| Presentation | 2000/1/19 A Phase Compensation Technique without Using a Compensation Capacitor for Amplifiers to Drive Large Load Capacitance Tetsuro Itakura, Hironori Minamizaki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A phase compensation is required to obtain stability in a two-gain-stage operational amplifier(opamp). A capacitor is usually used in the phase compensation to keep a phase margin. For opamps used in an LCD driver IC, however, a total phase compensation capacitance is around 1000 pF, since the driver IC contains more than 300 opamps. The phase compensation capacitors increase a chip area. In this article, a phase compensation technique without a capacitor is reported. The proposed compensation introduces a zero by inserting a resistor between an output of the opamp and a capacitive load. A settling time and a low-power potential are described. The experimental results show that the proposed compensation technique is suitable for an opamp with a capacitive load. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Analog signal processing / Integrated electronics / Amplifier / Phase compensation technique |
| Paper # | CAS99-103 |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 2000/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Phase Compensation Technique without Using a Compensation Capacitor for Amplifiers to Drive Large Load Capacitance |
| Sub Title (in English) | |
| Keyword(1) | Analog signal processing |
| Keyword(2) | Integrated electronics |
| Keyword(3) | Amplifier |
| Keyword(4) | Phase compensation technique |
| 1st Author's Name | Tetsuro Itakura |
| 1st Author's Affiliation | Corporate Research & Development Center, Toshiba Corporation() |
| 2nd Author's Name | Hironori Minamizaki |
| 2nd Author's Affiliation | Semiconductor Company, Toshiba Corporation |
| Date | 2000/1/19 |
| Paper # | CAS99-103 |
| Volume (vol) | vol.99 |
| Number (no) | 550 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |