Texas Instruments LDC1001/Q1 Inductance to Digital Converters
Texas Instruments LDC1001/LDC1001-Q1 Inductance to Digital Converters are automotive-qualified, 4.75V to 5.25V devices designed for parallel resistance (Rp) and inductance (L) measurements. The LDC1001/LDC1001-Q1 features inductive sensing technology that enables precise measurement of metal targets' linear or angular position in automotive and industrial applications. Inductive sensing is a contactless, short-range sensing technology that can enable high-resolution sensing of conductive targets in the presence of dust, dirt, oil, and moisture, which can be used by applications in harsh environments.
The LDC1001/LDC1001-Q1 system consists of an inductive sensor, typically a PCB coil, and a conductive target. The LDC1001-Q1 is available in a 16-pin TSSOP package, and the LDC1001 is available in a 16-pin WSON package. The LDC1001/LDC1001-Q1 offers several modes of operation. A serial peripheral interface (SPI) simplifies connection to an MCU. The Texas Instruments LDC1001-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- Magnet-free operation
- Sub-micron precision
- Adjustable sensing range (through coil design)
- Lower system cost
- Remote sensor placement (decoupling the LDC from harsh environments)
- High durability (by contact-less operation)
- Insensitivity to environmental interference (such as dirt, dust, water, oil)
- 4.75V to 5.25V supply voltage, analog
- 1.8V to 5.25V supply voltage, IO
- 1.7mA supply current (without LC tank)
- 16-bit RP resolution
- 24-bit L resolution
- 5kHz to 5MHz LC frequency range
Applications
- Touch buttons
- Angular position sensing
- Linear position sensing
- Metal proximity sensing
Datasheets
Axial Distance Sensing Application
Published: 2020-01-24
| Updated: 2024-05-13