The CA3127 consists of five general purpose silicon NPN
transistors on a common monolithic substrate. Each of the
completely isolated transistors exhibits low 1/f noise and a
value of fT in excess of 1GHz, making the CA3127 useful
from DC to 500MHz. Access is provided to each of the
terminals for the individual transistors and a separate
substrate connection has been provided for maximum
application flexibility. The monolithic construction of the
CA3127 provides close electrical and thermal matching of
the five transistors.