| Presentation | 2002/8/15 A 380-MHz CMOS linear-in-dB Variable Gain Amplifier Osamu WATANABE, Shoji OTAKA, Mitsuyuki ASHIDA, Tetsuro ITAKURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A linear-in-dB signal-summing VGA is fabricated in 0.25 ,μm CMOS technology. Two gain compensation techniques are proposed in order to compensate the gain deviations due to a MOSFET characteristic which has a square-law characteristic or an exponential-law characteristic determined by its current density. Temperature compensation techniques are also proposed. A gain range of 80 dB, a gain error of within ±3 dB, an NF of 11 dB are obtained at 380 MHz by measurement. The VGA consumes 25 mA from 2.5 V. The die size is 1.42 mm × 1.42 mm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CMOS / Variable Gain Amplifier / Linear-in-dB Characteristic / Gain compensation / Mobility / Temperature Compensation / CDMA |
| Paper # | ICD2002-47 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2002/8/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A 380-MHz CMOS linear-in-dB Variable Gain Amplifier |
| Sub Title (in English) | |
| Keyword(1) | CMOS |
| Keyword(2) | Variable Gain Amplifier |
| Keyword(3) | Linear-in-dB Characteristic |
| Keyword(4) | Gain compensation |
| Keyword(5) | Mobility |
| Keyword(6) | Temperature Compensation |
| Keyword(7) | CDMA |
| 1st Author's Name | Osamu WATANABE |
| 1st Author's Affiliation | Corporate Research & Development Center, TOSHIBA Corp.() |
| 2nd Author's Name | Shoji OTAKA |
| 2nd Author's Affiliation | Corporate Research & Development Center, TOSHIBA Corp. |
| 3rd Author's Name | Mitsuyuki ASHIDA |
| 3rd Author's Affiliation | Corporate Research & Development Center, TOSHIBA Corp. |
| 4th Author's Name | Tetsuro ITAKURA |
| 4th Author's Affiliation | Corporate Research & Development Center, TOSHIBA Corp. |
| Date | 2002/8/15 |
| Paper # | ICD2002-47 |
| Volume (vol) | vol.102 |
| Number (no) | 273 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |