Original Part
Alternative Part
1. TL3474AIPWR Substitution Conclusion
The feasibility of substituting TL3474AIPWR for TL084CPT is low, primarily due to significant differences in amplifier type and key parameters. TL3474AIPWR is a standard operational amplifier rather than a J-FET type, with an input bias current as high as 100 nA—far exceeding the 20 pA of TL084CPT. In applications requiring high input impedance, such as sensor interfaces or precision measurement circuits, this could introduce considerable input error and signal distortion. Additionally, its supply current of 3.5 mA (compared to 1.4 mA for TL084CPT) increases system power consumption, while its output current of 34 mA (lower than 40 mA) may limit drive capability. Although its lower minimum supply voltage (4 V vs. 6 V) offers a wider operating range, the absence of TL084CPT’s automotive-grade (AEC-Q100) qualification makes it unsuitable for automotive or high-reliability environments.
2. ADTL084ARUZ-REEL Substitution Conclusion
The feasibility of substituting ADTL084ARUZ-REEL for TL084CPT is relatively high, as it is also a J-FET amplifier with several superior parameters. It offers a higher slew rate (20 V/µs vs. 16 V/µs) and a higher gain-bandwidth product (5 MHz vs. 4 MHz), delivering better performance in high-frequency or fast-signal processing applications. Its extremely low input bias current (2 pA vs. 20 pA) and lower input offset voltage (1.5 mV vs. 3 mV) enhance circuit accuracy and stability. The lower supply current (1.2 mA vs. 1.4 mA) helps reduce power consumption. However, its lower output current (27 mA vs. 40 mA) may result in insufficient drive capability in high-load applications, and its higher minimum supply voltage (8 V vs. 6 V) restricts the low-voltage operating range. Furthermore, the lack of TL084CPT’s automotive-grade certification requires careful evaluation in applications demanding AEC-Q100 compliance.
Analysis ID: 3212-DF75000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com