Understanding Successive Approximation ADC in Electronics
Learn about Successive Approximation ADC, a device that converts analog information into digital format for processing by computers and microcontrollers. Explore how it works, its advantages, disadvantages, applications, and more.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
Successive Approximation ADC Akash Prasad, Alex Huynh, Grace Chiou
What is it? ADC is a device that converts the analog information into digital information. Analog information can be temperature, audio sounds, etc. anything measurable in a physical world. Computers and microcontrollers and microprocessor only process digital information. ADC does the conversion by taking in the analog input represent them into the binary format ready to be analyzed using binary search algorithm.
1000 Vin < Vdac Vin > Vdac New Vdac Value: 0100 1100
Left branch: Vin < Vdac Right branch: Vin > Vdac 1000 0100 1100 0010 0110 1010 1110
Left branch: Vin < Vdac Right branch: Vin > Vdac 1000 0100 1100 0010 0110 1010 1110 0001 0011 0101 0111 1001 1011 1101 1111
Advantages vs Disadvantages of Successive Approximation ADCs Advantages Disadvantages Low power consumption High accuracy Low latency time Capable of physical small size Decreasing sampling rate for increasing resolution Increasing physical size with increasing resolution
Applications of Successive Approximation ADCs Multichannel DAQs with 8-16 bit resolution requirements medically implanted devices (ex: cardiac pacemaker, defibrillator) optical communication systems smartphone/smartwatch sensors medical imaging devices (ex: MRI)
Sources Successive Approximation ADCs Successive Approximation ADC: Introduction, Working and Examples (microcontrollerslab.com) Advantages and disadvantages of Successive Approximation ADC Ideal applications of SAR ADC SAR ADCs in Pacemakers and Defibrillators ADCs in MRI
