AD5282BRUZ200

Digital Potentiometers Overview

The AD5282BRUZ200 is a dual-channel, 256-position digital potentiometer from Analog Devices. It features a fixed terminal resistance of 200 kΩ with a nominal temperature coefficient of 30 ppm/°C and a tolerance of ±30%. The device operates on a single supply of +4.5 V to +16.5 V or a dual supply of ±4.5 V to ±5.5 V. It utilizes an I²C-compatible interface for programming the wiper position, which defaults to midscale at power-on. The component is housed in a 16-lead TSSOP package and supports an operating temperature range of −40°C to +85°C.

Digital Potentiometers Feature Summary

• Dual-channel configuration with 256 programmable tap positions per channel.
• I²C-compatible serial interface for digital control and readback.
• Power-on midscale preset simplifies system initialization.
• Operates with single (+15 V) or dual (±5 V) power supplies.

Digital Potentiometers Applications

• Multimedia, video, and audio signal processing
• Instrumentation gain and offset adjustment
• Programmable voltage and current sources
• Mechanical potentiometer replacement

Digital Potentiometers Procurement Notes

Verify the specific suffix '200' confirms the 200 kΩ resistance value. Confirm the 'BRU' designation indicates the industrial temperature grade and TSSOP-16 packaging. Ensure the logic supply voltage (VL) matches the controlling microcontroller's I/O levels for proper I²C communication.

Digital Potentiometers Selection Notes

Select this model over the AD5280 if two independent channels are required. Choose the 200 kΩ variant when higher impedance is needed to minimize power consumption compared to the 20 kΩ or 50 kΩ options. Verify that the volatile memory type meets the application's requirement for resetting to midscale upon power-up.

Digital Potentiometers Part Context

This part belongs to the AD5280/AD5282 family of digitally controlled variable resistors. It serves as the dual-channel counterpart to the single-channel AD5280. Both share identical electrical characteristics, including bandwidth and linearity specifications, differing primarily in the number of integrated potentiometers within the single IC package.

Digital Potentiometers Replacement Considerations

Direct functional substitutes include other dual-channel I²C digital potentiometers from Analog Devices such as the AD5242 series, though these typically operate at lower voltages (up to 5.5 V). For high-voltage applications requiring dual channels, no direct pin-for-pin replacement exists in the same family; redesign may be necessary.