AD5110BCPZ10-RL7

Overview

The AD5110BCPZ10-RL7 is a single-channel, nonvolatile digital potentiometer featuring 128 adjustment positions and an I²C 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 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

• Single-channel, 128-position resolution with I²C-compatible digital interface
• Nonvolatile memory storing resistor tolerance with 0.1% end-to-end accuracy
• Low wiper resistance (typical 45 Ω) and high bandwidth (2 MHz at 10 kΩ)
• Wide operating temperature range from −40°C to +125°C

Applications

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

Procurement Notes

Verify the specific suffix 'RL7' corresponds to the reel packaging format as defined in the manufacturer's ordering guide. Confirm that the 'B' grade indicates the standard ±8% resistor tolerance variant. Ensure compatibility with the target system's I²C bus voltage levels and address configuration before integration.

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-tap resolution provides fine granularity. Consider the 2.3 V minimum supply voltage for battery-operated designs and verify that the ±6 mA wiper current meets the load requirements.

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 pinouts and I²C interfaces but differ in resolution and available resistance values.

Replacement Considerations

Direct functional substitutes within the same package and interface include the AD5112BCPZ10-RL7 (64-position) or AD5114BCPZ10-RL7 (32-position), provided lower resolution is acceptable. For up/down control without I²C, the AD5111 series may be considered if the interface changes are permissible.