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Registered ANALOG DIGITAL CONVERTING DEVICE

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Inventors
Cho Young Kyun, Nam Jaewon, Kwon Jong-Kee, Young-Deuk Jeon
Application No.
12982531 (2010.12.30)
Publication No.
20120062406 (2012.03.15)
Registration No.
8362938 (2013.01.29)
Country
UNITED STATES
Project Code
10MB1700, Development of Analog Circuit Techniques for Mixed SoC based on 45nm CMOS Technology, Kwon Jong-Kee
Abstract
Provided is an analog digital converting device which consumes a low power and guarantees fast operation characteristic. The analog digital converting device includes a sub-ADC and a successive approximation ADC. The sub-ADC converts an external analog signal into a first digital signal by using first and second reference voltages. The successive approximation ADC comprises a plurality of bit streams, and converts the external analog signal into a second digital signal according to a successive approximation operation using the first and second reference voltages. The successive approximation ADC receives the first digital signal, and converts the second digital signal in a state where one of the first and second reference voltages has been applied to the bit streams based on the first digital signal.
KSP Keywords
Analog signal, Digital Signal, Low-Power, Operation characteristics, Sub-ADC, Successive Approximation(SA), Successive Approximation ADC, fast operation