Optimized High-speed Receiver Analog Front-end Design Using Cascaded Transimpedance Amplifier and Continuous-time Linear Equalizer for Signal Processing

This work comes up with an improved design for a high-speed receiver analog front-end (AFE), essential for signal processing within contemporary communication systems. The foundation of this design combines a cascaded transimpedance amplifier (TIA) and a continuous-time linear equalizer (CTLE) to realize superior bandwidth and signal integrity. The cascaded TIA structure is carefully designed to reduce noise and amplify the signal as much as possible to enhance the signal-to-noise ratio (SNR). At the same time, the CTLE is also intended to counteract channel-caused inter-symbol interference (ISI) and high-frequency loss, with the goal of recovering the signal accurately at high data rates. The optimization technique uses a holistic approach, taking into account parameters like power consumption, bandwidth, gain, and noise performance. Sophisticated circuit design methodologies, such as feedback networks and compensation techniques, are used to realize optimal performance. Simulation results indicate that the newly suggested AFE design shows tremendous improvement in terms of bandwidth and equalization potential when compared with traditional designs. The cascaded TIA realizes high gain without added noise, while the CTLE successfully alleviates ISI and presents a clean and more accurate signal. Such an optimized AFE design finds applications in high-speed communication fields where signal integrity and bandwidth play crucial roles. The suggested architecture presents a promising solution to realizing high-performance signal processing in challenging communication environments, promoting the development of next-generation communication systems.