Original Part
Alternative Part
1. TS1872AIDT Substitution Conclusion
The TS1872AIDT is not a viable substitute. While it offers a wider supply range (1.8V to 6V) and extremely low quiescent current (500μA per channel), making it suitable for low-power applications, its key performance parameters fall significantly short of the original part. The gain-bandwidth product is only 1.8MHz (compared to 50MHz for the OPA2365), the slew rate is merely 0.6V/μs (vs. 25V/μs for the OPA2365), the input bias current is as high as 70nA (vs. 0.2pA for the OPA2365), and the input offset voltage is 1mV (vs. 100μV for the OPA2365). The TS1872 cannot support high-frequency or high-speed signal processing and would introduce significant errors in precision amplification or high-impedance sensing applications. It is fundamentally a low-frequency, low-precision amplifier and is incompatible with the high-speed, high-precision characteristics of the OPA2365.
2. LMV358IDT Substitution Conclusion
The LMV358IDT is not a viable substitute. Although its input offset voltage (100μV) matches the original part, and it offers stronger output current capability (160mA) and lower quiescent current (162μA), its core dynamic performance is severely inadequate. The gain-bandwidth product is only 1.3MHz (compared to 50MHz for the OPA2365), and the slew rate is merely 0.45V/µs (vs. 25V/µs for the OPA2365). Furthermore, its minimum operating voltage is higher (2.7V), and its input bias current (16nA) is orders of magnitude greater than the OPA2365's 0.2pA. These limitations confine the LMV358 to general-purpose, low-frequency amplification with low dynamic requirements. It cannot meet the original part's need for high bandwidth, fast transient response, or high-input-impedance applications.
Analysis ID: DDE1-DCEB000
Based on part parameters and for reference only. Not to be used for procurement or production.
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