AD5112BCPZ10-500R7

Overview

The AD5112BCPZ10-500R7 is a single-channel, nonvolatile digital potentiometer featuring 64 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 1.8 V logic levels. Key electrical parameters include a maximum continuous wiper current of ±6 mA, a bandwidth of 2 MHz at the 10 kΩ setting, and a typical power-on EEPROM refresh time under 50 μs. It is housed in an 8-lead LFCSP package.

Feature Summary

• Nonvolatile memory with 50-year retention and 1 million write cycles
• I²C-compatible serial interface for control and readback
• Low wiper resistance (typical 45 Ω) and ±6 mA current density
• End-to-end tolerance accuracy of 0.1% via stored resistor calibration data

Applications

• Mechanical potentiometer replacement
• Portable electronics level adjustment
• Audio volume control
• Low resolution DAC
• LCD panel brightness and contrast control

Procurement Notes

Verify the specific suffix '500' against the manufacturer's official ordering guide to confirm packaging details such as reel size or tape width. Confirm that the 'B' grade designation aligns with the required operating temperature range and performance specifications for the target application environment.

Selection Notes

Select this component when a 10 kΩ resistance value with 64 discrete steps is required. Ensure the system design accommodates the 2.3 V minimum analog supply voltage and 1.8 V minimum logic supply voltage. Verify that the I²C bus speed requirements are compatible with the standard (100 kHz) and fast (400 kHz) mode timing specifications.

Part Context

This part belongs to the AD5112 family within the AD5110/AD5112/AD5114 series. It shares the same 8-lead LFCSP package and core architecture as other variants but is distinguished by its 64-position resolution and 10 kΩ nominal resistance option.

Replacement Considerations

Direct functional replacements within the same family include the AD5112BCPZ5-500R7 (5 kΩ) and AD5112BCPZ80-500R7 (80 kΩ). These parts maintain identical pinouts, interfaces, and nonvolatile features while differing only in nominal resistance values.

FAQ

What is the power-on EEPROM restore time?

The power-on EEPROM refresh time is less than 50 μs.

How is the end-to-end tolerance accuracy achieved?

Resistor tolerance data is stored within the EEPROM, providing an end-to-end tolerance accuracy of 0.1%.

What is the maximum continuous current for the 10 kΩ version?

The maximum continuous current for the A, B, and W terminals is ±6 mA.