CMOS vs. bipolar op amps

摘要

Today's system designer has many choices when selecting operational amplifiers (op amps). The three largest op-amp manufacturers collectively have over 1,600 products from which to choose, and that doesn't include specialty amplifiers! How do you sort through this overwhelming number of devices? One way is to start by selecting the optimal process technology. Most manufactur- ers clearly label an op amp as CMOS, bipolar, or even BiCMOS, but what does this mean with regard to the actual application?