The maximum power dissipation of the TL081ACDR is dependent on the ambient temperature and the package type. For the SOIC package, the maximum power dissipation is 640mW at 25°C. However, it's recommended to derate the power dissipation by 6.4mW/°C above 25°C.
While the TL081ACDR can be used as a comparator, it's not the best choice. The TL081ACDR is an op-amp designed for linear applications, and its output stage is not optimized for high-speed switching. Texas Instruments recommends using a dedicated comparator like the LM339 or TLV349 for comparator applications.
The input impedance of the TL081ACDR is typically around 2MΩ, but it can vary depending on the frequency and the input signal. It's recommended to use an input resistor to match the impedance of the signal source and to reduce noise pickup.
Yes, the TL081ACDR can be used in a single-supply configuration, but it requires careful consideration of the input common-mode range and the output voltage swing. The input common-mode range is typically from VCC- to VCC-1.5V, and the output voltage swing is typically from VCC-1.5V to VCC-0.5V.
The slew rate of the TL081ACDR is typically around 13V/μs, which is relatively slow compared to other op-amps. This can affect the performance of the op-amp in high-frequency applications.