An article entitled "A high-gain CMOS op amp using composite cascode stages," written by Don Comer, Dave Comer, and PhD graduate, Lisha Li was recently published in the March issue of the International Journal of Electronics (British). The article reports work by the BYU Mixed-Signal Circuits group that maximizes op amp gain by operating several of the MOS devices in the subthreshold region. Research in the subthreshold operation of amplifier stages is continuing in an effort to minimize power consumption for portable applications in the biomedical instrumentation area.