Top-Down, Constraint-Driven Design Methodology Based Generation of n-bit Interpolative Current Source D/A Converters

To accelerate the design cycle for analog circuits and mixed-signal systems, we have proposed a top-down, constraint-driven design methodology [1]. In this paper we present a design which demonstrates the two principal advantagesthat this methodology provides– a high probability for first silicon which meets all specifications and fast design times. We examine the design of three different 10-bit digital-to-analog (D/A) converters beginning from their performance and functional specifications and ending with the testing of the fabricated parts. Critical technology mismatch information gathered from the testing phase is provided.