REF5040AIDGKR datasheet by Texas Instruments

REF5040AIDGKR Frequently Asked Questions (FAQs)

• What is the typical output voltage tolerance of the REF5040?
  The typical output voltage tolerance of the REF5040 is ±0.05% (±5 mV) at 25°C.
• How does the REF5040 behave during power-up and power-down?
  The REF5040 has a built-in power-on reset (POR) circuit that ensures a stable output voltage during power-up and power-down. The output voltage ramps up and down slowly to prevent overshoots and undershoots.
• What is the recommended output capacitor value for the REF5040?
  The recommended output capacitor value for the REF5040 is 10 μF to 22 μF, depending on the specific application and noise requirements.
• Can the REF5040 be used in high-temperature applications?
  Yes, the REF5040 is specified to operate from -40°C to 125°C, making it suitable for high-temperature applications. However, the output voltage accuracy and long-term stability may degrade at extreme temperatures.
• How does the REF5040 perform in terms of noise and PSRR?
  The REF5040 has a typical noise floor of 10 μVpp (0.1 Hz to 10 Hz) and a PSRR of 120 dB at 1 kHz, making it suitable for low-noise and high-PSRR applications.