4-Channel 12-Bit LDC with I2C

4-Channel-12-Bit-LDC-with-I2C-1430559470_538_429

The 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,

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

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 provideslowest system cost
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 1kHz to 10MHz
Power consumption:
35 µA Low Power Sleep Mode
200 nA Shutdown Mode
3.3V operation
Support internal or external reference clock
Immune to DC magnetic fields and magnets

Applications

  • Automotive ,appliances,knobs in consumer
  • Rotational encoders and linear
  • Buttons in home electronics wearables manufacturing and automotive
  • Slider buttons in consumer products
  • Metal detection in industrial and automotive
  • POS and EPOS
  • Flow meters in consumer and appliances

Source: eeweb

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