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An analog-to-digital converter with Golomb-Rice output codes

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4 Author(s)
W. D. Leon ; Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA ; S. Balkir ; K. Sayood ; M. W. Hoffman

An analog-to-digital converter with data compression capabilities is described. By sharing circuits between an integrating converter and a Golomb-Rice encoder it is possible to jointly perform the tasks of quantization and coding. The Golomb-Rice codes are generated during the conversion cycle by employing a shift register and a digital multiplexer. The final codeword is read out serially from the shift register. The converter can also work in a non-compressing mode. This design provides a compact circuit suitable for on-sensor compression. Simulations at the system and transistor level corroborate the validity of the design.

Published in:

2005 IEEE International Symposium on Circuits and Systems

Date of Conference:

23-26 May 2005