Design analog and mixed-signal circuits for CMOS image sensors, including: Pixel arrays and architectures. Column amplifiers. Analog-to-digital converters (ADCs). Bias generators and reference circuits. Circuit simulation and verification, including: Run detailed SPICE simulations. Perform corner analysis and Monte Carlo simulations. Temperature and process variation analysis. Noise analysis and optimization. Layout design and verification, including: Create and optimize analog circuit layouts. Ensure compliance with design rules. Perform parasitic extraction and post-layout simulations. Technical documentation and collaboration, including: Collaborate with digital design, system architecture, and test teams. Participate in design reviews. Support chip verification and validation. Performance optimization, including: Improve sensor parameters like H-banding, noise, linearity, etc. Address cross-talk and other interference issues.