ADS8401IBPFBT datasheet by Texas Instruments

ADS8401IBPFBT Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS8401IBPFBT to achieve optimal performance?
  Texas Instruments provides a layout guide in the datasheet, but for optimal performance, it's recommended to follow a star-grounding scheme, keep analog and digital grounds separate, and use a solid ground plane. Additionally, keep the analog input traces short and away from digital signals.
• How do I handle the high-speed digital outputs of the ADS8401IBPFBT to prevent electromagnetic interference (EMI)?
  To prevent EMI, use a low-inductance path for the digital outputs, keep the output traces short, and use a termination resistor (e.g., 50 ohms) at the receiving end. You can also use EMI-absorbing materials or shielding to reduce radiation.
• What is the maximum clock frequency that can be used with the ADS8401IBPFBT?
  The maximum clock frequency for the ADS8401IBPFBT is 20 MHz, but it's recommended to use a clock frequency of 10 MHz or less to ensure reliable operation and minimize jitter.
• How do I calibrate the ADS8401IBPFBT to achieve optimal accuracy?
  Calibration involves adjusting the offset and gain of the ADC. You can use the internal calibration feature of the ADS8401IBPFBT or use an external calibration signal. Refer to the datasheet for the calibration procedure and equations.
• What is the power-on reset (POR) timing for the ADS8401IBPFBT?
  The POR timing for the ADS8401IBPFBT is typically around 10 ms, but it can vary depending on the power supply ramp-up time and other factors. Ensure that the power supply is stable before accessing the device.