Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Channels / Resolution | 2 channels, 28-bit LDC |
| Sensor Frequency | 1 kHz to 10 MHz supported range |
| Supply | 2.7 V to 3.6 V |
| Interface | I²C with configurable address and interrupt |
| Clocking | Internal clock or external 40 MHz reference |
| Low Power | 35 µA sleep; 200 nA shutdown stated features |
| Sensing | Inductive target sensing beyond two coil diameters; remote sensor >20 cm supported |
| Exact Package / Packing | WSON (DNT), 12 pins; 4500-piece large tape and reel |
Product Overview
LDC1612DNTR converts the resonant frequency of two LC sensor channels into high-resolution digital measurements for contactless inductive sensing. Unlike a conventional voltage ADC, its measurement variable is the sensor resonance, so coil geometry, target material, distance and reference clock quality directly shape system resolution.
The two channels can be used for independent targets or for environmental/aging compensation. A remote coil can be separated from the converter, which helps place sensing elements in harsh mechanical areas while keeping the IC on a protected PCB.
The DNT order code is the active 4 mm-class WSON reel option. Its exposed-pad/leadless assembly and analog sensor routing require tighter PCB process control than a leaded package.
For related devices, see HKEQGOO’s ADCs/DACs – Special Purpose category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | LDC1612DNTR |
| Channels / Resolution | 2 channels, 28-bit LDC |
| Sensor Frequency | 1 kHz to 10 MHz supported range |
| Supply | 2.7 V to 3.6 V |
| Interface | I²C with configurable address and interrupt |
| Clocking | Internal clock or external 40 MHz reference |
| Low Power | 35 µA sleep; 200 nA shutdown stated features |
| Sensing | Inductive target sensing beyond two coil diameters; remote sensor >20 cm supported |
| Exact Package / Packing | WSON (DNT), 12 pins; 4500-piece large tape and reel |
| Manufacturer Status | Active / Production |
| Part Marking | LDC1612 |
Functional Highlights
28-bit output does not equal 28 bits of mechanical accuracy
Resolution depends on sensor Q, frequency, target coupling, reference-clock quality and conversion time. The large digital code width is useful only when the LC sensor and mechanical system are stable enough to support it.
Multiple channels can cancel drift instead of only adding more sensors
A reference channel can track temperature, component aging or mechanical background so firmware can distinguish target movement from common environmental changes.
Design Considerations
- Design the LC tank from the actual target distance/material and keep sensor routing away from noisy digital clocks.
- Use an external reference clock when measurement stability requires better clock performance than the internal oscillator.
- Treat WSON exposed-pad assembly, grounding and solder process as part of the sensor-noise design.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists LDC1612DNTR as Active / Production; WSON (DNT), 12 pins; 4500-piece large tape and reel; Level-1-260C-UNLIM; −40°C to +125°C; marking LDC1612.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
