Texas Instruments recommends a star-ground connection, with the REF3450QDGKRQ1 placed close to the analog-to-digital converter (ADC) or digital-to-analog converter (DAC) it is supplying. Additionally, use a solid ground plane, and keep the input and output traces short and separate to minimize noise coupling.
To ensure stability and reliability, follow the recommended operating conditions, including voltage supply, temperature range, and output current. Also, decouple the input and output pins with suitable capacitors, and use a low-ESR capacitor for the output capacitor (COUT).
The typical start-up time for the REF3450QDGKRQ1 is around 10 ms. This means that your system's power-on sequence should allow for at least 10 ms of settling time before using the reference voltage output.
Yes, the REF3450QDGKRQ1 can be used as a voltage reference for multiple devices or channels, but ensure that the total output current does not exceed the maximum rating of 10 mA. Also, consider the output impedance and noise performance when driving multiple loads.
During power-down or brownout conditions, the REF3450QDGKRQ1's output voltage will decay rapidly to zero. This can help prevent unwanted voltage transients or latch-up in downstream circuits. However, ensure that your system's design can handle this behavior and does not rely on the reference voltage during power-down.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
