Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADS1205IRGER close to the analog signal sources to minimize noise. Additionally, it's recommended to use a separate analog ground plane and to keep digital signals away from the analog signals.
To optimize the ADC's performance, it's recommended to follow the guidelines in the datasheet for input impedance, signal amplitude, and clock frequency. Additionally, consider using a low-pass filter to remove high-frequency noise, and ensure that the analog input signals are properly biased and terminated.
The ADS1205IRGER's performance is affected by temperature, with changes in offset voltage, gain error, and noise floor. It's recommended to consider temperature compensation and calibration in the system design to ensure accurate measurements over the operating temperature range.
The ADS1205IRGER's digital output data is in a 24-bit twos-complement format. It's recommended to use a microcontroller or FPGA to handle the data, and to consider using a FIFO or buffer to handle the data stream. Additionally, ensure that the digital interface is properly terminated and that the clock and data signals are properly synchronized.
The recommended power-up sequence is to apply the analog power supply (AVDD) first, followed by the digital power supply (DVDD), and then the clock signal. For power-down, the sequence should be reversed. It's also recommended to ensure that the power supplies are stable and well-regulated to prevent damage to the device.
ADS1205IRGER datasheet
by Texas Instruments
