Abstract
In this paper, an integrated constant current laser driver has been designed for biomedical engineering applications, along with an extra reference generator for nearby circuit blocks in the system using the same circuit core. The designed laser driver achieves a continuous wave operation for a vertical-cavity surface-emitting laser (VCSEL) by supplying a current of 12 mA. The reference current source provides a current of 95 μA. The total power consumption of both circuits is 49.4 mW. Monte Carlo analysis has been performed and the operation of both current references have been ensured despite a 3σ process parameter variation.
Original language | English |
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Title of host publication | 2021 IEEE 12th Latin American Symposium on Circuits and Systems, LASCAS 2021 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781728176703 |
DOIs | |
Publication status | Published - 21 Feb 2021 |
Event | 12th IEEE Latin American Symposium on Circuits and Systems, LASCAS 2021 - Arequipa, Peru Duration: 22 Feb 2021 → 25 Feb 2021 |
Publication series
Name | 2021 IEEE 12th Latin American Symposium on Circuits and Systems, LASCAS 2021 |
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Conference
Conference | 12th IEEE Latin American Symposium on Circuits and Systems, LASCAS 2021 |
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Country/Territory | Peru |
City | Arequipa |
Period | 22/02/21 → 25/02/21 |
Bibliographical note
Publisher Copyright:© 2021 IEEE.
Keywords
- biomedical
- capsule endoscopy
- laser driver
- reference current