AD5110BCPZ10-1-RL7

Overview

The AD5110BCPZ10-1-RL7 is a single-channel, nonvolatile digital potentiometer featuring 128 adjustment positions and an I²C-compatible interface. It offers a nominal resistance of 10 kΩ with a maximum tolerance error of ±8%. The device operates on a single analog supply from 2.3 V to 5.5 V and supports logic supplies from 1.8 V to VDD. Key electrical characteristics include a wiper current of ±6 mA, a rheostat mode temperature coefficient of 35 ppm/°C, and a 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 with 1 million write cycles and 50-year data retention at 125°C
• I²C interface for wiper setting control and EEPROM readback
• Low wiper resistance (typical 45 Ω) and ±6 mA maximum wiper current density
• Resistor tolerance stored in EEPROM for 0.1% end-to-end accuracy

Applications

• Mechanical potentiometer replacement
• Audio volume control
• LCD panel brightness and contrast control
• Sensor calibration
• Programmable filters, delays, and time constants

Procurement Notes

Verify the specific suffix '-1' against official Analog Devices documentation to confirm if it denotes a unique tape-and-reel quantity or packaging variant, as standard datasheets may not explicitly define all ordering suffixes. Confirm availability through authorized distributors, as stock levels fluctuate. Ensure compliance with RoHS directives and check for any regional shipping restrictions prior to procurement.

Selection Notes

Select this component for applications requiring precise, nonvolatile resistance adjustment via a serial interface. The 10 kΩ value suits moderate impedance circuits, while the 128-position resolution provides fine control. Consider the 2.3 V minimum supply voltage for battery-powered designs. For higher resolution needs, evaluate the AD5112 (64-position) or AD5114 (32-position) variants within the same family.

Part Context

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

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD5110BCPZ80-1-RL7 (80 kΩ version). For different resolutions, the AD5112 series (64-position) and AD5114 series (32-position) are compatible in package and interface but offer fewer taps. Upgrading to these variants requires software adjustments to handle the reduced number of positions.