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- János Márkus, José B. Silva, Gabor C. Temes
- IEEE Trans. on Circuits and Systems
- 2004

Analog–Digital (A/D) converters used in instrumentation and measurements often require high absolute accuracy, including very high linearity and negligible dc offset. The realization of high-resolution Nyquist-rate converters becomes very expensive when the resolution exceeds 16 bits. The conventional delta–sigma ( ) structures used in telecommunication and… (More)

- G. C. Temes
- 2002

Two digital techniques are described in this tutorial, both aimed at improving the accuracy of delta-sigma data converters. The first one corrects adaptively for mismatch errors in a MASH ADC, while the other acquires and then corrects for the nonlinearity of the intemal multibit DAC used in the ADC.

- Richard Schreier, José B. Silva, Jesper Steensgaard, Gabor C. Temes
- IEEE Trans. on Circuits and Systems
- 2005

Thermal noise represents a major limitation on the performance of most electronic circuits. It is particularly important in switched circuits, such as the switched-capacitor (SC) filters widely used in mixed-mode CMOS integrated circuits. In these circuits, switching introduces a boost in the power spectral density of the thermal noise due to aliasing.… (More)

- Kyehyung Lee, Jeongseok Chae, +4 authors Gabor C. Temes
- ISSCC
- 2008

- Kyehyung Lee, Matthew R. Miller, Gabor C. Temes
- CICC
- 2008

- J. B. Hughes, N. C. Bird, +7 authors P. R. M. Pinheiro
- 1999

Another simulation was made, with the circuit simulated in the basic form, without enhancement circuits, assuming G,,,/Gds and CgslCgd ratios of 1000, with the biasing and signal current sources assumed as ideal. This is not realistic for the basic structures, but is reasonable when it is assumed that the additional enhancement circuits are present. The… (More)

- Shelly Xiao, José B. Silva, Un-Ku Moon, Gabor C. Temes
- ISCAS
- 2004

A switched-R-MOSFET-C filter with tunable corner frequency is described. The tunability is achieved by varying the clock duty cycle using an automatic tuning circuit. This tuning method does not involve a change in any gate voltage, and is therefore particularly suitable for low-voltage and high-linearity applications. The advantages of the proposed method… (More)

- János Márkus, Gabor C. Temes
- IEEE Trans. on Circuits and Systems
- 2004

As the demand for (Delta-Sigma) analog-to-digital converters (ADCs) with higher bandwidth and higher signal-to-noise ratio (SNR) increases, designers have to look for efficient structures with low oversampling ratio (OSR). The Leslie-Singh or –0 MASH architecture is often used in such applications. Based on this architecture, a reduced-sample-rate structure… (More)

- Gabor C. Temes
- 9th European Signal Processing Conference…
- 1998

This tutorial paper explains the principles and areas of application of oversampling data converters. A comparison between Nyquist-rate and oversampling converters is given, and some commonly used architectures discussed for both D/A and A/D oversampling converters.

- Bo Wang, Tetsuya Kajita, Tao Sun, Gabor C. Temes
- IEEE Trans. Instrumentation and Measurement
- 1998