| Presentation | 2008-07-11 A Novel 900mV Single-Stage Class-AB Amplifier for a Σ-Δ Modulator with the Switched-Opamp Technique(Session9A: Silicon Devices IV) Oh Jun KWON, Kae Dal KWACK, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A novel 900mV single-stage class-AB amplifier for the switched-OpAmp technique is presented. The Dynamic Current Source (DCS) circuit which boosts up the tail currents of the amplifier to improve the slew-limited characteristics is proposed. The tail current of the proposed circuit is well defined and independent from technology parameters and supply variations. The tail current of the amplifier is 40uA with zero differential voltages, while the maximum output current is nearly 900uA. A single-loop 3rd order Σ-Δ modulator with the proposed amplifier is designed. For 245mV 15.625kHz sinusoidal input signal, the simulated dynamic range of the modulator is 89dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | class-AB CMOS amplifier / switched-Opamp technique / Σ-Δ modulator |
| Paper # | ED2008-95,SDM2008-114 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2008/7/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Novel 900mV Single-Stage Class-AB Amplifier for a Σ-Δ Modulator with the Switched-Opamp Technique(Session9A: Silicon Devices IV) |
| Sub Title (in English) | |
| Keyword(1) | class-AB CMOS amplifier |
| Keyword(2) | switched-Opamp technique |
| Keyword(3) | Σ-Δ modulator |
| 1st Author's Name | Oh Jun KWON |
| 1st Author's Affiliation | Semiconductor Lab., Division of Electronics and Computer Engineering, Hanyang University() |
| 2nd Author's Name | Kae Dal KWACK |
| 2nd Author's Affiliation | Semiconductor Lab., Division of Electronics and Computer Engineering, Hanyang University |
| Date | 2008-07-11 |
| Paper # | ED2008-95,SDM2008-114 |
| Volume (vol) | vol.108 |
| Number (no) | 121 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |