DS1809-050+ datasheet by Maxim Integrated Products

DS1809-050+ Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the DS1809-050+?
  The recommended operating voltage range for the DS1809-050+ is 2.7V to 5.5V, although it can operate down to 2.2V with reduced performance.
• How do I ensure reliable communication between the DS1809-050+ and the microcontroller?
  To ensure reliable communication, make sure to use a pull-up resistor on the SCL line, use a clock frequency within the recommended range (100 kHz to 400 kHz), and implement proper I2C protocol timing and bus management.
• What is the maximum current rating for the digital potentiometer's wiper terminal?
  The maximum current rating for the digital potentiometer's wiper terminal is 1 mA. Exceeding this current may cause damage to the device or affect its performance.
• Can I use the DS1809-050+ in a high-temperature environment?
  The DS1809-050+ is rated for operation up to 125°C, but its performance and accuracy may degrade at higher temperatures. It's recommended to consult the datasheet and application notes for guidance on high-temperature operation.
• How do I store the wiper position in non-volatile memory?
  The DS1809-050+ has a built-in EEPROM that stores the wiper position. To store the wiper position, write the desired value to the wiper register and then issue a store command (0x05) to transfer the value to the EEPROM.