Abstract
In optical communication systems, transimpedance amplifiers (TIAs) play a critical role as they are used in the front end of receivers to sense the optical inputs thereby converting them into electrical signals. In this paper, a low noise, high gain, and low power TIA is presented in 40 nm CMOS technology. To compensate for the low intrinsic gain of the technology, a structure, which comprises a shunt-shunt feedback amplifier for the first stage and two post-amplifiers for the following stages are designed. Active inductive loads are employed to extend the bandwidth. Post-layout simulation results show that the designed TIA has a bandwidth over 5 GHz, a transimpedance gain 75 dBΩ, and an input-referred noise current in bandwidth less than 8 pA/√Hz. The total layout occupies a chip estate of 0.0052 mm2 while the DC power consumption is found to be 7.15 mW without the output buffer, using a single 1.1 V power supply.
| Original language | English |
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| Title of host publication | 2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781728133201 |
| Publication status | Published - 2020 |
| Event | 52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual, Online Duration: 10 Oct 2020 → 21 Oct 2020 |
Publication series
| Name | Proceedings - IEEE International Symposium on Circuits and Systems |
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| Volume | 2020-October |
| ISSN (Print) | 0271-4310 |
Conference
| Conference | 52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 |
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| City | Virtual, Online |
| Period | 10/10/20 → 21/10/20 |
Bibliographical note
Publisher Copyright:© 2020 IEEE
Funding
ACKNOWLEDGMENT This work was sponsored by the Technological Research Council of Turkey under the project TÜB˙TAK 1001 118E253.
| Funders | Funder number |
|---|---|
| Technological Research Council of Turkey | TÜB˙TAK 1001 118E253 |