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

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

A review of stochastic resonance: circuits and measurement

Noise in dynamical systems is usually considered a nuisance. However, in certain nonlinear systems, including electronic circuits and biological sensory systems, the presence of noise can enhance the detection of weak signals. The phenomenon is termed stochastic resonance and is of great interest for electronic instrumentation. We review and investigate the stochastic resonance of several bista...

Characterizing nonlinear RF circuits for their in-band signal distortion

This work presents a theoretical discussion on the ability of traditional noise power ratio (NPR) setups to characterize the in-band signal distortion of general RF circuits. It is shown that NPR tests are optimistic in estimating co-channel distortion, as they are blind for the signal-correlated components. Therefore, an alternative standard for co-channel distortion specification and the asso...

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

In a recent paper [1], Giannetti considered the thermal noise generated by a resistor R on a generic output port in any linear network. He reasoned that, because the contribution of the thermal noise of the resistor to the output noise of the circuit vanishes for both R! 0 and R ! 1, there should be a resistor value whose contribution to the output noise is maximal. In order to find that value,...

A two-chip interface for a MEMS accelerometer

A proposed third-order noise-shaping accelerometer interface circuit enhances the signal-to-noise ratio, compared with previously presented interface circuits. The solution for the two-chip implementation is described and a novel cross-coupled correlated double sampling integrator is proposed. This scheme functions even with large parasitic capacitances between the sensor and the interface circ...