Original Part
Alternative Part
1. OP282GSZ-REEL7 Substitution Conclusion
The OP282GSZ-REEL7 is a highly viable and performance-upgraded direct replacement for the TL082BCD. The key differences lie in its significantly lower quiescent current (210µA vs. 1.4mA/ch), which drastically reduces power consumption, making it more suitable for battery-powered or low-power applications. Its superior input bias current (3 pA vs. 30 pA) and lower input offset voltage (200 µV vs. 2 mV) provide higher DC accuracy and reduced input error. While its slew rate (9V/µs vs. 13V/µs) is slightly lower, resulting in marginally slower large-signal response at very high speeds, it offers a higher gain-bandwidth product (4 MHz vs. 3 MHz) and a wider supply voltage range (9-36V vs. 10-30V). In most JFET op-amp application scenarios, it enables a smooth replacement with an overall performance improvement.
2. MC33072ADR2G Substitution Conclusion
The MC33072ADR2G is a conditionally viable replacement for the TL082BCD, requiring careful evaluation of its input characteristics. The fundamental difference stems from their differing input stage architectures (standard bipolar vs. J-FET). This results in an input bias current (100 nA vs. 30 pA) that is three orders of magnitude higher for the MC33072ADR2G. Consequently, it is unsuitable for high-impedance signal sources, photodetection circuits, or any application extremely sensitive to input current, as it would introduce significant error. Its advantages include a wider supply voltage range (3-44V vs. 10-30V), higher output current capability (30 mA vs. 10 mA), a comparable slew rate, and a higher gain-bandwidth product. It can serve as a substitute in circuits driving lower impedance loads, operating from a wide supply voltage, or in general-purpose, high-speed AC amplification where high precision is not critical. However, it is completely unsuitable for replacing a JFET op-amp in applications requiring high input impedance.
Analysis ID: 61DB-598D000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com