4 |
Low Power Amplifier |
4.1 INTRODUCTION
Various circuit techniques have been employed and demonstrated by these amplifiers to achieve low-power operation without compromising too much on the gain, noise, linearity, and size. Most of the time, it is impossible to win everything, thus, some trade-offs will have to be made. But in the end, what really matters is getting the right balance among all the parameters of the amplifier.
4.2 LOW VOLTAGE CMOS AMPLIFIER
When designing analog circuits for operation at reduced supply voltages, careful attention must be paid to the signal swing and noise level. Folded cascode is one of the popular techniques, however, using a low-voltage supply process could also ease the design.
