A 65 nm CMOS Analog Programmable Standard Cell Library for Mixed-Signal Computing

Integrated circuit (IC) design for analog computing requires similar toolflows and synthesis as large-scale digital systems, in-turn necessitating a library of general-purpose analog cells. To this end, we present a programmable, floating-gate (FG)-based analog standard cell library in a commercially available 65 nm process that allows analog IC designers to use synthesis tools with an abstracted design mindset similar to large-scale digital design. We fabricate the test cells, which include filters with programmable corners, an analog classifier, and an arbitrary waveform generator (AWG); experimentally characterize FG programming; and experimentally demonstrate the performance of the standard cells. Overall, the standard cells achieve a similar or smaller footprint than previous approaches while leveraging the benefits of FG programming at smaller technology nodes.