| Presentation | 1995/9/22 Design Techniques for Bipolar Very Low-Voltage Linear Transconductance Amplifiers Based on the Multitail Technique Katsuji Kimura, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Novel circuit design techniques for bipolar very low-voltage linear transconductance amplifiers are presented. The conventional multi-tanh technique are rediscussed, and an adaptively biased emitter-coupled differential pair with resistive divider and multitail cells, such as a triple-tail cell and a quadritail cell, are also discussed as bipolar very low-voltage linear transconductance amplifiers. Furthermore, the super-multi-tanh technique and the ultra-multi-tanh technique for bipolar very low-voltage linear transconductance amplifiers with wide linear input voltage range those are obtained by exchanging unbalanced or balanced emitter-coupled pairs in the multi-tanh cell with unbalanced or balanced triple-tail cells, are proposed. Therefore, the conventional multi-tanh technique can be expanded to the super-and ultra-multi-tanh techniques by utilizing unbalanced and balanced triple-tail cells instead of unbalanced or balanced emitter-coupled pairs. Each differential output current of these bipolar very low-voltage linear transconductance amplifiers is expressed in the form of a fractions with a summation of hyperbolic sine functions in the numerator and a summation of hyperbolic cosine functions in the denominator. Furthermore, the measured transfer curves of these bipolar very low-voltage linear tarnsconductance amplifiers, such as a multi-tanh doublet, an adaptively biased emitter-coupled differential pair with resistive divider, a triple-tail cell, a quadritail cell, a super-multi-tanh doublet and ultra-multi-tanh doublets, at a 1-V suply voltage are shown and obtained practical linear input voltage ranges are compared among them. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | bipolar linear transconductance amplifier / very low-voltage / triple-tail cell / quadritail cell / super-multi-tanh technique / ultra-multi-tanh technique |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 1995/9/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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) | Design Techniques for Bipolar Very Low-Voltage Linear Transconductance Amplifiers Based on the Multitail Technique |
| Sub Title (in English) | |
| Keyword(1) | bipolar linear transconductance amplifier |
| Keyword(2) | very low-voltage |
| Keyword(3) | triple-tail cell |
| Keyword(4) | quadritail cell |
| Keyword(5) | super-multi-tanh technique |
| Keyword(6) | ultra-multi-tanh technique |
| 1st Author's Name | Katsuji Kimura |
| 1st Author's Affiliation | Fundamental Technologies Development Department, Mobile Communications Division, NEC Corporation() |
| Date | 1995/9/22 |
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| Volume (vol) | vol.95 |
| Number (no) | 244 |
| Page | pp.pp.- |
| #Pages | 14 |
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