REF3425IDBVR datasheet by Texas Instruments

REF3425IDBVR Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the REF3425IDBVR?
  It's recommended to place the REF3425IDBVR close to the ADC or DAC, and use a star-ground configuration to minimize noise. A 4-layer PCB with a solid ground plane is recommended. Keep the input and output traces short and away from noise sources.
• How do I ensure accurate voltage reference output?
  To ensure accurate voltage reference output, use a low-ESR capacitor (e.g., 10uF) between the VOUT pin and GND, and a 1uF capacitor between the VIN pin and GND. Also, ensure the input voltage is within the recommended range (2.7V to 5.5V).
• What is the recommended input voltage range for the REF3425IDBVR?
  The recommended input voltage range for the REF3425IDBVR is 2.7V to 5.5V. Operating outside this range may affect the accuracy and stability of the voltage reference output.
• How do I handle power-up and power-down sequencing with the REF3425IDBVR?
  To ensure proper operation, power up the REF3425IDBVR after the input voltage has stabilized. When powering down, ensure the input voltage is removed before the output voltage. A soft-start circuit can be used to control the power-up sequence.
• What is the thermal impedance of the REF3425IDBVR package?
  The thermal impedance of the REF3425IDBVR package (DBVR) is approximately 125°C/W (junction-to-ambient). Proper thermal design and heat sinking are essential to ensure reliable operation.