Results 221 to 230 of about 1,437 (273)

Generalization of the principle of chopper stabilization

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 2003
The concept of traditional chopper-stabilized amplifiers is extended to general linear dynamical and certain types of nonlinear circuits. Simulation results are given to confirm the theory.
L. Toth, Y.P. Tsividis
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Radiation Hardening of Voltage References Using Chopper Stabilization

IEEE Transactions on Nuclear Science, 2015
A technique for enhancing the precision of voltage references in an ionizing radiation environment is presented. Radiation-induced mismatch is identified as a fundamental source of error in voltage reference topologies, and chopper offset cancellation is used to mitigate the effect.
K. J. Shetler, N. M. Atkinson, W. T. Holman, J. S. Kauppila, T. D. Loveless, A. F. Witulski, B. L. Bhuva, E. X. Zhang, L. W. Massengill   +8 more
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Enhanced IIP2 Chopper Stabilized Direct Conversion Mixer Architecture

2019 32nd International Conference on VLSI Design and 2019 18th International Conference on Embedded Systems (VLSID), 2019
This paper presents an improved Second Order Input Intercept Point (IIP2) Direct Conversion Mixer architecture by introducing chopping in the standard active double balanced mixer. The mixing frequency required is half of the RF frequency. This technique improves the second order linearity of the mixer. There is only one active mixer in the signal path
Rohit Rothe, Rajesh Zele
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A Chopper Stabilized Pre-amplifier for Magnetic Sensor

2012 International Conference on Industrial Control and Electronics Engineering, 2012
This paper introduced chopping principle and presented a design of chopper stabilized pre-amplifier for magnetic sensor. Compared with auto-zeroing technique, chopping technique does not fold noise to DC and the noise performance is better. This chopper stabilized pre-amplifier used the integrated instrumentation amplifier AD620 as the main amplifier ...
Zhao Jing, Zhang Shuang, Chen Shudong
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Transient processes and stability in an LC chopper

IEEE Transactions on Aerospace and Electronic Systems, 1988
The analysis of the transient and steady-state processes in LC choppers is presented. The method, used previously for the analysis of processes in grid-connected and self-commutated converters, is adjusted for analysis of LC chopper's processes. The difference equations describing these processes, are obtained and solved. The analytical solution of the
M.A. Slonim, Z.M. Kremer
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A Low Noise Operational Amplifier Design Using Chopper Stability

Key Engineering Materials, 2013
Noise has become a significant bottleneck limiting the performance of the op amp, and chopper stabilization technology [1] is commonly used to reduce the noise of the op amp. The chopper stabilization technology can significantly reduce the low-frequency 1/f noise of op amp, then reducing the total low-frequency noise of op amp.
Xiao Wei Liu, Liang Liu, Jian Yang, Song Chen, Wei Ping Chen   +4 more
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All MOS transistors bandgap reference using chopper stabilization technique

2010 International SoC Design Conference, 2010
A 0.6-V, 8-μW bandgap reference without BJTs is realized in the standard CMOS 0.13μm technology. All MOS transistors bandgap reference circuit with very low supply voltage 0.6V is designed. The chopper stabilization technique is used to improve the accuracy of the bandgap reference voltage.
H. D. Roh, J. Roh, Q. Z. Duan Duanquanzhen   +2 more
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Chopper stabilized laser-Doppler skin blood velocimeter

SPIE Proceedings, 1993
Laser-Doppler velocimetry (LDV) is an established technique for noninvasive monitoring of skin blood flow. The LDV is based on the interference between the photons scattered from the moving red cells and the surrounding stationary tissue. In this work we have developed a new chopper stabilized LDV method.
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Chopper stabilized sub 1V reference voltage in 65nm CMOS

2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS), 2015
A sub 1V reference circuit is proposed, that exploits the CTAT and PTAT voltages in the beta multiplier circuit to attain a stable voltage with temperature and power supply. A one-time calibration is integrated in the architecture to get a good performance over process. Further, chopper stabilization is proposed in the circuit itself rather than in the
Rakesh Kumar Palani, Aravindhan Rangarajan, Ramesh Harjani   +2 more
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Design and Implementation of chopper-stabilized amplifiers

2010
One observation from the two neural amplifiers described in the previous two chapters is the dominance of flicker noise. Most of the existing power-noise optimization techniques target thermal noise. However, flicker noise is a significant concern for EMG/EEG/ECoG applications, where the bandwidth of interest is much lower (
Jeremy Holleman, Fan Zhang, Brian Otis
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