Field-programmable analog arrays (FPAAs) provide a method for rapidly prototyping analog systems. While currently available FPAAs vary in architecture and interconnect design, they are often limited in size and flexibility. For FPAAs to be as useful and marketable as modern digital reconfigurable devices, new technologies must be explored to provide area efficient, accurately programmable analog circuitry that can be easily integrated into a larger digital/mixed signal system. By leveraging recent advances in floating gate transistors, a new generation of FPAAs are achievable that will dramatically advance the current state of the art in terms of size, functionality, and flexibility.
T. S. Hall, C. M. Twigg, P. Hasler, and D. V. Anderson, “Developing large–scale field–programmable analog arrays for rapid prototyping,” International Journal of Embedded Systems, Vol. 1, Nos. 3/4, pp.179–192, 2005