You’d use a FET if you needed a high-impedance audio preamp or a low-noise RF ... transistor circuit configurations have equivalents with a FET; common-emitter becomes common-source, common-base ...
While LDMOS transistors aren’t exactly new – laterally-diffused MOSFETs have been appearing in RF power applications for decades – the particular parts used for the amp, NXP’s MRF300 power ...
Abstract— Today’s on-chip Analog/Mixed-Signal and RF (A/RF) systems have reached a limit of size and complexity where transistor ... amplifier. The fully differential architecture of the analogue ...