Abstract: A bubble suppression apparatus is disclosed comprising: a first set of AND gates, wherein each AND gate within the first set has an input configured to receive a binary thermometer code value and one or more adjacent binary thermometer code values; and a second set of AND gates, wherein each AND gate within the second set has an input coupled to two or more outputs of the first set of AND gates.

Abstract: A Half-Gray digital encoding technique is disclosed for use in a parallel analog-to-digital converter (ADC) that reduces the ADC's output errors. A thermometer code, proportional to the ADC's analog input, is provided to a decoder which produces 2.sup.n output lines with one active line for each binary 0-to-1 transition in the thermometer code. A 1-of-(2.sup.n)-to-Half-Gray encoder converts the decoder output to a Half-gray code which has error reducing properties. The Half-Gray code is then provided to an n-bit Half-Gray-to-binary decoder for converting the Half-Gray code to a standard Binary code ADC output.