OPA835IRUNT datasheet by Texas Instruments

OPA835IRUNT Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of OPA835IRUNT?
  Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the input and output traces as short as possible. Additionally, it's recommended to use a common-mode choke or a ferrite bead to filter out high-frequency noise.
• How do I ensure stability when using OPA835IRUNT in a gain configuration?
  To ensure stability, it's recommended to use a compensation capacitor (Cc) between the output and the inverting input pins. The value of Cc depends on the gain and bandwidth requirements, but a typical value is around 10-22pF. Additionally, it's recommended to use a low-ESR capacitor for the power supply decoupling.
• What is the maximum capacitive load that OPA835IRUNT can drive?
  The OPA835IRUNT can drive a maximum capacitive load of 100pF. Exceeding this limit may cause oscillations or instability. If a larger capacitive load is required, it's recommended to use a buffer stage or a dedicated line driver.
• How do I protect OPA835IRUNT from overvoltage and ESD damage?
  To protect OPA835IRUNT from overvoltage and ESD damage, it's recommended to use a voltage clamp or a TVS diode at the input pins. Additionally, it's recommended to use a series resistor to limit the input current and to use a capacitor to filter out high-frequency noise.
• What is the recommended operating temperature range for OPA835IRUNT?
  The recommended operating temperature range for OPA835IRUNT is -40°C to 125°C. However, the device can operate up to 150°C with reduced performance and reliability. It's recommended to use a heat sink or a thermal pad to dissipate heat and ensure reliable operation.