2. MIC860YC5-TR Substitution Conclusion The MIC860YC5-TR is a moderate substitute for the LMV821ICT. Its performance parameters are closer to the original but still show differences: Slew rate is slightly higher (3 V/µs versus 1.9 V/µs), offering somewhat faster response. The gain-bandwidth product is moderately lower (4 MHz versus 5.5 MHz), which may slightly attenuate high-frequency performance, though many general-purpose amplification applications may tolerate this. The extremely low input bias current (20 pA versus 60 nA) helps reduce input error, making it suitable for precision measurement; however, the higher input offset voltage (5 mV versus 3.5 mV) can degrade DC accuracy. Supply current is significantly lower (33 µA versus 300 µA), advantageous for battery-powered systems, but output current is weaker (47 mA versus 70 mA), limiting load drive capability. Package and supply voltage range (2.43–5.25 V versus 2.5–5.5 V) are largely compatible. Therefore, in medium-to-low-speed applications where drive strength and precision are not critical, it can serve as a replacement option, provided offset voltage and bandwidth are evaluated against specific requirements.