REF3140AIDBZT datasheet by Texas Instruments

REF3140AIDBZT Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the REF3140AIDBZT to minimize noise and ensure optimal performance?
  A good PCB layout for the REF3140AIDBZT involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog layer to minimize noise.
• How do I ensure the REF3140AIDBZT is properly bypassed for optimal performance?
  To ensure proper bypassing, place a 10uF ceramic capacitor between the VCC and GND pins, and a 0.1uF ceramic capacitor between the VCC and AVCC pins. This will help filter out high-frequency noise and ensure stable operation.
• What is the recommended input voltage range for the REF3140AIDBZT?
  The recommended input voltage range for the REF3140AIDBZT is 2.7V to 5.5V. Operating the device outside of this range may affect its performance and accuracy.
• How do I handle the thermal considerations for the REF3140AIDBZT?
  The REF3140AIDBZT has a thermal pad that must be connected to a solid ground plane to ensure proper heat dissipation. Additionally, ensure good airflow around the device and avoid blocking the thermal pad with other components.
• What is the typical start-up time for the REF3140AIDBZT?
  The typical start-up time for the REF3140AIDBZT is around 10ms. However, this time may vary depending on the specific application and operating conditions.