LDC1614

Product Folder Order Now Technical Documents Tools & Software Support & Community LDC1612, LDC1614 SNOSCY9A – DECEMBER 2014 – REVISED MARCH 2018 LDC1612, LDC1614 Multi-Channel 28-Bit Inductance to Digital Converter (LDC) for Inductive Sensing 1 Features 1 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 Sensing Range Beyond Two Coil Diameters 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 System performance Immunity to DC Magnetic Fields and Magnets 2 Applications Knobs in Consumer, Appliances, and Automotive Buttons in Home Electronics, Wearables, Manufacturing, and Automotive Keypads in Manufacturing and Appliances Slider Buttons in Consumer Products Metal Detection in Industrial and Automotive POS and EPOS Simplified Schematic 40 MHz CLKIN Target Sensor 0 IN0A IN0B Target Sensor 1 IN1A IN1B GND LDC1612 3.3 V VDD SD INTB 3.3 V GPIO GPIO MCU VDD Core SDA I2C SCL ADDR 3.3 V I2C Peripheral GND Copyrig...