Texas Instruments provides a layout guide in the datasheet, but it's essential to follow additional guidelines: keep analog and digital grounds separate, use a solid ground plane, and route analog signals away from digital signals. Also, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the DVDD pin.
The internal reference voltage can be configured using the REFSEL pin. Connect it to VREF (pin 14) for an internal 2.5V reference or to AVDD (pin 15) for an external reference. Ensure the reference voltage is stable and within the recommended range (2.0V to 3.6V) for optimal performance.
The maximum sampling rate of the ADS8912BRGER is 1 MSPS. However, the power consumption increases with the sampling rate. At 1 MSPS, the typical power consumption is around 12.5mW. To minimize power consumption, consider reducing the sampling rate or using the device's power-down mode.
The ADS8912BRGER outputs data in a 16-bit, two's complement format. Ensure correct data alignment by considering the device's byte ordering (little-endian) and the host system's byte ordering. Also, be aware of the output data rate and the number of clock cycles required for each conversion.
When selecting an external clock source, ensure it meets the device's clock frequency requirements (up to 20MHz). Choose a clock source with low jitter and noise to minimize errors. Also, consider the clock source's power consumption and ensure it is compatible with the ADS8912BRGER's power supply.
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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.
