2. MC33072ADR2G Substitution Conclusion The MC33072ADR2G is compatible with the original part in package, channel count, and output current. It offers a wider supply voltage range and a slightly higher slew rate, providing greater general-purpose utility. The fundamental distinction, however, lies in its input stage architecture: it employs a standard BJT design versus the original's J-FET type. This directly results in an input bias current (100 nA) that is four orders of magnitude higher than the original (5 pA), along with a higher input offset voltage (500 µV). Consequently, it is entirely unsuitable for any precision application reliant on high input impedance and low input current, such as photodiode transimpedance amplification or buffering high-impedance signal sources. Forced substitution in such circuits would lead to functional failure or severe performance degradation. This device can only be considered for general-purpose voltage amplification, filtering, or signal conditioning scenarios where input impedance and input error are not critical concerns, constituting a downgrade substitution.