Cascode amplifier: A cautionary tale

Lidgey, F.J.; Ben-Esmael, Mohamed; Hayatleh, K.; Hart, B.L.

doi:10.1109/csndsp.2012.6292737

Cited by 5 publications

(1 citation statement)

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“…5. Basic circuit is designed from two transistors, One of which acts as a common emitter or common source while the other behaves as a common base or common gate [12], [13]. It proves high output gain and high input impedance but requires low power, two transistors and high supply voltage [14].…”

Section: Cascade and Cascode Amplifiermentioning

confidence: 99%

Nano Scale Low Power Amplifier Using Cascode and Cascade Nutrilization in 45nm CMOS

Sharma¹,

Akashe²

2016

IJEEE

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A low voltage power amplifier mastered by nanoscale CMOS technology has been designed for communication technology and simulated using cadence tool. Basically working of amplifier comprises of boosting up the input to produce a larger version at the output of the devices. An input signal is basically small i.e. a few millivolts to a few microvolt. The main factors concerning small signal amplifier are normally linearity of amplification and magnitude of the output signal, since the value of voltage and current are small in a small-signal amplifier, the amount of power-bearing capacity and efficiency factor are not of much consideration. An amplifier produces greater amount of voltage at the output terminal with reference to the input signal. Large-signal amplifiers, on the side basically offer enough power to the output terminal of power handling device, ranging from few watts to some nano watt. An important function of a large-signal amplifier is the power efficiency of circuit i.e. the maximum amount of power bearing capacity of the circuit, and the impedance of the output device. It is a small dimensional circuit due to the use of nanoscale technology topologies. Basically the circuit has been designed by using feedback mechanism of two stage amplifier, first is the differential amplifier which helps in differently amplifying the signal between its two inputs and the other is the common drain amplifier that helps in producing low power to this power amplifier. The circuit has been designed using 45nm technology. The main objective of the circuit is to produce circuit as minimize as possible in nanoscale or nanometres to produce circuit parameters best suited for latest miniature technology.

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Section: Cascade and Cascode Amplifiermentioning

confidence: 99%