AD5110BCPZ80-1-RL7

Overview

The AD5110BCPZ80-1-RL7 is a single-channel, nonvolatile digital potentiometer featuring 128 adjustment positions and an I²C-compatible interface. It offers a nominal resistance of 80 kΩ with a maximum tolerance error of ±8%. The device operates on a single analog supply ranging from 2.3 V to 5.5 V and supports logic supplies from 1.8 V to 5.5 V. Key electrical characteristics include a rheostat mode temperature coefficient of 35 ppm/°C, a maximum wiper current of ±6 mA, and power-on EEPROM refresh time under 50 μs. It is housed in a thin 2 mm × 2 mm × 0.55 mm 8-lead LFCSP package.

Feature Summary

• Nonvolatile memory stores resistor tolerance data for end-to-end accuracy of 0.1%.
• I²C-compatible serial interface allows wiper setting control and EEPROM readback.
• Low wiper resistance minimizes array extremes to 45 Ω typical.
• Guaranteed operation over extended industrial temperature range of −40°C to +125°C.

Applications

• Mechanical potentiometer replacement
• Portable electronics level adjustment
• Audio volume control
• LCD panel brightness and contrast control
• Sensor calibration

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and functional parameters. Ensure that any variations in suffix codes do not alter the electrical specifications or package dimensions required for the design.

Selection Notes

Select this component for applications requiring precise, nonvolatile resistance adjustment via a standard two-wire serial bus. The 80 kΩ value and 128-position resolution are suitable for low-resolution DAC implementations and programmable filter configurations where high bandwidth is not the primary constraint.

Part Context

This part belongs to the AD5110/AD5112/AD5114 family of single-channel digital potentiometers. While sharing the same package and interface, variants within the family differ in resolution (128, 64, or 32 positions) and available resistance values (5 kΩ, 10 kΩ, or 80 kΩ).

Replacement Considerations

Direct substitutes within the same family include the AD5110BCPZ10-1-RL7 for a 10 kΩ variant. For different resolutions, consider the AD5112 series (64 positions) or AD5114 series (32 positions), ensuring interface and voltage requirements remain compatible.

FAQ

What is the power-on EEPROM restore time?

The power-on EEPROM refresh time is less than 50 μs.

How is resistor tolerance managed in this device?

Resistor tolerance is stored within the EEPROM, providing an end-to-end tolerance accuracy of 0.1%.

What is the maximum continuous current for the 80 kΩ version?

The maximum continuous current for the A, B, and W pins is ±1.5 mA when the resistance is 80 kΩ.