ADS7861E/2K5 datasheet by Texas Instruments

ADS7861E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the ADS7861E/2K5?
  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.
• How do I optimize the analog input range for the ADS7861E/2K5?
  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.
• What is the maximum sampling rate of the ADS7861E/2K5?
  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.
• How do I handle the digital output data from the ADS7861E/2K5?
  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.
• What is the purpose of the SYNC pin on the ADS7861E/2K5?
  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.