1. AS324MTR-G1 Substitution Conclusion The AS324MTR-G1 is a viable substitute for the original LM2902WYDT in terms of key electrical parameters. Specifications such as input bias current (20 nA), input offset voltage (2 mV), output current per channel (40 mA), and supply voltage range (3V to 36V, slightly better than the LM2902WYDT’s maximum of 30V) are comparable. Additionally, the AS324MTR-G1 exhibits lower power consumption (supply current per channel of 1 mA vs. 1.5 mA). However, several critical differences must be noted. First, the AS324MTR-G1 does not specify its output stage type, whereas the LM2902WYDT features a push-pull output. The AS324MTR-G1 may lack active pull-up and pull-down capability, which could affect load-driving stability and transient response. Second, the AS324MTR-G1 datasheet does not provide slew rate or gain-bandwidth product (GBW) parameters. The LM2902WYDT specifies a slew rate of 0.4 V/µs and a GBW of 1.3 MHz, ensuring adequate dynamic performance for mid-frequency signal processing. The absence of these specifications in the AS324MTR-G1 may result in insufficient performance in high-speed or bandwidth-sensitive applications. Furthermore, the AS324MTR-G1 lacks automotive-grade qualification (such as AEC-Q100), while the LM2902WYDT carries an Automotive rating. This makes the AS324MTR-G1 unsuitable for automotive or high-reliability environments. In summary, the AS324MTR-G1 can be considered as a replacement in general-purpose, low-power, or higher-voltage non-automotive applications. However, if the application relies on push-pull output performance, specific dynamic characteristics, or automotive standards, the substitution is not recommended.