Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADC close to the analog signal sources. Decoupling capacitors should be placed as close as possible to the VCC and GND pins. A dedicated analog ground plane is also recommended.
The ADS7825UE4 outputs data in a serial format, and the user needs to implement a serial interface to read the data. The user can use a microcontroller or an FPGA to read the data and perform any necessary processing or formatting.
The maximum sampling rate of the ADS7825UE4 is 250 kSPS (kilo-samples per second). However, the actual sampling rate may be limited by the system clock frequency and the conversion time.
The ADS7825UE4 does not require calibration. It has an internal voltage reference and a self-calibrating architecture that eliminates the need for external calibration. However, the user may need to perform system-level calibration depending on the specific application requirements.
The power consumption of the ADS7825UE4 depends on the operating frequency and the supply voltage. At a supply voltage of 5V and a clock frequency of 1 MHz, the typical power consumption is around 15 mW. The user can reduce power consumption by reducing the clock frequency or using a lower supply voltage.
ADS7825UE4 datasheet
by Texas Instruments
