AD5114BCPZ10-1-RL7

Overview

The AD5114BCPZ10-1-RL7 is a single-channel, nonvolatile digital potentiometer featuring 32 tap positions and an I²C interface. It offers a nominal resistance of 10 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 logic levels from 1.8 V to 5.5 V. Key specifications include a maximum wiper current of ±6 mA, low power consumption (2.5 µA max at 2.7 V), and a bandwidth of 2 MHz for the 10 kΩ option. It utilizes EEPROM for data retention, ensuring settings persist across power cycles.

Feature Summary

• Nonvolatile memory with 50-year typical data retention at 125°C
• I²C-compatible serial interface for control and readback
• Low wiper resistance (typical 45 Ω) in extreme positions
• Extended industrial temperature range (-40°C to +125°C)

Applications

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

Procurement Notes

Verify the specific ordering suffix '-1' against official Analog Devices documentation to confirm if it denotes a unique tape-and-reel packaging variant or a specific factory code, as standard datasheets typically list 'AD5114BCPZ10-RL7'. Ensure compatibility with existing PCB footprints for the 8-lead LFCSP package.

Selection Notes

Select this component for applications requiring precise, nonvolatile resistance adjustment via I²C. The 10 kΩ value and 32-position resolution are suitable for general-purpose voltage division or rheostat modes. Consider the 2 MHz bandwidth for high-speed signal processing needs within the specified terminal voltage range.

Part Context

This part belongs to the AD5110/AD5112/AD5114 family of single-channel digital potentiometers. While the AD5110 provides 128 positions and the AD5112 offers 64, the AD5114 is optimized for 32-position requirements. All variants share similar electrical characteristics, including ±8% resistor tolerance and nonvolatile storage capabilities.

Replacement Considerations

Direct substitutes within the same family include AD5110BCPZ10-RL7 (128 positions) and AD5112BCPZ10-RL7 (64 positions). Verify that the increased position count does not impact system timing or software address mapping.