The implementation of high performance signal
processing and signal conditioning block is one of the
most important task in real-time system designing.
Operational amplifiers (Op-amps) are one such among
various essential components of any kind of signal
processing task ranging from simple amplification of
week signals to complex audio and video processing
applications in mixed-signal domain. In past few
decades CMOS implementation of these building
blocks proved superior to its counterparts. The critical
issues in this implementation lie in process variations
and mismatching of devices and components [1]. Some
special layout techniques help us to overcome on the
issues related with mismatches during layout of CMOS
circuits.