LDC1001 5V, 16-bit Rp, 24-bit L resolution, inductance to digital converter | TI.com

LDC1001
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5V, 16-bit Rp, 24-bit L resolution, inductance to digital converter

5V, 16-bit Rp, 24-bit L resolution, inductance to digital converter - LDC1001
Datasheet
 

Description

The LDC1001 device is a 4.75-V to 5.25-V 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 system consists of an inductive sensor, typically a PCB coil, and a conductive target.

The LDC1001 is available in a 16-pin WSON package and offers several modes of operation. A serial peripheral interface (SPI) simplifies connection to an MCU.

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 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, I/O: 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

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Parametrics

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Part number Order Features Operating temperature range (C) Vs (Min) (V) Package Group Vs (Max) (V) Package size: mm2:W x L (PKG) Rating
LDC0851 Order now Switch output     -40 to 125     1.71     WSON | 8     3.46     8WSON: 4 mm2: 2 x 2 (WSON | 8)     Catalog    
LDC1101 Order now Raw code digital output     -40 to 125     1.71     VSON | 10     3.46     10VSON: 9 mm2: 3 x 3 (VSON | 10)     Catalog    
LDC1612 Order now Raw code digital output     -40 to 125     2.7     WSON | 12     3.6     12WSON: 16 mm2: 4 x 4 (WSON | 12)     Catalog    
LDC2112 Order now Baseline compensated output     -40 to 85     1.71     DSBGA | 16
TSSOP | 16    
1.89     16DSBGA: 5 mm2: 2.2 x 2.2 (DSBGA | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
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