OPA2137E/250 datasheet by Texas Instruments

OPA2137E/250 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the OPA2137E/250?
  A good PCB layout for the OPA2137E/250 involves keeping the input and output traces short and away from each other, using a ground plane, and placing decoupling capacitors close to the power pins. A 4-layer PCB with a dedicated ground plane is recommended.
• How do I choose the right gain resistors for my application?
  The choice of gain resistors depends on the desired gain, bandwidth, and noise requirements. A good starting point is to use the gain resistor calculator tool provided by Texas Instruments or to consult the application notes for guidance.
• What is the maximum power dissipation of the OPA2137E/250?
  The maximum power dissipation of the OPA2137E/250 is 670mW. However, this can be limited by the thermal resistance of the package and the PCB. It's essential to ensure proper thermal management to prevent overheating.
• Can I use the OPA2137E/250 as a unity-gain buffer?
  Yes, the OPA2137E/250 can be used as a unity-gain buffer. However, it's essential to ensure that the input impedance is matched to the source impedance to prevent signal attenuation.
• How do I filter out noise and electromagnetic interference (EMI) in my circuit?
  To filter out noise and EMI, use a combination of passive filters, such as RC filters or ferrite beads, and ensure good PCB layout practices, such as separating analog and digital grounds and using shielding.