LDC1101 Series

1-Ch, 1.8V, 24-bit L, 16-bit Rp, inductance to digital converter for high speed applications

Catalog

1-Ch, 1.8V, 24-bit L, 16-bit Rp, inductance to digital converter for high speed applications

Part	Operating Temperature [Max]	Operating Temperature [Min]	Sampling Rate (Per Second)	Package / Case	Data Interface	Type	Voltage Supply Source	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Channels [custom]	Mounting Type	Supplier Device Package	Resolution (Bits)	Number of Channels	Sampling Rate (Per Second)
Texas Instruments LDC1101DRCT	125 °C	-40 °C	150k 180k	10-VFDFN Exposed Pad	SPI	Inductance-to-Digital Converter	Single Supply	1.71 V	3.46 V	2	Surface Mount	10-VSON (3x3)	16 b 24 b
Texas Instruments LDC1101DRCR	125 °C	-40 °C		10-VFDFN Exposed Pad	SPI	Inductance-to-Digital Converter	Single Supply	1.71 V	3.46 V		Surface Mount	10-VSON (3x3)	24 b	1	180 k per second

Catalog

1-Ch, 1.8V, 24-bit L, 16-bit Rp, inductance to digital converter for high speed applications

Key Features

• Wide Operating Voltage Range: 1.8 V to 3.3 VSensor Frequency Range: 500 kHz to 10 MHzRPResolution: 16-BitL Resolution: 16- or 24-Bit180-kSPS Conversion RateThreshold Detection Functionality1% Part-to-Part Variation in RPMeasurementSupply Current:1.4-µA Shutdown mode135-µA Sleep mode1.9-mA Active Mode (no sensor connected)Sub-Micron Distance Resolution AchievableRemote Sensor Placement Isolating the LDC from Harsh EnvironmentsRobust Against Environmental Interferences such as Oil, Water, Dirt, or DustMinimal External ComponentsMagnet-Free OperationOperating Temperature: –40°C to +125°CWide Operating Voltage Range: 1.8 V to 3.3 VSensor Frequency Range: 500 kHz to 10 MHzRPResolution: 16-BitL Resolution: 16- or 24-Bit180-kSPS Conversion RateThreshold Detection Functionality1% Part-to-Part Variation in RPMeasurementSupply Current:1.4-µA Shutdown mode135-µA Sleep mode1.9-mA Active Mode (no sensor connected)Sub-Micron Distance Resolution AchievableRemote Sensor Placement Isolating the LDC from Harsh EnvironmentsRobust Against Environmental Interferences such as Oil, Water, Dirt, or DustMinimal External ComponentsMagnet-Free OperationOperating Temperature: –40°C to +125°C

Description

The LDC1101 is a 1.8-V to 3.3-V, high-resolution inductance-to-digital converter for short-range, high-speed, contactless sensing of position, rotation, or motion, enabling reliable, accurate measurements even in the presence of dust or dirt, making it ideal for open or harsh environments. The LDC1101 features dual inductive measurement cores, allowing for > 150 ksps 16-bit RPand L measurements simultaneous with a high-resolution L measurement which can sample at > 180 ksps with a resolution of up to 24 bits. The LDC1101 includes a threshold-compare function which can be dynamically updated while the device is running. Inductive sensing technology enables precise measurement of linear/angular position, displacement, motion, compression, vibration, metal composition, and many other applications in markets including automotive, consumer, computer, industrial, medical, and communications. Inductive sensing offers better performance and reliability at lower cost than other, competing solutions. The LDC1101 offers these benefits of inductive sensing in a small 3-mm × 3-mm 10-pin VSON package. The LDC1101 can be easily configured by a microcontroller using the 4-pin SPI™. The LDC1101 is a 1.8-V to 3.3-V, high-resolution inductance-to-digital converter for short-range, high-speed, contactless sensing of position, rotation, or motion, enabling reliable, accurate measurements even in the presence of dust or dirt, making it ideal for open or harsh environments. The LDC1101 features dual inductive measurement cores, allowing for > 150 ksps 16-bit RPand L measurements simultaneous with a high-resolution L measurement which can sample at > 180 ksps with a resolution of up to 24 bits. The LDC1101 includes a threshold-compare function which can be dynamically updated while the device is running. Inductive sensing technology enables precise measurement of linear/angular position, displacement, motion, compression, vibration, metal composition, and many other applications in markets including automotive, consumer, computer, industrial, medical, and communications. Inductive sensing offers better performance and reliability at lower cost than other, competing solutions. The LDC1101 offers these benefits of inductive sensing in a small 3-mm × 3-mm 10-pin VSON package. The LDC1101 can be easily configured by a microcontroller using the 4-pin SPI™.