Texas Instruments recommends a star-ground connection and placing the REF6245IDGKR close to the analog-to-digital converter (ADC) or digital-to-analog converter (DAC) it is supplying, with a low-impedance path to the power supply. Additionally, it's essential to keep the analog and digital grounds separate and connected only at the power supply.
To ensure stability and accuracy, it's crucial to follow the recommended operating conditions, such as keeping the input voltage within the specified range (2.7V to 5.5V), using a suitable output capacitor (e.g., 10uF), and minimizing noise and ripple on the input voltage. Additionally, consider using a low-dropout regulator (LDO) or a voltage regulator with a low noise output to power the REF6245IDGKR.
The typical start-up time for the REF6245IDGKR is around 10ms to 20ms, depending on the output capacitor value and the input voltage. However, this time can vary depending on the specific application and design.
The REF6245IDGKR is specified to operate from -40°C to 125°C, but its accuracy and stability may degrade at higher temperatures. It's essential to consider the temperature coefficient and ensure the device is properly heat-sinked and cooled in high-temperature applications.
To minimize output noise and ripple, use a suitable output capacitor (e.g., 10uF) and consider adding a noise-reducing capacitor (e.g., 100nF) in parallel with the output capacitor. Additionally, ensure the input voltage is clean and well-regulated, and consider using a low-pass filter or a noise-reducing circuit in the output stage.
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REF6245IDGKR Overview
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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.
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