Thoughts and Observations on Mixed Signal Design | Cypress Semiconductor
Thoughts and Observations on Mixed Signal Design
A few years back I heard a keynote speech from Prof Mark Horowitz, now chair of the Sanford EE department. He showed the advances that the digital IC design community had made in the last 30 years and compared to the analog IC design community. Analog did not compare well. Very bluntly the average digital designer has more control over 500,000 gates than the analog engineer has over 500 transistors. When the analog guys asked how they could leverage off the digital guys success, the answer was simple. “Make analog designs as digital as possible. I define mixed signal as the crappiest analog you can get away with, followed be digital to fix it up. Delta sigma ADCs are a good example, an analog modulator followed by digital filters. What Prof Horowitz said made perfect sense. What I found interesting was the response by the audience.