Original Part
Alternative Part
1. LMV324QDR Substitution Conclusion
The LMV324QDR is a viable substitute for the original MCP6284T-E/SL, as it maintains package compatibility (14-SOIC) and shares the same maximum supply voltage rating of 5.5V. However, critical performance differences must be considered: its slew rate (1V/µs) and gain bandwidth product (1MHz) are both lower than those of the original (2.5V/µs and 5MHz), which may lead to signal distortion or insufficient bandwidth in high-speed or high-frequency applications. The input bias current (15nA) is significantly higher than the original's 1pA, resulting in substantially increased current error in high-impedance circuits and impacting precision measurements. While its output current (40mA) is higher, offering stronger drive capability, its minimum supply voltage (2.7V) is above the original's 2.2V, limiting compatibility in low-voltage applications. In summary, the LMV324QDR can serve as a low-cost alternative if the application does not demand high speed, bandwidth, or input precision, and if the supply voltage is above 2.7V; otherwise, it is not recommended.
2. AD8604ARZ Substitution Conclusion
The AD8604ARZ offers partial compatibility with the original MCP6284T-E/SL in package (14-SOIC) and supply voltage range (2.7V to 5.5V), making it a viable high-performance substitute. However, the following trade-offs should be evaluated: its slew rate (6V/µs) and gain bandwidth product (8.4MHz) exceed the original's specifications (2.5V/µs and 5MHz), providing faster signal response and wider high-frequency handling capability. Its input bias current (0.2pA) and input offset voltage (80µV) are significantly superior to the original (1pA and 3mV), enhancing precision in low-noise and precision amplification applications. On the downside, its supply current (750µA) is higher, leading to greater power consumption, and its minimum supply voltage (2.7V) is above the original's 2.2V, which may preclude use in ultra-low-voltage scenarios. In summary, the AD8604ARZ is an excellent alternative for applications prioritizing high speed and precision while accepting higher power consumption, provided the supply voltage is compatible.
Analysis ID: 0EDE-5DBB000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com