Texas Instruments provides a layout and routing guide in the application note SLAA554, which recommends a star-ground configuration, separate analog and digital grounds, and careful routing of sensitive analog signals.
The ADS8320E/250G4 has a built-in calibration circuit, but it may require additional calibration steps depending on the specific application. TI provides a calibration guide in the application note SLAA555, which covers offset and gain calibration, as well as temperature compensation.
The maximum sampling rate of the ADS8320E/250G4 is 250 kSPS, but it can be adjusted to lower rates to reduce power consumption. The power consumption increases with sampling rate, so it's essential to balance sampling rate and power consumption based on the specific application requirements.
The ADS8320E/250G4 has built-in overvoltage protection (OVP) and undervoltage protection (UVP) mechanisms. The OVP protects the device from input voltages exceeding 6 V, while the UVP prevents the device from operating below 2.7 V. Additionally, the device has a power-on reset (POR) circuit that ensures proper startup and reset.
TI recommends using a combination of ceramic and electrolytic capacitors for power supply decoupling, as well as a ferrite bead or inductor to filter out high-frequency noise. A 10 μF ceramic capacitor and a 10 μF electrolytic capacitor in parallel are recommended for the analog supply, while a 100 nF ceramic capacitor is recommended for the digital supply.
ADS8320E/250G4 datasheet
by Texas Instruments
