Invention Grant
- Patent Title: System and method for analog to digital (A/D) conversion
- Patent Title (中): 用于模数(A / D)转换的系统和方法
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Application No.: US14028244Application Date: 2013-09-16
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Publication No.: US09019140B2Publication Date: 2015-04-28
- Inventor: Jian Hua Zhao , Yuxing Zhang
- Applicant: STMicroelectronics R&D (Shanghai) Co. Ltd.
- Applicant Address: CN Shanghai
- Assignee: STMicroelectronics R&D (Shanghai) Co. Ltd.
- Current Assignee: STMicroelectronics R&D (Shanghai) Co. Ltd.
- Current Assignee Address: CN Shanghai
- Agency: Slater & Matsil, L.L.P.
- Priority: CN201010612304 20101220
- Main IPC: H03M1/38
- IPC: H03M1/38 ; H03M1/06 ; H03M1/46

Abstract:
In one embodiment, a method for converting an analog input value to a digital output value is disclosed. A successive approximation is performed. The analog input is quantized to a first quantized value, which is converted to a first analog value using a DAC. The first analog value is subtracted from the analog input value to form a first residue. The first residue is quantized to form a second quantized value, and a second residue is formed by converting the second quantized value to a second analog value using the DAC and subtracting the second analog value from the first residue value. The second residue is then quantized to form a third quantized value. The first, second and third quantized values are converted into a digital output value. The first, second and third quantized values each have at least three levels.
Public/Granted literature
- US20140015699A1 System and Method for Analog to Digital (A/D) Conversion Public/Granted day:2014-01-16
Information query
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