AD5175BCPZ-10-RL7

Overview

The AD5175BCPZ-10-RL7 is a single-channel, 1024-position digital rheostat from Analog Devices. It features a nominal resistance of 10 kΩ with a temperature coefficient of 35 ppm/°C and ±15% tolerance. The device operates on a single supply of 2.7 V to 5.5 V or dual supplies of ±2.5 V to ±2.75 V. It includes a 50-times programmable (50-TP) nonvolatile memory block for wiper position storage. Communication is handled via an I²C-compatible interface supporting standard (100 kHz) and fast (400 kHz) modes. The component is housed in a compact 10-lead LFCSP package measuring 3 mm × 3 mm.

Feature Summary

• 1024-position resolution with 10 kΩ nominal resistance
• 50-times programmable (50-TP) nonvolatile memory
• I²C-compatible serial interface with hardware write protection
• Dual-supply operation capability for bipolar signals

Applications

• Mechanical rheostat replacements
• Op-amp variable gain control
• Instrumentation gain and offset adjustment
• Programmable voltage to current conversions
• Sensor calibration

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with the required I²C address configuration based on the ADDR pin state. Confirm that the 1 μF external capacitor requirement for the EXT_CAP pin is included in the design for proper 50-TP memory programming.

Selection Notes

Select this component when a high-resolution digital rheostat with persistent memory settings is required. The 1024-tap resolution provides fine control compared to lower-resolution alternatives. Consider the dual-supply capability if bipolar signal handling is necessary. Ensure the PCB layout accommodates the 10-lead LFCSP package dimensions and thermal requirements.

Part Context

This part belongs to the AD5175 family of digital potentiometers. The 'BCPZ' designation indicates the 10-lead LFCSP package variant, while '-10' specifies the 10 kΩ resistance value. The '-RL7' suffix typically denotes a reel packaging format for surface-mount assembly. Other variants in the series include MSOP packages and different resistance values.

Replacement Considerations

Direct replacements within the same family include other AD5175 variants with different resistance values or packages. Cross-family replacements may require verification of I²C address compatibility and pinout alignment. Ensure any substitute supports the required 50-TP memory functionality and operating voltage range.