AD5220BRM100-REEL7

Overview

The AD5220BRM100-REEL7 is a single-channel, 7-bit digital potentiometer IC manufactured by Analog Devices. It features a nominal resistance of 100 kΩ with 128 tap positions and a linear taper. The device utilizes a volatile UP/DOWN serial interface controlled via CLK, CS, and U/D pins. Operating within a supply voltage range of 2.7 V to 5.5 V, it draws a typical supply current of 15 µA at 5 V. The component is housed in an 8-lead Mini Small Outline Package (MSOP) and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• 100 kΩ nominal end-to-end resistance with 128 programmable wiper positions
• 7-bit resolution with linear taper characteristics
• Volatile memory retains settings only while powered; powers on to centered position
• 3-wire serial interface (CLK, CS, U/D) for wiper control

Applications

• Programmable gain amplifier circuits
• Voltage divider networks requiring digital adjustment
• Variable resistor applications in sensor signal conditioning

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official Ordering Guide to confirm package type and resistance value. Ensure compatibility with the required RoHS compliance status if applicable to the target assembly process. Confirm that the volatile nature of the wiper position aligns with system power-up requirements.

Selection Notes

Select this component when a 100 kΩ digital potentiometer with UP/DOWN control is required. Note that the wiper position resets to center upon power loss due to volatile storage. For non-volatile retention or different resistance values, consult other models in the AD5220 family such as the 10 kΩ or 50 kΩ variants.

Part Context

This part belongs to the AD5220 series of 256-position and 33-position digital potentiometers. The 'BRM' designation indicates an 8-lead MSOP package with a -40°C to +85°C operating range. The '100' suffix specifies the 100 kΩ nominal resistance. The '-REEL7' suffix denotes tape and reel packaging for automated assembly.

Replacement Considerations

Direct replacements within the same package include AD5220BRMZ100 (different branding code) or AD5220BR100 (SOIC package). Cross-package substitution requires PCB footprint modification.