R
Rolf Schaumann
Researcher at Portland State University
Publications - 58
Citations - 1952
Rolf Schaumann is an academic researcher from Portland State University. The author has contributed to research in topics: Operational amplifier & CMOS. The author has an hindex of 21, co-authored 58 publications receiving 1939 citations.
Papers
More filters
Book
Design of Analog Filters
TL;DR: In this article, the authors present a simulation of lowpass and highpass filters and compare the results with those of the classical lowpass filter and the Cauer filter, and the first-order filter.
Journal ArticleDOI
A linear fully balanced CMOS OTA for VHF filtering applications
TL;DR: In this paper, a linear, fully balanced, voltage-tunable CMOS operational transconductance amplifier (OTA) with large dc gain and wide bandwidth is described, which uses a two-differential-pair transconductor with a cross-coupled input stage together with a negative resistance load for compensating the parasitic output resistance of the OTA.
Proceedings ArticleDOI
The problem of on-chip automatic tuning in continuous-time integrated filters
Rolf Schaumann,M.A. Tan +1 more
TL;DR: In this paper, a discussion of the most important and difficult aspect of the design of fully integrated continuous-time filters is presented, and guidelines are given to aid the designer in avoiding the most prevalent pitfalls, and an illustrative example is presented which incorporates the ideas and concepts discussed.
Journal ArticleDOI
Highly linear voltage-controlled CMOS transconductors
TL;DR: In this paper, a circuit technique for realizing voltage-tunable linear high-frequency CMOS transconductor cells that use two cross-coupled MOS or CMOS transistor pairs operating at saturation is described.