AD8400ARZ10-REEL

Overview

The AD8400ARZ10-REEL is a single-channel, 256-position digital potentiometer from Analog Devices. It features a nominal resistance of 10 kΩ with a linear taper and ±20% tolerance. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V. It utilizes a 3-wire SPI-compatible serial interface for data input, supporting clock rates up to 10 MHz. Key electrical parameters include a typical supply current of 5 μA in CMOS mode and a shutdown current of less than 5 μA. The unit is housed in an SOIC-8 surface-mount package and is rated for operation over an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Single-channel variable resistor with 256 tap positions and 10 kΩ nominal resistance
• SPI-compatible 3-wire serial interface with 10 MHz update rate
• Power shutdown mode reduces current consumption to less than 5 μA
• Extended industrial temperature range from −40°C to +125°C

Applications

• Mechanical potentiometer replacement
• Programmable filters, delays, and time constants
• Volume control and panning
• Line impedance matching
• Power supply adjustment

Procurement Notes

Verify the component status as the provided source material indicates potential end-of-life or obsolescence warnings. Confirm RoHS compliance details through official manufacturer documentation prior to procurement. Ensure the specific REEL packaging variant matches the required manufacturing process specifications.

Selection Notes

Select this component for applications requiring a single digitally controlled variable resistor. The 10 kΩ value suits moderate impedance circuits. Verify that the system logic levels are compatible with the 2.7 V to 5.5 V operating range. Consider the SOIC-8 package dimensions for PCB layout constraints.

Part Context

This part belongs to the AD8400/AD8402/AD8403 family of digital potentiometers. While the AD8402 offers dual channels and the AD8403 provides four channels, the AD8400 specifically integrates a single variable resistor. All variants share similar electrical characteristics and serial interface protocols but differ in pin counts and channel density.

Replacement Considerations

Direct functional substitutes within the same family include the AD8402ARZ10 (dual channel) and AD8403ARZ10 (quad channel), though these require different footprints. Other series may offer similar resistance values but will likely differ in interface protocols or channel configurations.