AD5235BRUZ250

Digital Potentiometers Overview

The AD5235BRUZ250 is a dual-channel, nonvolatile memory digital potentiometer with 1024-step resolution and a nominal resistance of 250 kΩ. It operates on a single supply from 2.7 V to 5.5 V or a dual supply of ±2.5 V. The device features an SPI-compatible serial interface for programming wiper settings, which are stored in EEMEM and restored upon power-on. Key electrical parameters include a maximum resistor tolerance of ±8%, a temperature coefficient of 35 ppm/°C, and a typical positive supply current of 2 µA. It includes 26 bytes of extra user-defined nonvolatile memory.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 1024-position resolution per channel
• Nonvolatile EEMEM storage for wiper settings and 26 bytes of user data
• SPI-compatible serial interface supporting daisy-chain operation
• Permanent memory write protection via WP pin

Digital Potentiometers Applications

• DWDM laser diode driver and optical supervisory systems
• Mechanical potentiometer replacement in instrumentation
• Programmable gain and offset adjustment circuits
• Sensor calibration and programmable voltage-to-current conversion

Digital Potentiometers Procurement Notes

Verify the specific suffix 'R7' against the official ordering guide if tape-and-reel packaging is required, as standard availability may vary by distributor. Confirm RoHS compliance status through the manufacturer's latest documentation before integration into production designs.

Digital Potentiometers Selection Notes

Select this component when a dual-channel digital solution with high resolution (10-bit) and nonvolatile retention is necessary. Ensure the system voltage falls within the 2.7 V to 5.5 V range. Consider the 250 kΩ nominal resistance value against load requirements and bandwidth needs, noting the -3 dB bandwidth is approximately 12 kHz at this resistance.

Digital Potentiometers Part Context

This part belongs to the AD5235 family of nonvolatile digital potentiometers. It shares functional similarities with other ADI RDACs but is distinct in its dual-channel configuration and specific 250 kΩ resistance value. The BRUZ package designation indicates a TSSOP-16 surface-mount housing suitable for industrial temperature ranges.

Digital Potentiometers Replacement Considerations

Direct replacements must match the dual-channel, 1024-position, and 250 kΩ specifications. Verify pin compatibility with the 16-lead TSSOP package. Check if alternative parts support the same SPI command set and EEMEM restoration features to ensure seamless software migration.