AD5174BCPZ-10-RL7

Overview

The AD5174BCPZ-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 for wiper position storage and utilizes an SPI-compatible serial interface. The component is housed in a compact 10-lead LFCSP package and supports an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Single-channel, 1024-position resolution with 10 kΩ nominal resistance
• 50-times programmable (50-TP) nonvolatile memory for permanent wiper setting storage
• SPI-compatible serial interface supporting readback and daisy-chain operations
• Dual-supply operation capability for ac or bipolar signal adjustment

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 current documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements, as the device supports both single and dual supply configurations. Confirm that the design accounts for the required external capacitor on the EXT_CAP pin for memory programming operations.

Selection Notes

Select this component when a single-channel digital rheostat with high resolution and nonvolatile memory is required. The 1024-position resolution allows for precise analog signal tuning. Consider the dual-supply capability if bipolar signal handling is necessary. Verify that the SPI interface timing parameters align with the host controller's capabilities, particularly regarding the SYNC frame synchronization requirements.

Part Context

This part belongs to the AD5174 family of digital rheostats. The 'BCPZ' designation indicates the specific grade and LFCSP package variant. The '-10' suffix denotes the 10 kΩ nominal resistance value. The '-RL7' suffix typically refers to the reel packaging format used for surface-mount assembly.

Replacement Considerations

Direct substitutes within the same family include the AD5174BRMZ-10-RL7, which offers the same electrical specifications but utilizes a 10-lead MSOP package instead of the LFCSP form factor.