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FDC2212 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce FDC2212
Description  Capacitance-to-Digital Converter for Proximity Level Sensing Applications
Download  60 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

FDC2212 Fiches technique(HTML) 1 Page - Texas Instruments

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IN0A
IN0B
IN3A
IN3B
FDC2114 / FDC2214
VDD
GND
SCL
SDA
Int. Osc.
ADDR
INTB
SD
GND
MCU
VDD
3.3 V
3.3 V
GPIO
GPIO
0.1 F 1 F
Core
I
2C
I
2C
peripheral
3.3 V
L
Cap
Sensor 0
CLKIN
40 MHz
C
L
Cap
Sensor 3
C
Resonant
circuit driver
Resonant
circuit driver
Product
Folder
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Technical
Documents
Tools &
Software
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Community
FDC2212, FDC2214, FDC2112, FDC2114
SNOSCZ5A – JUNE 2015 – REVISED JUNE 2015
FDC2x1x EMI-Resistant 28-Bit,12-Bit Capacitance-to-Digital Converter for Proximity and
Level Sensing Applications
1 Features
3 Description
Capacitive sensing is a low-power, low-cost, high-
1
EMI-Resistant Architecture
resolution contactless sensing technique that can be
Maximum Output Rates (one active channel):
applied to a variety of applications ranging from
13.3 ksps (FDC2112, FDC2114)
proximity detection and gesture recognition to remote
liquid level sensing. The sensor in a capacitive
4.08 ksps (FDC2212, FDC2214)
sensing system is any metal or conductor, allowing
Maximum Input Capacitance: 250 nF (at 10 kHz
for low cost and highly flexible system design.
with 1 mH inductor)
The main challenge limiting sensitivity in capacitive
Sensor Excitation Frequency: 10 kHz to 10 MHz
sensing applications is noise susceptibility of the
Number of channels: 2, 4
sensors. With the FDC2x1x innovative EMI resistant
Resolution: up to 28 bits
architecture, performance can be maintained even in
presence of high-noise environments.
System Noise Floor: 0.3 fF at 100 sps
Supply Voltage: 2.7 V to 3.6 V
The FDC2x1x is a multi-channel family of noise- and
EMI-resistant,
high-resolution,
high-speed
Power Consumption: Active: 2.1 mA
capacitance-to-digital converters for implementing
Low-Power Sleep Mode: 35 uA
capacitive sensing solutions. The devices employ an
Shutdown: 200 nA
innovative narrow-band based architecture to offer
high rejection of noise and interferers while providing
Interface: I2C
high resolution at high speed. The devices support a
Temperature range: -40°C to +125°C
wide excitation frequency range, offering flexibility in
system design. A wide frequency range is especially
2 Applications
useful for reliable sensing of conductive liquids such
as detergent, soap, and ink.
Proximity Sensor
Gesture Recognition
Device Information(1)
Level Sensor for Liquids, including Conductive
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ones such as Detergent, Soap, and Ink
FDC2112, FDC2212 WSON (DNT 12)
4.00 mm x 4.00 mm
Collision Avoidance
FDC2114, FDC2214 WQFN (RGH 16)
4.00 mm x 4.00 mm
Rain, Fog, Ice, Snow Sensor
(1) For all available packages, see the orderable addendum at
Automotive Door and Kick Sensors
the end of the datasheet.
Material Size Detection
Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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