LDC131x/LDC161x Inductance-to-Digital Converters

By Texas Instruments 88

LDC131x/LDC161x Inductance-to-Digital Converters

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

LDC1612 and LDC1614 are 2- and 4-channel, 28-bit inductance-to-digital converters (LDCs) for inductive sensing solutions. With multiple channels and support for remote sensing, the LDC1612 and LDC1614 enable the performance and reliability benefits of inductive sensing to be realized at minimal cost and power. The products are easy to use, only requiring that the sensor frequency be within 1 kHz and 10 MHz to begin sensing. The wide 1 kHz to 10 MHz sensor frequency range also enables use of very small PCB coils, further reducing sensing solution cost and size.

Features
  • Easy-to-use: minimal configuration required
  • Measure up to 4 sensors with one IC
  • Multiple channels support environmental and aging compensation
  • Multi-channel remote sensing provides lowest system cost
  • Pin-compatible medium- and high-resolution options
    • LDC1312/4: 2/4-channel 12-bit LDC
    • LDC1612/4: 2/4-channel 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
  • 3.3 V operation
  • Support internal or external reference clock
  • Immune to DC magnetic fields and magnets

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