LTC2418CGN datasheet by Linear Technology

LTC2418CGN Frequently Asked Questions (FAQs)

• What is the maximum sampling rate of the LTC2418CGN?
  The maximum sampling rate of the LTC2418CGN is 1.5Msps (megasamples per second). However, this rate can be limited by the serial interface and the external clock frequency.
• How do I optimize the layout for the LTC2418CGN to minimize noise and ensure accurate readings?
  To optimize the layout, keep the analog and digital grounds separate, use a solid ground plane, and keep the analog input traces short and away from digital signals. Also, use a low-noise power supply and decouple the power pins with capacitors.
• What is the recommended input impedance for the LTC2418CGN?
  The recommended input impedance for the LTC2418CGN is 1kΩ or higher. This ensures that the input signal is not loaded by the ADC and that the signal-to-noise ratio is optimized.
• Can I use the LTC2418CGN with an external reference voltage?
  Yes, the LTC2418CGN can be used with an external reference voltage. The external reference voltage should be between 2.5V and 5.5V, and it should be connected to the REF pin. The internal reference voltage can be disabled by connecting the REFEN pin to GND.
• How do I calibrate the LTC2418CGN for optimal performance?
  The LTC2418CGN does not require calibration. It has an internal calibration circuit that ensures accurate readings. However, the user can perform a system-level calibration by applying a known input voltage and adjusting the digital output to match the expected value.