A good layout and routing practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the analog and digital signal traces separate. Additionally, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the DVDD pin. Refer to the TI application note 'ADS8505 Layout and Routing Guidelines' for more details.
The ADS8505IBDWR has an internal calibration circuit that can be used to calibrate the device. The calibration process involves shorting the CAL pin to the AGND pin and then applying a known voltage to the input pins. The device will then adjust its internal gain and offset to achieve the best possible accuracy. Refer to the datasheet for the specific calibration procedure.
The ADS8505IBDWR can handle input voltages up to 5.5V without damaging the device. However, it's recommended to limit the input voltage to 5V or less to ensure optimal performance and to prevent damage to the device.
Yes, the ADS8505IBDWR can be used in a system with a 3.3V power supply. The device has a wide power supply range of 2.7V to 5.5V, making it compatible with 3.3V systems. However, the device's performance may be affected at lower power supply voltages, so it's recommended to consult the datasheet for specific performance characteristics at 3.3V.
The ADS8505IBDWR has a parallel interface that can be easily interfaced with a microcontroller or FPGA. The device has a 16-bit parallel output that can be connected directly to a microcontroller or FPGA. The interface timing and protocol can be found in the datasheet.
ADS8505IBDWR datasheet
by Texas Instruments
