17949149. SUCCESSIVE APPROXIMATION REGISTER (SAR) ANALOG-TO-DIGITAL CONVERTER (ADC) WITH INPUT-DEPENDENT LEAST SIGNIFICANT BIT (LSB) SIZE simplified abstract (QUALCOMM Incorporated)

From WikiPatents
Jump to navigation Jump to search

SUCCESSIVE APPROXIMATION REGISTER (SAR) ANALOG-TO-DIGITAL CONVERTER (ADC) WITH INPUT-DEPENDENT LEAST SIGNIFICANT BIT (LSB) SIZE

Organization Name

QUALCOMM Incorporated

Inventor(s)

Behnam Sedighi of La Jolla CA (US)

SUCCESSIVE APPROXIMATION REGISTER (SAR) ANALOG-TO-DIGITAL CONVERTER (ADC) WITH INPUT-DEPENDENT LEAST SIGNIFICANT BIT (LSB) SIZE - A simplified explanation of the abstract

This abstract first appeared for US patent application 17949149 titled 'SUCCESSIVE APPROXIMATION REGISTER (SAR) ANALOG-TO-DIGITAL CONVERTER (ADC) WITH INPUT-DEPENDENT LEAST SIGNIFICANT BIT (LSB) SIZE

Simplified Explanation

The abstract describes techniques and apparatus for SAR ADCs with variable resolution, where the quantization size of the LSB depends on the amplitude of the analog input signal.

  • SAR ADCs are configured to convert analog input signals to digital output signals.
  • The quantization size of the LSB is variable and depends on the amplitude of the analog input signal.
  • This allows for a higher maximum sampling rate or lower power dissipation in the SAR ADC.

Potential Applications

The technology can be applied in various fields such as telecommunications, medical devices, industrial automation, and consumer electronics.

Problems Solved

1. Higher maximum sampling rate 2. Lower power dissipation

Benefits

1. Improved efficiency in converting analog signals to digital 2. Enhanced performance in various applications 3. Potential cost savings in power consumption

Potential Commercial Applications

Optimizing SAR ADCs with variable resolution for specific industries like telecommunications, medical devices, and consumer electronics.

Possible Prior Art

Prior art may include existing techniques for SAR ADCs with fixed resolution or other methods for improving ADC performance.

Unanswered Questions

How does the variable resolution of the SAR ADC impact its overall accuracy?

The abstract does not provide specific details on how the variable resolution affects the accuracy of the ADC.

Are there any limitations to implementing variable resolution in SAR ADCs?

The abstract does not mention any potential challenges or limitations that may arise when implementing variable resolution in SAR ADCs.


Original Abstract Submitted

Techniques and apparatus for successive approximation register (SAR) analog-to-digital converters (ADCs) with variable resolution. One example SAR ADC is generally configured to convert an analog input signal to a digital output signal, wherein a quantization size of a least significant bit (LSB) associated with the digital output signal is configured to depend on an amplitude of the analog input signal. By utilizing the techniques and apparatus described herein, a SAR ADC may be capable of a higher maximum sampling rate or a lower power dissipation.