The CD12AD0X series is a highly integrated ASIC for weak signal acquisition, corely breaking through the "impossible triangle" dilemma of traditional discrete component solutions—balancing high performance, low power consumption, and design simplicity. Leveraging the proprietary CDADC™ technology, it enables the shortest path and purest signal chain from sensor to digital domain without requiring an additional PGA (Programmable Gain Amplifier). The single-chip integrated design simplifies the complex analog front-end (AFE) to a user-friendly digital interface. It not only delivers a single-chip solution for femtoampere (fA)-level signal processing at the pyroelectric detector front-end but also offers customers three core advantages: high performance, low power consumption, and cost-effectiveness, facilitating shorter R&D cycles and accelerated product time-to-market.