AD5206BRZ100

Overview

The AD5206BRZ100 is a six-channel, 256-position digitally controlled variable resistor from Analog Devices. It features a fixed A-to-B terminal resistance of 100 kΩ with a nominal temperature coefficient of 700 ppm/°C. The device operates on a single supply of +2.7 V to +5.5 V or dual supplies of ±2.3 V to ±2.7 V. Each channel includes an independent VR latch updated via a 3-wire SPI-compatible serial interface. Key electrical parameters include a typical wiper resistance of 100 Ω at 5 V and a bandwidth of 69 kHz for the 100 kΩ configuration.

Feature Summary

• Six independently programmable channels with 256 positions each
• 100 kΩ nominal end-to-end resistance with 700 ppm/°C temperature coefficient
• 3-wire SPI-compatible serial data input (CS, CLK, SDI)
• +2.7 V to +5.5 V single-supply or ±2.3 V to ±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 against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Confirm that the 100 kΩ resistance variant matches the system requirements, as the AD5206 family also offers 10 kΩ and 50 kΩ options. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS inputs.

Selection Notes

Select this component when six independent digital potentiometer channels are required in a single package. The 100 kΩ value is suitable for high-impedance signal paths where lower current consumption is prioritized over bandwidth. Verify that the 69 kHz bandwidth meets the application's frequency requirements, as higher resistance values result in reduced bandwidth compared to the 10 kΩ variant.

Part Context

The AD5206 is part of the AD5204/AD5206 family of 4-/6-channel digital potentiometers. While the AD5204 provides four channels, the AD5206 extends this to six channels within the same 24-lead SOIC/TSSOP footprint. Both devices share identical control interfaces, power supply ranges, and general performance characteristics, differing primarily in channel count and address decoding logic.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD5206BRZ10 and AD5206BRZ50 for different resistance values. For applications requiring fewer channels, the AD5204 series may be used if pin assignments allow. Cross-family alternatives like the AD840x series offer different channel counts but require verification of interface compatibility and pinout mapping.