Results 261 to 270 of about 862,186 (311)
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A low-noise low-drift transducer ADC
IEEE Journal of Solid-State Circuits, 1997An analog-to-digital converter (ADC) is described that takes the output from a load-cell transducer directly and performs amplification and signal-conditioning as well as high-resolution conversion. A very low offset drift of 10 nV//spl deg/C is achieved by a chop mode that includes the entire analog signal path.
Damien McCartney +3 more
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The Journal of the Acoustical Society of America, 1985
A practical method of computation is described for making periodic signals V(t) which have a given frequency spectrum and which minimize the variance 〈(V2−〈V〉2)2〉 in power as a function of time. These signals can be used to measure the spectral response of a system (the transfer function): They represent a significant improvement over traditional ...
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A practical method of computation is described for making periodic signals V(t) which have a given frequency spectrum and which minimize the variance 〈(V2−〈V〉2)2〉 in power as a function of time. These signals can be used to measure the spectral response of a system (the transfer function): They represent a significant improvement over traditional ...
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Low-frequency noise in low 1/f noise dc SQUID’s
Applied Physics Letters, 1986We demonstrate that the low-frequency noise in our edge junction dc superconducting quantum interference devices, with a basic 1/f flux noise of 2×10−12 Φ20/Hz at 1 Hz, can all be accounted for in terms of junction critical current fluctuations. A novel modulation readout scheme is able to cancel the effect of junction critical current fluctuations and
V Foglietti +6 more
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Broadband noise and distortion cancelling low noise amplifier
2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS), 2017In this paper, a new broadband low noise amplifier (LNA) is proposed. The LNA utilizes a composite NMOS/PMOS cross-coupled transistor pair and a difference amplifier to in-crease the linearity while reducing the noise figure. The introduced approach provides partial cancellation of distortion and noise generated by the input transistors, hence ...
Ahmad Qassem Dawoud +2 more
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Ultra low-noise preamplifier for low-frequency noise measurements in electron devices
IEEE Transactions on Instrumentation and Measurement, 1991The design and realization of an ultra-low-noise, high-input-impedance amplifier for low-frequency noise measurements in electronic devices is presented. Special care is devoted to the solution of typical problems encountered in the design of low-noise low-frequency equipment, such as power supply noise and temperature fluctuations. The ultra-low-noise
NERI, BRUNO +2 more
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A noise optimization technique for integrated low-noise amplifiers
IEEE Journal of Solid-State Circuits, 2002Based on measured four-noise parameters and two-port noise theory, considerations for noise optimization of integrated low-noise amplifier (LNA) designs are presented. If arbitrary values of source impedance are allowed, optimal noise performance of the LNA is obtained by adjusting the source degeneration inductance.
Jung-Suk Goo +5 more
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1998 Conference on Optoelectronic and Microelectronic Materials and Devices. Proceedings (Cat. No.98EX140), 2002
The theory of input equivalent noise is detailed and applied to the design of low noise amplifiers suitable for high impedance (>100 M/spl Omega/) photovoltaic IR detectors and relatively low impedance (
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The theory of input equivalent noise is detailed and applied to the design of low noise amplifiers suitable for high impedance (>100 M/spl Omega/) photovoltaic IR detectors and relatively low impedance (
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Ultra low noise current sources
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings, 1998The current sources which are normally used in research laboratories are not suitable for low noise measurement systems because of the unacceptable level of low frequency noise which they introduce in the measurement chain. The most important source of low frequency noise in such instruments is the solid state device (usually a Zener diode) which is ...
Carmine Ciofi +3 more
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Ultra low noise microwave oscillators with low residual flicker noise
Proceedings of 1995 IEEE MTT-S International Microwave Symposium, 2002This paper describes the design of two low noise microwave oscillators operating at 7.6 GHz. These oscillators use room temperature sapphire resonators operating in the TE/sub 01//spl delta/ mode which demonstrate unloaded Q's of 44,000. Silicon transposed gain amplifiers are used to produce low flicker noise corners of 1 to 2 kHz and a phase noise of -
J.K.A. Everard, M. Page-Jones
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A filter for low EMI and low noise
AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360), 2003Recently, electromagnetic interference (EMI) and radiated emission have become a major problem for high speed circuit and package designers, Most of them are due to power and ground fluctuation. Decoupling capacitors have been mostly used to reduce the power/ground bounce of high-speed digital systems and boards.
null Young-Hwan Uun +4 more
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