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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Li, F. Morisue, M. |
| Copyright Year | 2002 |
| Abstract | The authors describe a novel Josephson adder based on the radix-2 signed-digit number representation. In the proposed adder, the addition operation can be carried out in a constant time independent of word length owing to the elimination of the carry propagation chain. A critical path for generating the sum signal can be completed through only three series gates. A carry signal and an intermediate sum signal for all digits in the adder are simultaneously generated in the first step, and the final sum signal is obtained in the second step. Features of the proposed adder are a simple construction, ultra-high speed, and low power consumption. The principle of constructing the adder with an 8 b word length using superconducting quantum interference devices (SQUIDs) is described in detail, and simulation results are presented. Results show that reliable operation can be achieved for the longest delay time of 120 ps for the 8 b adder.< |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 2683 |
| Ending Page | 2686 |
| Page Count | 4 |
| File Size | 524338 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 3 |
| Issue Number | 1 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Propagation delay Adders Signal generators SQUIDs Josephson junctions Energy consumption Circuit simulation Power system reliability Delay effects Digital arithmetic |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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