In this article, we will teach you What is a SAR circuit?, What is SAR in VLSI?, What is the difference between ADC and SAR?
What is a SAR circuit?
A SAR circuit, or successive approximation register circuit, is a type of analog-to-digital converter (ADC) that uses a binary search algorithm to convert an analog signal into a digital value. The SAR circuit sequentially approximates the input voltage and compares it to the reference voltage to determine the digital output.
What is SAR in VLSI?
In VLSI (Large Scale Integration), SAR stands for Successive Approximation Register. It is used in ADCS to convert analog signal into digital format with high precision. The SAR architecture leverages a register to iteratively narrow the range of possible digital values until it accurately represents the input signal.
What is the difference between ADC and SAR?
The difference between ADC and SAR is that ADC (analog to digital converter) is a general term for devices that convert analog signals into digital values, while SAR specifically refers to a type of ADC that uses the successive approximation method. SAR ADCs are known for their speed and accuracy in conversion, while other types of ADCs, such as Delta-Sigma or Flash ADC, use different methods and are suitable for different applications.
The Successive Approximation Register (SAR) is a component within an ADC that performs the iterative approximation process to convert an analog signal into a digital value. It sequentially compares the input signal to a reference voltage and adjusts the binary output bit by bit until the closest approximation of the input voltage is found. This method allows for efficient and accurate conversion of analog signals into digital form.
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