The second-generation low-noise current source builds upon the original design with comprehensive performance enhancements. Compared with the previous version, it offers an expanded output current range of 10 mA to 200 mA, along with significant improvements in power supply adaptability, modulation bandwidth, and high-current driving capability.

Key performance metrics have been further optimized, including long-term stability (0.6 ppm @ 500 s) and a low temperature coefficient (20 μA/°C), ensuring reliable and stable operation in high-precision measurement applications.