Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The analog input traces should be short and direct, and the digital output traces should be routed away from the analog inputs. Additionally, decoupling capacitors should be placed close to the device.
The ADS804E/1K outputs 16-bit data in a serial format. The data can be clocked out of the device using the SCLK pin, and the data is valid on the rising edge of the SCLK. The data should be latched into a microcontroller or FPGA on the rising edge of the SCLK to ensure proper data capture.
The maximum sampling rate of the ADS804E/1K is 100 kSPS. However, the actual sampling rate may be limited by the system clock frequency, the conversion time, and the settling time of the analog input signal.
The ADS804E/1K does not require calibration. It has an internal calibration circuit that ensures accurate conversions. However, the device may require an external reference voltage to be connected to the REF pin to set the full-scale range of the converter.
The power consumption of the ADS804E/1K depends on the operating frequency and the supply voltage. At a supply voltage of 5V and an operating frequency of 100 kSPS, the typical power consumption is around 15 mW.
ADS804E/1K datasheet
by Texas Instruments
