Flash type analog to digital converting method and circuit

Details Flash type analog to digital converting method and circuit Flash type analog to digital converting method and circuit

2005-06-14

2005-06-14

Williams, Howard L. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S159000

Reexamination Certificate

active

06906656

ABSTRACT:
The present invention discloses a flash type analog to digital converting method, comprising: (a) receiving an analog signal and generating 128-bit digital thermometer code based on the analog signal; (b) 3rd-compressing the 128-bit thermometer code to generate a 16-bit thermometer code and a 3-bit carry; and (c) encoding the 128-bit thermometer code to generate a 7-bit digital signal. Therefore, a layout area can be reduced because, after a 2n-bit thermometer code is compressed, the compressed digital signal is encoded to generate an n-bit digital signal.

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Silva, R.T.; A low-power CMOS folding and interpolation A/D converter with error correction; Proceedings of the 2003 International Symposium on Circuits and Systems, 2003. ISCAS '03. , vol.: 1, pp. 949-952, May 25-28, 2003.

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