AD5263BRU20

Digital Potentiometers Overview

The AD5263BRU20 is a quad-channel, 256-position digital potentiometer with a nominal end-to-end resistance of 20 kΩ. It features pin-selectable SPI or I²C interfaces and operates from a single supply of +4.5 V to +16.5 V or dual supplies of ±4.5 V to ±7.5 V. The device includes two programmable logic outputs in I²C mode and powers on to a midscale preset. It is housed in a 24-lead TSSOP package and supports an operating temperature range of –40°C to +125°C.

Digital Potentiometers Feature Summary

• Quad-channel architecture with 256 tap positions per channel
• Pin-selectable 3-wire SPI or 2-wire I²C serial interface
• Two additional programmable digital output pins (O1, O2) in I²C mode
• Power-on wiper preset to midscale position

Digital Potentiometers Applications

• Mechanical potentiometer replacement
• Instrumentation gain and offset adjustment
• Stereo channel audio level control
• Programmable filters and time constants
• Sensor calibration

Digital Potentiometers Procurement Notes

Verify the specific suffix for the 20 kΩ variant when ordering, as the base model number covers multiple resistance values. Confirm the required packaging format, such as tube or reel, matches the production line requirements. Ensure the logic supply voltage (VL) is compatible with the system's digital levels, as it must be less than or equal to VDD.

Digital Potentiometers Selection Notes

Select this component for applications requiring four independent variable resistors controlled via standard serial buses. The 20 kΩ value is suitable for moderate impedance circuits; higher resistance options are available if lower current draw is needed. Consider the thermal resistance of the TSSOP-24 package for power dissipation calculations under continuous operation at high temperatures.

Digital Potentiometers Part Context

This part belongs to the AD5263 family of quad digital potentiometers. Analog Devices offers similar devices with different channel counts, such as the single-channel AD5260 and dual-channel AD5262, which share the same interface and operational characteristics but differ in pin count and channel density.

Digital Potentiometers Replacement Considerations

Direct substitutes include other AD5263 variants with different resistance values (e.g., AD5263BRU50 for 50 kΩ or AD5263BRU200 for 200 kΩ). For single-channel needs, the AD5260 series may be used if pin compatibility allows. Verify that any replacement maintains the same 256-position resolution and interface type.