AD5112BCPZ5-1-RL7

Overview

The AD5112BCPZ5-1-RL7 is a single-channel, nonvolatile digital potentiometer featuring 64 tap positions and an I2C-compatible interface. It offers a nominal resistance of 5 kΩ with ±8% tolerance and a temperature coefficient of 35 ppm/°C. The device operates on a 2.3 V to 5.5 V analog supply and supports 1.8 V logic levels. Key specifications include a maximum wiper current of ±6 mA, a bandwidth of 4 MHz at the 5 kΩ setting, and low power consumption of 2.5 µA max at 2.7 V. It utilizes EEPROM for data retention, ensuring settings persist across power cycles.

Feature Summary

• Nonvolatile memory with 50-year typical data retention and 1 million write cycle endurance
• I2C serial interface supporting standard (100 kHz) and fast (400 kHz) modes
• Low wiper resistance of 45 Ω typical in extreme positions
• Wide operating temperature range from −40°C to +125°C

Applications

• Mechanical potentiometer replacement
• Audio volume control
• LCD panel brightness and contrast adjustment
• Programmable voltage to current conversion
• Sensor calibration

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm resistance value and package type. Ensure compatibility with the target system's I2C bus speed and voltage levels before integration. Cross-reference the full part number with the latest datasheet revision to confirm electrical characteristics and pinout definitions.

Selection Notes

Select this component for applications requiring precise, nonvolatile resistance adjustment via a two-wire serial interface. The 5 kΩ variant provides a 4 MHz bandwidth suitable for higher frequency signal processing. Consider the ±8% resistor tolerance and 35 ppm/°C temperature coefficient when designing open-loop circuits or systems requiring tight tolerance matching without external calibration.

Part Context

This part belongs to the AD5110/AD5112/AD5114 family of single-channel digital potentiometers. The AD5112 specifically provides 64 tap positions, distinguishing it from the 128-position AD5110 and 32-position AD5114. All members share similar architectural features, including nonvolatile storage and I2C control, but differ in resolution and available resistance values.

Replacement Considerations

Direct replacements within the same family include the AD5112BCPZ10-1-RL7 (10 kΩ) and AD5112BCPZ80-1-RL7 (80 kΩ), which maintain identical pinouts and functionality with different nominal resistances. Ensure the substitute matches the required resistance value and that the logic supply voltage range remains compatible with the host controller.