TY - GEN
T1 - Current-Mirror Based Ambient Light Rejection Technique for VLC Receiver
AU - Quadir, Nasir A.
AU - Awan, Muhammad Asfandyar
AU - Wang, Bo
AU - Bermak, Amine
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025/5/28
Y1 - 2025/5/28
N2 - Ambient light interference is a significant hurdle as it creates unwanted DC current in optical receivers used for visible light communication, infrared communication, etc., that face solar irradiance in the daytime or unwanted light sources such as bulbs at night. This paper presents a current mirror-based receiver topology. By introducing a current-to-voltage converter module, the receiver can handily remove the background interference. A prototype receiver is designed using a 180 nm CMOS process operating at a speed of 160 MHz. It can cancel up to 100 μA of DC background interference while maintaining a low power dissipation of 7 mW from a 1.8 V supply. Additionally, it achieves a transimpedance gain of 120 dBΩ and an input referred noise of 10 pA/ Hz.
AB - Ambient light interference is a significant hurdle as it creates unwanted DC current in optical receivers used for visible light communication, infrared communication, etc., that face solar irradiance in the daytime or unwanted light sources such as bulbs at night. This paper presents a current mirror-based receiver topology. By introducing a current-to-voltage converter module, the receiver can handily remove the background interference. A prototype receiver is designed using a 180 nm CMOS process operating at a speed of 160 MHz. It can cancel up to 100 μA of DC background interference while maintaining a low power dissipation of 7 mW from a 1.8 V supply. Additionally, it achieves a transimpedance gain of 120 dBΩ and an input referred noise of 10 pA/ Hz.
KW - Ambient light interference
KW - optical receiver
KW - TIA
KW - transimpedance amplifier
KW - visible light communication
UR - https://www.scopus.com/pages/publications/105010616969
U2 - 10.1109/ISCAS56072.2025.11043201
DO - 10.1109/ISCAS56072.2025.11043201
M3 - Conference contribution
AN - SCOPUS:105010616969
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - ISCAS 2025 - IEEE International Symposium on Circuits and Systems, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE International Symposium on Circuits and Systems, ISCAS 2025
Y2 - 25 May 2025 through 28 May 2025
ER -