Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Abstract—Analog–Digital (A/D)… (More)
The Delta-Sigma toolbox requires the Signal Processing Toolbox and the Control Systems Toolbox. Certain functions (clans and designLCBP) also require the Optimization Toolbox. To obtain a copy of the Delta-Sigma toolbox, go to the MathWorks web site
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)
—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… (More)
— The design and performance of a switched-R-MOSFET-C filter is presented in this paper. The filter achieves-77dB THD using a 0.6V supply, and-90dB THD using a 0.8V supply, with a 0.6Vpp differential 2kHz sine input. High linearity at a low supply voltage is achieved by the use of duty-cycle controlled tuning inside a feedback loop.