1 Features

1• AEC-Q100 Qualified for Automotive Applications:

– Temperature grade 0: –40°C to 150°C, TA

• 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 virtue of contact-less operation)

• Insensitivity to environmental interference (such

as dirt, dust, water, oil)

• Supply voltage, analog: 4.75 V to 5.25 V

• Supply voltage, IO: 1.8 V to 5.25 V

• Supply current (without LC tank): 1.7 mA

• RP resolution: 16-bit

• L resolution: 24-bit

• LC frequency range: 5 kHz to 5 MHz

2 Applications

• Touch buttons

• Angular position sensing

• Linear position sensing

• Metal proximity sensing

3 Description

The LDC1001-Q1 device is a 4.75-V to 5.25-V

automotive-qualified inductance-to-digital converter

designed for parallel resistance (Rp) and inductance

(L) measurements. Inductive sensing technology

enables precise measurement of linear or angular

position of metal targets 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-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 offers several modes of operation. A

serial peripheral interface (SPI) simplifies connection

to an MCU.