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 routed away from the digital signals and the power supply lines. Additionally, the decoupling capacitors should be placed as close as possible to the device.
To ensure accuracy, it is essential to follow proper PCB layout and routing guidelines, use a stable and low-noise power supply, and ensure that the analog input signals are within the specified range. Additionally, the device should be operated within the recommended temperature range, and the clock frequency should be set according to the datasheet specifications.
The recommended clock frequency for the ADS8320E/250 is between 1 MHz and 10 MHz. A higher clock frequency can improve the conversion speed, but it may also increase the power consumption and noise sensitivity. A lower clock frequency can reduce power consumption and noise sensitivity, but it may also reduce the conversion speed.
The ADS8320E/250 outputs 16-bit digital data in a serial format. The output data is in two's complement format, with the most significant bit (MSB) first. The device also provides a data ready signal (DRDY) to indicate when the conversion result is available.
The power consumption of the ADS8320E/250 depends on the clock frequency, operating mode, and supply voltage. To reduce power consumption, the device can be operated in the low-power mode, the clock frequency can be reduced, and the supply voltage can be lowered. Additionally, the device can be powered down when not in use.
ADS8320E/250 datasheet
by Texas Instruments
