A Systematic Approach Towards the Implementation of a Low-Noise Amplifier in Sub-Micron CMOS Technology

A multi-step P-cell for LNA design automation

“…2: for any specified target circuit performance, the P-Cell first chooses the optimal LNA topology and then calculates the optimal values for each circuit component. In other words, the P-Cell determines the circuit parameters such as transistor size, bias condition and passive value automatically for any given circuit performance specifications, which is a reverse-direction approach compared with the commonly-used approach in the synthesis [1][2][3] (calculating the circuit performance metrics from chosen circuit parameters).…”

“…Available LNA design automation is mainly based on circuit synthesis [1][2][3]. Starting at some initial circuit component values such as transistor size, bias condition and passive values, the circuit performance metrics are calculated and then a cost function is evaluated.…”

Design space exploration of inductive degenerated Common - Source Low Noise Amplifiers (CS-LNA)

“…However, this further complicates the expression for determination of L s , and hence the model in Fig. 2 a has been followed by many authors [1,2,3,4,5,7]. Further, in all the models of Fig.…”

“…This model includes the gate to source capacitor and a dependent current source controlled by the voltage between gate to source terminals, but other capacitance and transconductance effects are not included. This simple model has also been used to derive the performance related analytical equations to arrive at a nominal design systematically [4,5]. The neglect of parasitic effects results in the shift of expected performance from its desired resonant frequency, and calls for considerable effort by way of fine tuning with circuit simulators to meet the required specification.…”