ADS5500IPAP datasheet by Texas Instruments

ADS5500IPAP Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the ADS5500IPAP?
  The recommended power-up sequence is to apply VDDA (analog power) first, followed by VDD (digital power) and then the clock signal. This ensures proper initialization of the device.
• How do I optimize the analog input signal chain for the ADS5500IPAP?
  To optimize the analog input signal chain, use a low-pass filter to remove high-frequency noise, and ensure the input signal is within the specified voltage range (0 to VREF). Also, use a buffer amplifier if the source impedance is high.
• What is the maximum clock frequency that can be used with the ADS5500IPAP?
  The maximum clock frequency for the ADS5500IPAP is 100 MHz. However, the actual clock frequency used may be limited by the specific application and system requirements.
• How do I handle the digital output data from the ADS5500IPAP?
  The digital output data from the ADS5500IPAP is in 14-bit two's complement format. The data can be processed using a microcontroller or FPGA, and may require additional processing such as filtering or scaling depending on the application.
• What is the purpose of the CAL pin on the ADS5500IPAP?
  The CAL pin is used to initiate the calibration sequence for the ADC. When the CAL pin is pulled low, the ADC enters calibration mode and adjusts its internal settings for optimal performance.