Datasheet Texas Instruments LDC1101

Manufacturer	Texas Instruments
Series	LDC1101

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Parametrics

Parameters / Models	LDC1101DRCR	LDC1101DRCT
# Input Channels	1	1
Active Supply Current(Typ), mA	2	2
Analog Supply (V), Min	3.46	3.46
Interface	SPI	SPI
L (Inductance) Resolution, Bits	24	24
Operating Temperature Range, C	-40 to 125	-40 to 125
Oscillation Amplitude(Max), V	1.2	1.2
Oscillation Amplitude(Min), V	0.25	0.25
Package Group	VSON	VSON
Package Size: mm2:W x L, PKG	10VSON: 9 mm2: 3 x 3(VSON)	10VSON: 9 mm2: 3 x 3(VSON)
Rating	Catalog	Catalog
Response Time(Max), 1/fsensor	12	12
Response Time(Min), 1/fsensor	19	19
Rp (Parallel Resonance Impedance) Resolution, Bits	16	16
Sensor Frequency, Hz	500k - 10M	500k - 10M
Sensor Rp Range(Max), Ohms	3.93M	3.93M
Sensor Rp Range(Min), Ohms	798	798
Stand-By Current(Typ), uA	150	150

Eco Plan

Application Notes

• Download
  Performing L Measurements from LDC DRDY Timing
  PDF, 66 Kb, File published: Nov 6, 2015
  TI’s LDC1000 and LDC1101 devices measure the resonant frequency of an LC tank to determine the inductance of a sensor. Some applications require higher measurement resolution than the LDC1000 or even LDC1101 can provide. With proper configuration of the LDC, an external time measurement device can be used for improved inductance measurement resolution.
• Download
  Optimizing L Measurement Resolution for the LDC161x and LDC1101
  PDF, 108 Kb, File published: Feb 12, 2016
• Download
  LDC1xxx LDC Target Design (Rev. A)
  PDF, 907 Kb, Revision: A, File published: May 9, 2017
  Texas Instruments’ Inductive-to-Digital Converter (LDC) technology can accurately measure with a wide variety of target sizes, shapes, and material composition. There are several target design guidelines to maximize the effectiveness of an LDC measurement system. This application note covers the relevant factors of target design that affect inductive sensing, and provides guide
• Download
  Setting LDC1312/4, LDC1612/4, and LDC1101 Sensor Drive Configuration
  PDF, 298 Kb, File published: Apr 5, 2016
• Download
  LDC Device Selection Guide (Rev. B)
  PDF, 360 Kb, Revision: B, File published: Mar 21, 2017
• Download
  EMI Considerations for Inductive Sensing
  PDF, 151 Kb, File published: Feb 22, 2017
  This application note explains various EMI reduction techniques to help improve EMI performance for TI'sInductance-to-Digital Converters (LDC). Each section details a general technique with references to otheruseful online documents. A list of relevant EMI reduction techniques is provided for specific devices withinthe LDC family of products.
• Download
  Measuring Rp of an L-C Sensor for Inductive Sensing
  PDF, 205 Kb, File published: Oct 1, 2015
  When designing an application using TI’s LDC series of inductive sensors, it is necessary to know the L-C sensor’s equivalent parallel resistance RP at the sensor’s resonant frequency. The RP value changes as the target is moved; the minimum RP occurs when the metal target is closest to the sensor. The maximum RP occurs when the target is at the farthest distance. Accordingly, both values should b

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Manufacturer's Classification

• Semiconductors> Sensing Products> Inductive Sensing> Inductance to Digital Converters