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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bakken, T. Choma Jr., J. |
| Copyright Year | 1998 |
| Description | Author affiliation: Univ. of Southern California, USA (Bakken, T.) |
| Abstract | The stability of a continuous-time state variable filter is analyzed using the Routh-Hurwitz criterion. This criterion assesses stability by indicating the number of poles that lie in the right-half plane. The filter is examined separately with integrators implemented with an op-amp and an OTA-C. Both amplifier types are characterized by a dominant-pole frequency response, and the stability of each implementation is compared. HSPICE simulations confirm the theoretical analyses, which indicate that the gain-bandwidth product of the op-amps and the bandwidth of the OTAs must be much larger than the desired frequency of operation to ensure stability. Since the analyses assume a dominant-pole response, all higher-order poles of the actual amplifier must also be much greater than the unity-gain frequency to minimize excess phase. |
| Starting Page | 77 |
| Ending Page | 82 |
| File Size | 898969 |
| Page Count | 6 |
| File Format | |
| ISBN | 0818684097 |
| ISSN | 10661395 |
| DOI | 10.1109/GLSV.1998.665203 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1998-02-21 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Filters Operational amplifiers Stability analysis Stability criteria Frequency response Analytical models Bandwidth |
| Content Type | Text |
| Resource Type | Article |
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