CMOS & BJT transistors

Discussion in 'General Electronics Chat' started by sharanbr123, Oct 24, 2014.

  1. sharanbr123

    Thread Starter Member

    Sep 29, 2014
    Hello All,

    I am venturing into the world of analog design domain. Most of the technical literature I have accessed so far in Analog design is based on BJT transistor (PNP/NPN) while my work involves using CMOS transistors.
    I would like to know from members here how I should go about this. Should I switch all my study to CMOS based or I can continue to read either in BJT or CMOS and assume that fundamentals of operation remain the same ...

    Thanks in advance ...
  2. crutschow


    Mar 14, 2008
    The fundamentals of operation (depending upon your definition of that term) remain the same but the details (bias voltage and currents, input impedance levels, etc.) are quite different. For completeness in learning analog design you need to study and understand the operation of both BJTs and CMOS devices.
  3. tshuck

    Well-Known Member

    Oct 18, 2012
    +1 on crutschow's comment.

    I'll add that CMOS is not a transistor, but rather two (or more) MOS (Metal-Oxide-Semiconductor) transistors in a particular arrangement (so as to be Complimentary - the C in CMOS). CMOS typically consists of MOSFETs, aka, IGFETs.