The recommended power-up sequence is to apply VDD (analog supply) first, followed by VCC (digital supply) and then the clock signal. This ensures proper initialization of the device.
To optimize the analog input range, ensure that the input signal is within the specified range of 0 to VREF (reference voltage). You can also adjust the gain of the input amplifier to match the input signal amplitude.
The maximum sampling rate of the ADS7861E/2K5 is 250 kSPS (kilosamples per second). However, the actual sampling rate may vary depending on the clock frequency and the specific application.
The ADS7861E/2K5 outputs 12-bit digital data in a serial format. You can use a microcontroller or FPGA to receive and process the data. Ensure that the receiving device is configured to match the output data format and clock frequency.
The SYNC pin is used to synchronize the conversion process with an external clock signal. It allows the device to start a new conversion cycle on the rising edge of the SYNC signal, ensuring that multiple devices can be synchronized in a multi-channel system.
ADS7861E/2K5 datasheet
by Texas Instruments
