ADS7829IBDRBR datasheet by Texas Instruments

ADS7829IBDRBR Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS7829IBDRBR to minimize noise and ensure accurate conversions?
  Texas Instruments recommends a 4-layer PCB with a dedicated analog ground plane, and to keep the analog and digital signals separate. Additionally, use short and direct traces for the analog inputs and outputs, and avoid running digital signals near the analog inputs.
• How do I handle the power-on reset (POR) and brown-out reset (BOR) in my design?
  The ADS7829IBDRBR has a built-in POR and BOR circuitry. To handle these, ensure that the power supply ramps up slowly (typically 10ms to 100ms) and that the voltage reaches the minimum operating voltage (VDD) before the device starts operating. You can also add external POR and BOR circuits if needed.
• What is the recommended clock frequency and timing for the ADS7829IBDRBR?
  The recommended clock frequency is between 1MHz to 4MHz. The clock signal should have a 50% duty cycle and rise and fall times of less than 10ns. Additionally, ensure that the clock signal is clean and free of noise to avoid affecting the conversion accuracy.
• How do I calibrate the ADS7829IBDRBR for optimal performance?
  The ADS7829IBDRBR does not require calibration. It has an internal calibration circuit that is performed during power-up. However, you can perform a system-level calibration by measuring the output voltage and adjusting the gain and offset as needed.
• What is the maximum input voltage range for the ADS7829IBDRBR?
  The maximum input voltage range for the ADS7829IBDRBR is VDD + 0.3V. However, it's recommended to keep the input voltage within the specified range (typically 0V to VDD) to ensure accurate conversions.