Publication Type
Conference Paper
Book Title
2024 IEEE International Symposium on Circuits and Systems (ISCAS)
Publication Date
Page Numbers
1 to 5
Publisher Location
New Jersey, United States of America
Conference Name
2024 IEEE International Symposium on Circuits and Systems (ISCAS)
Conference Location
Singapore, Singapore
Conference Sponsor
IEEE
Conference Date
-
Abstract
Hybrid photonic-electronic circuits involving crossdomain feedback signals are difficult to validate and troubleshoot. This paper describes an approach to model and validate an offset-cancellation loop for a hybrid transimpedance amplifier (TIA) using all-electronic circuits. An equivalent electrical model is developed for the tunable interferometer attenuators used for offset trimming, and it includes test features to extract the system performance. The stability analysis of the system shows 75 ◦ of phase margin and 102 dB of gain margin. Measurement results demonstrate good agreement with analysis and successful TIA offset cancellation.
