AD5206BRU100

Overview

The AD5206BRU100 is a six-channel, 256-position digitally controlled variable resistor manufactured by Analog Devices Inc. It operates on a single +2.7 V to +5.5 V supply or ±2.7 V dual supplies. The device features a fixed A-to-B terminal resistance of 100 kΩ with a nominal temperature coefficient of 700 ppm/°C. Each channel includes an independent VR latch updated via a 3-wire SPI-compatible serial interface. The unit utilizes a 24-lead TSSOP package and guarantees operation across the extended industrial temperature range of −40°C to +85°C.

Feature Summary

• Six independently programmable channels with 256 positions each
• Fixed terminal resistance of 100 kΩ with 700 ppm/°C temperature coefficient
• 3-wire SPI-compatible serial data input for digital control
• +2.7 V to +5.5 V single-supply or ±2.7 V dual-supply operation

Applications

• Mechanical potentiometer replacement
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion
• Programmable filters, delays, and time constants
• Line impedance matching

Procurement Notes

Verify the specific ordering suffix RU against the manufacturer's current documentation to confirm the package type and tape-and-reel configuration. Ensure that the required terminal resistance matches the BRU100 designation. Confirm compliance with RoHS standards and check for any recent product change notices affecting availability or specifications.

Selection Notes

Select this component when six independent digital potentiometer channels are required within a compact surface-mount footprint. The 100 kΩ resistance value suits applications requiring higher impedance levels compared to the 10 kΩ variant. Verify that the system logic levels align with the specified input thresholds at the operating supply voltage. Consider the thermal resistance characteristics if multiple channels are actively driven simultaneously.

Part Context

This part belongs to the AD5204/AD5206 family of 4- and 6-channel digital potentiometers. While the AD5204 offers four channels and includes a serial data output (SDO) for daisy-chaining, the AD5206 provides six channels without the SDO pin. Both share identical electrical characteristics, interface protocols, and power supply requirements, differing primarily in channel count and pinout assignments.

Replacement Considerations

Direct substitutes include other parts from the AD5204/AD5206 family with matching resistance values and packages. Cross-model replacements must account for the difference in channel count between the AD5204 and AD5206. Verify pin compatibility, particularly regarding the absence of the SDO pin on the AD5206 compared to the AD5204.