TL084ACDRE4 datasheet by Texas Instruments

TL084ACDRE4 Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the TL084ACDRE4?
  The maximum power dissipation of the TL084ACDRE4 is 1.4W, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (RθJA) of 67.5°C/W.
• Can I use the TL084ACDRE4 in a high-temperature environment?
  The TL084ACDRE4 is rated for operation from -40°C to 125°C, but it's not recommended to operate it at the maximum temperature for extended periods. Derate the power dissipation accordingly to ensure reliable operation.
• How do I layout the PCB to minimize noise and oscillations with the TL084ACDRE4?
  Follow good PCB layout practices: keep the input and output traces short and separate, use a solid ground plane, and decouple the power supply with capacitors. Also, consider using a guard ring around the op-amp to reduce noise coupling.
• Can I use the TL084ACDRE4 as a comparator?
  While the TL084ACDRE4 can be used as a comparator, it's not the best choice due to its relatively slow slew rate (13V/μs) and limited output current (±20mA). Consider using a dedicated comparator IC for better performance.
• How do I choose the correct resistor values for the feedback network?
  Choose resistor values that provide the desired gain and bandwidth while ensuring stability. A good starting point is to use a ratio of 1:10 for the feedback resistors (e.g., Rf = 10kΩ, Rg = 1kΩ). Then, adjust the values based on the specific application requirements.