OPA846ID datasheet by Texas Instruments

OPA846ID Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the OPA846ID?
  The maximum power dissipation of the OPA846ID is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (θJA) of 125°C/W.
• How do I ensure stability when using the OPA846ID in a high-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 good starting point is 2-5pF.
• What is the recommended layout and routing for the OPA846ID to minimize noise and EMI?
  To minimize noise and EMI, it's recommended to use a star-ground configuration, keep the input and output traces short and away from each other, and use a ground plane to shield the device. Additionally, decoupling capacitors should be placed close to the device pins.
• Can I use the OPA846ID in a single-supply configuration?
  Yes, the OPA846ID can be used in a single-supply configuration, but it's recommended to use a voltage divider or a virtual ground circuit to bias the input signals to the middle of the supply voltage range.
• What is the maximum capacitive load that the OPA846ID can drive?
  The OPA846ID can drive a maximum capacitive load of 100pF, but it's recommended to limit the capacitive load to 10pF or less to ensure stability and prevent oscillations.