AD5200BRM10

Overview

The AD5200BRM10 is a single-channel, 8-bit digital potentiometer with 256 tap positions and a nominal resistance of 10 kΩ. It operates on a single supply from 2.7 V to 5.5 V or dual supplies up to ±2.7 V. The device uses a 3-wire SPI-compatible serial interface for control and features volatile memory that retains settings only when powered. Key electrical characteristics include a wiper resistance of 50 Ω to 100 Ω, a temperature coefficient of 500 ppm/°C, and a shutdown current of less than 5 µA. It is housed in a compact 10-lead MSOP package.

Feature Summary

• 256-position resolution with linear taper
• 3-Wire SPI-compatible serial interface
• Internal power-on midscale preset
• Shutdown mode with microwatt power consumption

Applications

• Mechanical potentiometer replacement
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion
• Line impedance matching

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm resistance value and packaging type. Ensure compatibility with the system's serial clock speeds and logic voltage levels before integration.

Selection Notes

Select this component for applications requiring precise digital control of resistance values within a 10 kΩ range. Consider the 500 ppm/°C temperature coefficient for thermal stability requirements. Verify that the volatile memory architecture aligns with the system's power cycling behavior.

Part Context

This part belongs to the AD5200/AD5201 family of programmable resistor devices. The AD5200 variant specifically provides 256 positions, whereas the AD5201 offers 33 positions. Both share identical pinouts and interface protocols but differ in resolution and internal decoding logic.

Replacement Considerations

Direct replacements within the same family include the AD5200BRMZ10 (tube packaging) or AD5200BRMZ50 (50 kΩ resistance). Cross-family substitutes like the AD5241 offer I2C interfaces but require interface adaptation.