Comments on "on resistor-induced thermal noise in linear circuits"

The seemingly paradoxical noise behavior of some active circuits - Instrumentation and Measurement, IEEE Transactions on

HE OUTPUT NOISE of signal amplifiers usually inT creases when the signal bandwidth increases. In addition, the use 'of low-value resistors is recommended in low-noise voltage amplifier design in order to reduce the contribution of their thermal noise to the output noise [ l ] , [ 2 ] . In the course of designing a low-noise ECG acquisition system, we have found that circuit simulations revealed...

Limits to the Fluctuation-Dissipation Theorem for Nonlinear Circuits

It is well known that the equilibrium thermal noise behavior at the terminals of any linear time-invariant (LTI) circuit can be predicted from knowledge of the driving-point impedance and temperature alone. This paper examines the conjecture that similar results hold if the capacitors and inductors are nonlinear. We refine the conjecture by analyzing the behavior of an bridge circuit with the n...

Modeling of Substrate Noise Impact on a Single-Ended Cascode LNA in a Lightly Doped Substrate (RESEARCH NOTE)

Substrate noise generated by digital circuits on mixed-signal ICs can disturb the sensitiveanalog/RF circuits, such as Low Noise Amplifier (LNA), sharing the same substrate. This paperinvestigates the adverse impact of the substrate noise on a high frequency cascode LNA laid out on alightly doped substrate. By studying the major noise coupling mechanisms, a new and efficientmodeling method is p...

On the Thermal Noise Introduced by a Resistor in a Circuit [Correspondence] - Instrumentation and Measurement, IEEE Transactions on

A Minimal-Cost Inherent-Feedback Approach for Low-Power MRF-Based Logic Gates

The Markov random field (MRF) theory has been accepted as a highly effective framework for designing noise-tolerant nanometer digital VLSI circuits. In MRF-based design, proper feedback lines are used to control noise and keep the circuits in their valid states. However, this methodology has encountered two major problems that have limited the application of highly noise immune MRF-based circui...