AD5206BRZ50

Overview

The AD5206BRZ50 is a six-channel, 256-position digitally controlled variable resistor from Analog Devices. It features a 3-wire SPI-compatible serial interface for independent channel programming. The device operates on a single supply of +2.7 V to +5.5 V or dual supplies of ±2.7 V. It includes a power-on midscale preset and supports daisy-chaining via an SDO pin. The nominal terminal resistance is 50 kΩ with a temperature coefficient of 700 ppm/°C. It is housed in a 24-lead TSSOP package and functions over an industrial temperature range of −40°C to +85°C.

Feature Summary

• Six independently programmable channels with 256 positions each
• 3-wire SPI-compatible serial interface with daisy-chain capability
• Power-on midscale preset for fault recovery
• Operates on +2.7 V to +5.5 V single supply or ±2.7 V dual supply

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 suffix 'BRZ50' against the manufacturer's current ordering guide to confirm package type (TSSOP) and resistance value (50 kΩ). Check for obsolescence status as older variants may be discontinued. Ensure ESD precautions are followed during handling due to sensitivity ratings.

Selection Notes

Select this component when six independent digital potentiometer channels are required within a single package. The 50 kΩ resistance value suits applications requiring moderate current handling compared to lower resistance options. Verify that the system logic levels are compatible with the 3-wire SPI interface and that the operating voltage falls within the specified 2.7 V to 5.5 V range.

Part Context

This part belongs to the AD5204/AD5206 family of 4-/6-channel digital potentiometers. The AD5206 variant specifically provides six channels, whereas the AD5204 provides four. Both share identical electrical characteristics, interface protocols, and package options, differing primarily in channel count and pinout configuration for the additional channels.

Replacement Considerations

Direct functional substitutes include other 6-channel digital potentiometers from Analog Devices such as the AD840x series, though channel counts and interfaces may vary. Cross-referencing with the manufacturer's latest data sheet is recommended to identify any updated or equivalent parts if the original model is discontinued.