Mohanram adds that "ideally, the gain for an amplifier should be greater than one. However, it is a matter of semantics and several exceptions exist. For instance, the common-drain amplifier has a ...

By adding only a few components, you can turn a temperature- and beta-compensated current sink into a common-emitter (CE) amplifier that maintains a stable biased operating point.

Until now, Toshiba’s line-up of N-channel common-drain MOSFETs has focused on 12V products, mainly for use in protecting the lithium-ion battery packs of smartphones.