FDC2112DNTT Part Information

Details for FDC2112DNTT by Texas Instruments

Electronic & Electrical Components > Sensors & Transducers > Sensors

Part Description

Capacitive sensing is a low-power, low-cost, highresolution contactless sensing technique that can be applied to a variety of applications ranging from proximity detection and gesture recognition to remote liquid level sensing. The sensor in a capacitive sensing system is any metal or conductor, allowing for low cost and highly flexible system design. The main challenge limiting sensitivity in capacitive sensing applications is noise susceptibility of the sensors. With the FDC2x1x innovative EMI resistant architecture, performance can be maintained even in presence of high-noise environments. The FDC2x1x is a multi-channel family of noise- and EMI-resistant, high-resolution, high-speed capacitance-to-digital converters for implementing capacitive sensing solutions. The devices employ an innovative narrow-band based architecture to offer high rejection of noise and interferers while providing high resolution at high speed. The devices support a wide excitation frequency range, offering flexibility in system design. A wide frequency range is especially useful for reliable sensing of conductive liquids such as detergent, soap, and ink.

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Part Features

  • EMI-Resistant Architecture
  • Interface: I2 C
  • Low-Power Sleep Mode: 35 uA
  • Maximum Input Capacitance: 250 nF (at 10 kHz with 1 mH inductor)
  • Maximum Output Rates (one active channel): u2013 13.3 ksps (FDC2112, FDC2114) u2013 4.08 ksps (FDC2212, FDC2214)
  • Number of channels: 2, 4
  • Power Consumption: Active: 2.1 mA
  • Resolution: up to 28 bits
  • Sensor Excitation Frequency: 10 kHz to 10 MHz
  • Shutdown: 200 nA
  • Supply Voltage: 2.7 V to 3.6 V
  • System Noise Floor: 0.3 fF at 100 sps
  • Temperature range: -40u00b0C to +125u00b0C

Part Specifications

IC Interface Type I2C
Supply Voltage Min 2.7V
Supply Voltage Max 3.6V
Sensor Case Style WSON
No. of Pins 12Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • Capacitive Sensing for ProximityWSON12 | RS Components
  • CAPACITANCE TO DIGITAL CONV, 2CH, WSON12; IC Interface Type:I2C; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V; Sensor Case Style:WSON; No. of Pins:12Pins; Operating Temperature Min:-40°C; Operating Temperature Max:125°C; Product RoHS Compliant: Yes | Newark Electronics
  • 2-Ch, 12-bit, capacitance to digital converter | Texas Instruments

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