18746648. SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER simplified abstract (ROHM CO., LTD.)
Contents
SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER
Organization Name
Inventor(s)
Haruaki Nakamura of Kyoto-shi (JP)
SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18746648 titled 'SUCCESSIVE APPROXIMATION REGISTER A/D CONVERTER
Simplified Explanation: The patent application describes a Successive Approximation Register Analog-to-Digital Converter (SARADC) with redundancy. It involves sampling an analog input voltage, generating a comparison signal based on a threshold voltage, and adjusting control codes in successive cycles.
- The SARADC has redundancy to improve accuracy in analog-to-digital conversion.
- An analog unit samples the input voltage and generates a comparison signal based on a threshold voltage.
- A logic unit adjusts control codes in each cycle by adding or subtracting weights to improve accuracy.
- The control code for the next cycle is determined based on the comparison signal of the current cycle.
- This process continues iteratively to achieve precise analog-to-digital conversion.
Potential Applications: 1. High-precision measurement instruments. 2. Communication systems requiring accurate signal processing. 3. Industrial automation for precise control systems. 4. Medical devices for accurate data acquisition. 5. Automotive systems for sensor data processing.
Problems Solved: 1. Enhances the accuracy of analog-to-digital conversion. 2. Reduces errors in signal processing. 3. Improves the reliability of measurement systems. 4. Enables high-resolution data acquisition. 5. Enhances the performance of control systems.
Benefits: 1. Increased accuracy in analog-to-digital conversion. 2. Improved reliability in signal processing. 3. Enhanced precision in measurement systems. 4. Higher resolution in data acquisition. 5. Better performance in control applications.
Commercial Applications: Title: Advanced SARADC Technology for High-Precision Applications This technology can be utilized in: 1. Scientific research equipment. 2. Aerospace and defense systems. 3. Telecommunications infrastructure. 4. Consumer electronics for improved functionality. 5. Automotive industry for advanced sensor technologies.
Questions about SARADC Technology: 1. How does the redundancy in SARADC improve accuracy in analog-to-digital conversion? 2. What are the key differences between SARADC and other types of analog-to-digital converters?
Original Abstract Submitted
A successive approximation register A/D converter (SARADC) has redundancy. An analog unit samples an analog input voltage and generates a comparison signal indicating a magnitude relationship between a threshold voltage corresponding to a control code and the analog input voltage. A logic unit generates, in an i-th (i≥1) cycle, a first value obtained by adding a weight of an (i+1)-th cycle to a control code of the i-th cycle and a second value obtained by subtracting the weight of the (i+1)-th cycle from the control code of the i-th cycle. When a comparison signal of the cycle is determined, the logic unit supplies one of the first value and the second value corresponding to the comparison signal to the analog unit as a control code of the (i+1)-th cycle.
