QuickSense™ Si114x Gesture, Proximity and Ambient Light Sensor ICs

The QuickSense Si114x family features the industry’s most sensitive and lowest power active infrared proximity and ambient light sensor ICs. The monolithic Si114x sensors include an all digital I2C control interface and up to three infrared LED drivers in an impressively small 2 mm x 2 mm clear QFN package. Capable of controlling one, two and three-infrared LED systems, the sensors enable developers to implement one-dimensional systems with a range of up to 50 cm or multi-dimensional systems capable of advanced motion sensing with a range of up to 15 cm. The robust infrared sensing architecture works in direct sunlight and includes an ambient light sensor capable of sensing light levels up to 128 kLux. The Si114x family is supported within the QuickSense Development Studio.
 
 

Features

  • QuickSense integrated infrared proximity sensing with ambient light sensing
  • Support for advanced touchless gesturing with up to 3 independent LED drivers
  • Ultra-sensitive photodiodes with over 50 cm proximity range
  • I2C interface for ease of communication with host MCU
  • Adjustable proximity detection from 1 cm to over 1 m
  • 1 to 128 kLux dynamic range enables operation in direct sunlight
  • Minimum reflectance sensitivity of <1uW/cm2
  • Short simple pulse 85.6 ns measurement minimizes power consumption
  • <500 nA standby current; typical 9.7 mA current consumption
  • Operating temperature – 40 to 85 °C
  • 15 dynamically adjustable LED current settings
 
 

Applications

Documentation

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Data Sheet (2)

Document NameDescriptionVersionLast Updated
Si114x.pdf
Si114x Data Sheet1.35/23/2012
Si114x-CN.pdf
Si114x Data Sheet (Chinese)1.34/10/2013

User Guides (4)

Document NameDescriptionVersionLast Updated
HID-USBtoIR-RD.pdf
HID USB to IR Reference Design User's Guide0.12/23/2011
Si1140-DK.pdf
Si1140-DK User's Guide0.21/11/2011
Si1142Slider-DEMO.pdf
Si1142Slider-DEMO User's Guide0.21/11/2011
Si114x-MFB.pdf
Si114x-MFB User's Guide0.15/10/2011

Quick Start Guide (3)

Document NameDescriptionVersionLast Updated
IRSlider2EK-QS-Guide.pdf
IRSlider2EK Si1142 Demo Board Quick-Start User's Guide0.21/11/2011
Si1140DK-QS-Guide.pdf
IRSlider2EK Si1142 Demo Board Quick-Start User's Guide0.21/11/2011
Si114x-MFB-qs-guide.pdf
Si114x-MFB Quick-Start Guide0.15/10/2011

Application Notes (7)

Document NameDescriptionVersionLast Updated
AN498.pdf
AN498: Si114x Designer's Guide0.71/25/2012
AN521.pdf
AN521: irLED Selection Guide for Si114x Proximity Applications0.11/17/2011
AN522.pdf
AN522: Using the Si1141 for Touchless Lavatory Appliances0.11/12/2011
AN523.pdf
AN523: Overlay Considerations for the Si114x Sensor0.48/31/2011
AN540.pdf
AN540: Hair Immune Cheek Detection in SmartPhones using the Si1141 Infrared Sensor0.11/12/2011
AN576.pdf
AN576: Si114x Control Panel Application User's Guide0.37/15/2011
AN580.pdf
AN580: Infrared Gesture Sensing0.12/11/2011

White Papers (3)

Document NameDescriptionVersionLast Updated
Designing-Gesture-Based-Human-Interface-Systems.pdf
Designing Intuitive Gesture-Based Human Interface Systems1.09/13/2011
Safeguarding-Public-Access-Terminals-with-Optical-Tamper-Detection-Technology.pdf
Safeguarding Public Access Terminals with Optical Tamper Detection Technology1.011/21/2011
TouchlessSensorIC-WP.pdf
Touchless Gesturing Brings New Innovation to Electronic Product Designs0.11/19/2011

PCN (4)

Document NameDescriptionVersionLast Updated
1201161 Si114x A11 transition std.pdf
1201161 Si114x A11 transition std
1205231_Si114x_ 1_ 8V_functionality.pdf
1205231_Si114x_ 1_ 8V_functionality
1301161-Si114x-Assembly-Site-Addition-(ASECL)-std.pdf
1301161 Si114x Assembly Site Addition (ASECL) std
1303132-IRDA-Devices-EOL.pdf
1303132 IRDA Devices EOL

Design Tools

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Software (7)

Document NameDescriptionVersionUpdated
HID_USB_to_IR_RD.exe
HID USB to IR Reference Design PuzzleSwipe Application
IrMFB_EK.exe
Infrared Multi Function Board Evaluation Kit
IrMFB_EK_ReleaseNotes.txt
Infrared Multi Function Board Evaluation Kit Release Notes
IrSlider2_EK.exe
IrSlider2 Evaluation Kit
Si1140_DK.exe
Si1140 Development Kit
si114x-programmers-toolkit-complete.exe
Si114x Programmer’s Toolkit Development Software (Complete Installation)1.15/24/2013
si114x-programmers-toolkit-lean.exe
Si114x Programmer’s Toolkit Development Software (Excludes LabVIEW Run Time Environment)1.15/24/2013

Schematics/Layout (4)

Document NameDescriptionVersionUpdated
ULADI_SiliconLabs_Reader.exe
ADI Ultra-Librarian Reader for CAD/CAE Schematic Footprints and Symbols .bxl Files
Si1141.bxl
Si1141 CAD/CAE Schematic Footprints and Symbols
Si1142.bxl
Si1142 CAD/CAE Schematic Footprints and Symbols
Si1143.bxl
Si1143 CAD/CAE Schematic Footprints and Symbols

Training (1)

Document NameDescriptionVersionUpdated
Solutions_Active_Infrared_Proximity_Sensing.pdf
Silicon Labs Solutions for Active Infrared Proximity Sensing

Product Matrix

Product Matrix
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Part Number Available DocumentsDescriptionPackage TypePackage SizeOutput TypeDev KitAmbient Light SensorInfrared Range
Si1141Sample
Buy
Data Sheet
I2C proximity and ambient light sensor with 1 LED driverQFN102x2I2CSi1140DKYes50 cm
Si1142Sample
Buy
Data Sheet
I2C proximity and ambient light sensor with 2 LED driversQFN102x2I2CSi1140DKYes50 cm
Si1143Sample
Buy
Data Sheet
I2C proximity and ambient light sensor with 3 LED driversQFN102x2I2CSi1140DKYes50 cm
Silicon Labs' Si114x optical sensor products offer superior range and sensitivity while keeping power demands low. Use this optical sensor current estimator utility to help you determine the current consumption of your application. Specify whether you need proximity light sensing, ambient light sensing or both. Choose your channels, and view the estimated average current results in real time.
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Overview

Documentation

Tools

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Education

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