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2-channel, 12-bit Inductance-to-Digital Converter with I2C for Inductive Sensing

Availability: 5,923


Package | PIN: WSON (DNT) | 12
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.42
10-24 $2.18
25-99 $2.03
100-249 $1.82
250-499 $1.70
500-749 $1.48
750-999 $1.28
1000+ $1.25


  • Easy-to-Use – Minimal Configuration Required
  • Up to 4 Channels With Matched Sensor Drive
  • Multiple Channels Support Environmental and Aging Compensation
  • Remote Sensor Position of >20 cm Supports Operation In Harsh Environments
  • Pin-Compatible Medium and High-Resolution Options:
    • LDC1312/4: 2/4-ch 12-Bit LDC
    • LDC1612/4: 2/4-ch 28-Bit LDC
  • Supports Wide Sensor Frequency Range of 1 kHz to 10 MHz
  • Power Consumption:
    • 35 µA Low Power Sleep Mode
    • 200 nA Shutdown Mode
  • 2.7 V to 3.6 V Operation
  • Multiple Reference Clocking Options:
    • Included Internal Clock For Lower System Cost
    • Support for 40 MHz External Clock For Higher Systemperformance
  • Immunity to DC Magnetic Fields and Magnets

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Texas Instruments  LDC1312DNTT

The LDC1312 and LDC1314 are 2- and 4-channel, 12-bit inductance todigital converters (LDCs) for inductive sensing solutions. With multiple channels and support forremote sensing, the LDC1312 and LDC1314 enable the performance and reliability benefits ofinductive sensing to be realized at minimal cost and power. The products are easy to use, onlyrequiring that the sensor frequency be within 1 kHz and 10 MHz to begin sensing. The wide 1 kHz to10 MHz sensor frequency range also enables use of very small PCB coils, further reducing sensingsolution cost and size.

The LDC1312 and LDC1314 offer well-matched channels, which allow fordifferential and ratiometric measurements. This enables designers to use one channel to compensatetheir sensing for environmental and aging conditions such as temperature, humidity, and mechanicaldrift. Given their ease of use, low power, and low system cost these products enable designers togreatly improve on existing sensing solutions and to introduce brand new sensing capabilities toproducts in all markets, especially consumer and industrial applications. Inductive sensing offersbetter performance, reliability, and flexibility than competitive sensing technologies at lowersystem cost and power.

The LDC1312 and LDC1314 are easily configured via an I2C interface. Thetwo-channel LDC1312 is available in a WSON-12 package and the four-channel LDC1314 is available ina WQFN-16 package.