AD5116BCPZ10-500R7

Overview

The AD5116BCPZ10-500R7 is a single-channel, nonvolatile digital potentiometer featuring 64 tap positions and a nominal resistance of 10 kΩ. It utilizes a push-button interface for manual control and includes an adaptive debouncer to filter contact bounce. The device operates on a 2.3 V to 5.5 V supply with a maximum wiper current of ±6 mA. Key electrical parameters include a resistor tolerance of ±8%, a temperature coefficient of 35 ppm/°C, and a bandwidth of 2 MHz at the 10 kΩ setting. It is housed in an 8-lead LFCSP package.

Feature Summary

• Push-button interface with built-in adaptive debouncer
• Nonvolatile EEPROM memory for power-up position retention
• Low wiper resistance feature (45 Ω typical at bottom scale)
• ±8% guaranteed resistor tolerance

Applications

• Mechanical potentiometer replacement
• Audio volume control
• LCD panel brightness and contrast control
• Sensor calibration

Procurement Notes

Verify the specific resistance value suffix within the part number to ensure the correct component variant is procured. Confirm that the ordering suffix matches the required packaging format. Cross-reference the manufacturer's official documentation to validate all technical specifications before integration.

Selection Notes

Select this component for applications requiring manual adjustment via tactile switches without external logic. Ensure the circuit design accommodates the 10 kΩ nominal resistance and the ±6 mA continuous current limit. Verify that the operating voltage range aligns with the system's 2.3 V to 5.5 V supply constraints.

Part Context

This component belongs to the AD5116 family of nonvolatile digital potentiometers. It is distinguished by its push-button control interface, contrasting with other family members that utilize I2C or Up/Down serial interfaces. The device provides a direct replacement for mechanical potentiometers in space-constrained designs.

Replacement Considerations

Direct functional substitutes within the same interface category are not explicitly listed in the provided documentation. When replacing, verify pin compatibility and ensure the alternative supports the required push-button input logic and nonvolatile storage capabilities.

FAQ

How does the device handle mechanical switch bounce?

The AD5116 features a built-in adaptive debouncer that ignores invalid bounces from mechanical switches. It requires a logic high signal duration longer than 8 ms to register a valid increment or decrement command.

What is the purpose of the ASE pin?

The Automatic Save Enable (ASE) pin controls whether the wiper position is automatically stored in EEPROM after 1 second of inactivity. It also serves as an indicator when the wiper reaches the maximum or minimum resistance scale.

How is the low wiper resistance achieved?

The device includes extra steps called bottom scale and top scale. At bottom scale, the wiper resistance decreases to typically 45 Ω. These extra steps are not included in the standard INL/DNL specifications.