Increasingly complex medical implants are being used to restore a growing range of functions. Cardiac pacemakers, which restore heart function, and cochlear implants, which replace the function of the inner ear, are already routinely implanted. Implants for the brain, vagus nerve, and retina are all under active development. These devices must combine complex computations with biological interfaces while limiting power consumption. Our work on cochlear implants has demonstrated the potential for mixed signal integrated circuits to perform these functions.
C. D. Salthouse and R. Sarpeshkar, "A Practical Micropower Programmable Bandpass Filter For Use in Bionic Ears," IEEE J. Solid-State Circuits, vol. 38, iss. 1, pp. 63-70, Jan. 2003.
C. D. Salthouse and R. Sarpeshkar, "A Micropower Band-Pass Filter For Use in Bionic Ears," IEEE International Symposium on Circuits and Systems 2002 (ISCAS), Vol. 5 pp. V-189-V-192, May 2002.
R. Sarpeshkar, C. Salthouse, JJ Sit, M.W. Baker, S. M. Zhak, T.K.-T. Lu, L. Turiccia, and S. Balster, "An Ultra-Low-Power Programmable Analog Bionic Ear Processor," IEEE Transactions on Biomedical Engineering, vol. 52, iss. 4, pp. 711-727, April 2005.