and accuracy are balanced.
What are the key design considerations when integrating the LDC1612DNTT into a battery-powered IoT edge device with limited power budget?
Given its single-supply operation from 2.7V to 3.6V, the LDC1612DNTT can be directly driven by a lithium cell without additional voltage regulation in many cases. Its low quiescent current—typically under 1 mA during active conversion—allows efficient use in intermittent sensing cycles. Engineers should leverage the I2C interface’s ability to put the device into shutdown mode between conversions to minimize average power consumption below 10 µW when duty cycling is applied effectively.
Can the LDC1612DNTT operate reliably in harsh environments such as those found in automotive or aerospace applications, and what environmental ratings apply to this component?
Yes, the LDC1612DNTT is qualified for operation over an extended temperature range from -40°C to +125°C, meeting stringent requirements for automotive and industrial environments. It has an Moisture Sensitivity Level (MSL) of 1, indicating unlimited floor life before soldering, which simplifies handling during high-volume production. Additionally, the package includes an exposed thermal pad that enhances heat dissipation, improving long-term reliability under thermal stress.
How does the LDC1612DNTT handle electromagnetic interference (EMI) in close proximity to switching regulators or motor drives commonly used in factory settings?
The LDC1612DNTT uses spread-spectrum frequency modulation internally to reduce peak emissions and improve robustness against external RF disturbances. However, proper PCB layout remains essential—ground plane isolation, short trace lengths between sensor coils and the IC, and filtering on supply lines are recommended. In environments with strong EMI, additional shielding of sensor coils may be necessary to maintain measurement integrity due to the high-resolution nature of the converter.
What trade-offs exist between resolution, sampling rate, and noise performance when using the LDC1612DNTT for precision displacement sensing?
Higher effective resolution requires longer integration times, which naturally reduces the achievable sampling rate. For the LDC1612DNTT, selecting a higher averaging filter setting improves signal-to-noise ratio at the cost of reduced update rate. For example, using 16x oversampling yields approximately 28-bit ENOB (effective number of bits), but limits throughput to around 250 samples/second. Designers must balance these parameters based on application needs—high-resolution static measurements versus dynamic tracking.
Is the LDC1612DNTT compatible with standard microcontrollers lacking hardware I2C support, and how would one implement communication if only GPIOs are available?
While not ideal for performance-critical applications, software bit-banging an I2C protocol using general-purpose input/output pins on a microcontroller like an ARM Cortex-M0 is feasible with careful timing management. However, this approach increases code complexity and CPU load. For optimal performance and reliability, especially at higher data rates, dedicated I2C peripherals are preferred. The LDC1612DNTT’s I2C interface operates at up to 400 kbps, so clock stretching and acknowledgment handling must be implemented correctly in firmware.
How should the excitation frequency be selected when interfacing the LDC1612DNTT with custom inductive sensors to optimize sensitivity and avoid interference?
The LDC1612DNTT allows programmable excitation frequencies from 39 Hz to 512 kHz. Lower frequencies increase sensitivity to small inductance changes but reduce bandwidth and increase susceptibility to DC drift. Higher frequencies improve speed and immunity to parasitic capacitance but require tighter coil construction and may saturate ferromagnetic cores faster. Selection depends on target inductance range and environment; typical designs start with 100–300 kHz for metal proximity sensors and adjust based on empirical testing.
What impact does coil quality factor (Q) have on measurement accuracy with the LDC1612DNTT, and how can poor Q affect system performance?
A high-quality coil (Q > 50) ensures stable resonant behavior and minimizes noise-induced errors, enabling full utilization of the LDC1612DNTT’s 28-bit resolution. Poorly wound or damaged coils with low Q introduce phase distortion and increased measurement uncertainty, reducing effective resolution. This can result in non-linear output even if the LDC1612DNTT itself performs nominally. Therefore, coil design and placement are as critical as IC selection in achieving reliable results.
Can multiple LDC1612DNTT devices share the same I2C bus without address conflicts, and how is device addressing configured?
Yes, multiple LDC1612DNTT devices can coexist on the same I2C bus as long as each has a unique hardware address. The base I2C address is fixed at 0x28, but the upper two bits can be modified via the ADDR pin configuration. By connecting the ADDR pin to VDD, GND, or leaving it floating (pull-up), engineers can set four distinct addresses (e.g., 0x28, 0x29, 0x2A, 0x2B), allowing up to four units on one bus in most system configurations.
What precautions should be taken during PCB layout to preserve the noise immunity of the LDC1612DNTT when placed near digital circuitry?
To maintain measurement fidelity, the LDC1612DNTT should be located away from noisy digital traces such as clock lines or high-speed data buses. The 12-WSON package has an exposed thermal pad that must connect to a solid ground plane beneath the IC to act as a shield. Decoupling capacitors (0.1 µF ceramic) should be placed as close as possible to the VDD pin, and analog return paths must not overlap with digital returns to prevent ground bounce from corrupting sensitive internal references.
How does temperature variation affect inductance readings when using the LDC1612DNTT, and what compensation strategies are recommended?
Inductance values inherently vary with temperature due to core material properties and conductor resistivity. The LDC1612DNTT does not include built-in temperature compensation, so systems requiring absolute accuracy over wide ambient ranges need supplemental temperature sensing. Pairing the LDC1612DNTT with a temperature sensor like the TMP117 and applying linear or lookup-table-based correction in firmware allows users to compensate for drift in applications such as fuel level sensing or precision displacement tracking.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LDC1612DNTT

Product Attribute LDC1612QDNTTQ1 LDC1612QDNTRQ1 LDC1612DNTR LDC1614QRGHTQ1
Part Number LDC1612QDNTTQ1 LDC1612QDNTRQ1 LDC1612DNTR LDC1614QRGHTQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage Supply Source - - - -
Number of Channels - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Sampling Rate (Per Second) - - - 65M
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Data Interface - LVDS - Parallel I²C LVDS - Parallel, Parallel
Resolution (Bits) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - Supply - - - -
Type - - - -

LDC1612DNTT Datasheet PDF

Download LDC1612DNTT pdf datasheets and Texas Instruments documentation for LDC1612DNTT - Texas Instruments.

PCN Design/Specification
Cylindrical Battery Holders.pdf
HTML Datasheet
LDC1612, LDC1614.pdf
PCN Assembly/Origin
2.73KHz.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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LDC1612DNTT Image

LDC1612DNTT

Texas Instruments
32D-LDC1612DNTT

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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