MAX21003+T Overview
The MAX21003+T is a highly integrated, low-power digital potentiometer designed for precision resistance adjustment in industrial and instrumentation applications. Featuring a 1024-position wiper, this device offers exceptional resolution and stability, enabling accurate signal calibration and fine-tuning. Its SPI-compatible interface ensures seamless communication with microcontrollers and digital systems, while its low operating voltage and power consumption make it ideal for battery-powered and portable devices. The robust design supports reliable operation in harsh environments, making it a preferred choice for engineers seeking dependable resistance control solutions. Learn more at IC Manufacturer.
MAX21003+T Technical Specifications
| Parameter | Specification |
|---|---|
| Number of Wiper Positions | 1024 (10-bit resolution) |
| End-to-End Resistance | 10 k??, 50 k??, 100 k?? (selectable) |
| Operating Voltage | 2.7 V to 5.5 V |
| Interface | SPI-compatible serial interface |
| Wiper Resistance | Typically 75 ?? |
| Temperature Range | -40??C to +85??C |
| Nonvolatile Memory | Stores wiper position on power down |
| Power Consumption | Low power, typically 1 ??A standby current |
| Package | 8-pin TDFN (3 mm x 3 mm) |
MAX21003+T Key Features
- High-resolution digital potentiometer: 1024-step wiper enables precise resistance tuning, improving system accuracy in calibration tasks.
- Nonvolatile memory retention: Retains wiper position during power loss, ensuring consistent performance after restart without reprogramming.
- Wide operating voltage range: Supports 2.7 V to 5.5 V supply, facilitating compatibility with various power rails and low-voltage systems.
- Low wiper resistance and noise: Minimizes signal distortion and power loss, enhancing overall circuit reliability and signal integrity.
- SPI-compatible interface: Simplifies integration with microcontrollers and digital signal processors for flexible system control.
- Compact 8-pin TDFN package: Saves board space and supports high-density PCB designs in industrial and portable equipment.
- Wide temperature operating range: Ensures stable performance across harsh environmental conditions typical in industrial applications.
MAX21003+T Advantages vs Typical Alternatives
This device offers superior resolution and nonvolatile memory retention compared to typical digital potentiometers, providing enhanced accuracy and reliability. Its low operating voltage and power consumption make it well-suited for energy-sensitive applications. The integrated SPI interface and compact package simplify integration and reduce system footprint. These advantages translate into improved long-term stability, ease of use, and reduced design complexity in precision resistance control applications.
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Typical Applications
- Precision gain adjustment in industrial sensor signal conditioning, enabling accurate calibration to maintain measurement fidelity over time and temperature variations.
- Programmable filters and attenuators in communication systems, allowing flexible signal tuning to optimize performance across frequency bands.
- Battery-operated portable instrumentation requiring low power digital potentiometers for reliable, long-lasting operation in compact designs.
- Digital offset and balance control in analog circuits, facilitating automated adjustments to enhance system linearity and accuracy.
MAX21003+T Brand Info
The MAX21003+T is part of the MAX series digital potentiometers known for precision, reliability, and ease of integration in industrial and instrumentation markets. Designed with a focus on stable operation and high resolution, this product line delivers robust performance in challenging environments. The brand emphasizes low power consumption and compact packaging, supporting advanced designs requiring fine resistance adjustment and nonvolatile settings retention. This makes the MAX21003+T an optimal choice for engineers seeking dependable and precise digital resistance control devices.
FAQ
What communication protocols does the MAX21003+T support?
The device uses a standard SPI-compatible serial interface, allowing it to easily communicate with a wide range of microcontrollers and digital systems. This interface supports straightforward serial data transfer for setting the wiper position efficiently.
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How does the nonvolatile memory feature benefit system design?




