This paper will explain how the SAR ADC operates by using a binary search algorithm to converge on the input signal. It also explains the heart of the SAR ADC, the capacitive DAC, and the high-speed comparator.

In following videos we will revisit this simplified view of the SAR ADC and use it to help with input drive and voltage reference drive topics. This figure compares the SAR conversion method on the left to the delta-sigma conversion method on the right.

A successive-approximation ADC is a type of analog-to-digital converter (ADC) that digitizes each sample from a continuous analog waveform using a binary search through all possible quantization levels.

Oct 30, 2020 · What is a Successive Approximation ADC? The Successive Approximation ADC is the ADC of choice for low-cost medium to high-resolution applications, the resolution for SAR ADCs ranges from 8 - 18 bits, with sample speeds up to 5 mega-samples per second (Msps).

Dec 28, 2015 · One of the most common analog-to-digital converters used in applications requiring a sampling rate under 10 MSPS is the Successive Approximation Register ADC. This ADC is ideal for applications requiring a resolution between 8-16 bits.

This article explains the operation of the SAR (successive approximation register)-ADC (analog-to-digital converter). It provides a concise description of a model SAR-ADC based on charge redistribution.

High-current transients (~10’s mA range) are present in this REF input where the ADC’s internal capacitor array is switched and charged as the bit decisions are made. Current transient …

Nov 7, 2024 · Understanding SAR ADC operation, advantages, and limitations helps in selecting and optimizing microcontroller applications, whether in simple sensor interfacing, audio processing, or control systems.

The operation of the SAR ADC can be divided into three main stages: sampling, quantization, and conversion. During the sampling stage, the sample and hold circuit captures and holds the input voltage at a specific instant in time.

Oct 24, 2019 · The SAR ADC is the commonly used architecture for data acquisition systems that are widely employed in medical imaging, industrial process control, and optical communication systems.