AD5114BCPZ80-500R7

Overview

The AD5114BCPZ80-500R7 is a single-channel, nonvolatile digital potentiometer featuring 32 tap positions and an I²C-compatible interface. It offers a nominal resistance of 80 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 VDD. Key electrical parameters include a maximum wiper current of ±1.5 mA, a bandwidth of 200 kHz at half-scale code, and a typical power-on EEPROM refresh time under 50 μs. It is housed in a compact 2 mm × 2 mm × 0.55 mm 8-lead LFCSP package.

Feature Summary

• Nonvolatile memory retains settings for up to 50 years with 1 million write cycles.
• I²C serial interface allows control, readback of the RDAC register, and EEPROM content verification.
• Low wiper resistance minimizes error at array extremes, typically 45 Ω.
• Resistor tolerance data is stored in EEPROM to provide end-to-end accuracy of 0.1%.

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 the exact resistance value (10 kΩ or 80 kΩ) and packaging configuration. Ensure that the selected variant matches the required tape-and-reel specifications for automated assembly processes.

Selection Notes

Select this component when a low-profile, nonvolatile solution is required for applications needing 32 discrete resistance steps. The 80 kΩ option is suitable for lower current applications requiring ±1.5 mA wiper capability. Verify that the system voltage accommodates the 2.3 V minimum analog supply and that the I²C bus timing meets standard or fast mode requirements.

Part Context

This part belongs to the AD511x family of single-channel digital potentiometers. While sharing the same LFCSP-8 package and I²C interface, it differs from the AD5110 (128 positions) and AD5112 (64 positions) by offering only 32 taps. This reduction in resolution simplifies open-loop applications while maintaining the nonvolatile storage and low power consumption characteristics of the series.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD5110BCPZ80-500R7 and AD5112BCPZ80-500R7. Note that these alternatives offer higher resolution (128 and 64 positions, respectively). If the application strictly requires 32 positions, no direct substitute exists within this specific datasheet family; alternative interfaces such as Up/Down (AD5115) or Push-button (AD5116) may require software or hardware adaptation.