AD5259BRMZ5

AD5259 is a non-volatile, I²C-compatible 256-position, digital potentiometer. It performs the same electronic adjustment function as mechanical potentiometers or variable resistors. It has enhanced resolution and solid-state reliability. The terms digital potentiometer, VR (variable resistor), and RDAC are used interchangeably. It has a wiper settings which is controllable through an I²C‑compatible digital interface. It is also used to read back the wiper register and EEPROM content. Resistor tolerance is also stored within EEPROM, providing an end-to-end tolerance accuracy of 0.1%. This potentiometer is widely used in application such as LCD panel VCOM adjustment, LCD panel brightness and contrast control, mechanical potentiometer replacement in new designs, programmable power supplies, RF amplifier biasing, automotive electronics adjustment, gain control and offset adjustment, fibre to the home systems, electronics level settings.

• Operating supply voltage is 3V to 5V
• Operating supply current is 2µA max
• 100 year typical data retention at 55°C
• Operating temperature range is -40°C to +125°C
• Packaging style is 10-lead MSOP
• Power-on EEPROM refresh time <lt/> 1ms
• VLOGIC pin provides increased interface flexibility
• Address decode pin AD0 and pin AD1 allow 4 packages per bus
• Software write protect command
• Nominal resistor tolerance is 5Kohm

附註

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party