REF200AU

Current Regulation/Management Overview

The REF200AU is a dual current source and current sink integrated circuit manufactured by Texas Instruments. It provides two independent, stable output currents of 100µA each. The device operates within an input voltage range of 2.5V to 40V and maintains high accuracy with a tolerance of ±0.25%. It is designed for surface mount installation in an 8-SOIC package (0.154 inch width). The component supports an operating temperature range from -25°C to 85°C and complies with RoHS3 standards.

Current Regulation/Management Feature Summary

• Dual-channel architecture providing independent current source and current sink capabilities
• High precision current regulation with ±0.25% accuracy specification
• Wide supply voltage compatibility supporting operation from 2.5V up to 40V

Current Regulation/Management Applications

• Precision sensor biasing circuits requiring stable low-current sources
• Current mirror configurations in analog signal processing systems
• Calibration references for measurement instrumentation

Current Regulation/Management Procurement Notes

Verify the specific suffix designation when ordering, as it may indicate tape-and-reel packaging or lead-free composition variations. Confirm availability status directly with authorized distributors, as this component may be subject to obsolescence notices or limited stock conditions. Ensure the selected variant matches the required package type and environmental compliance specifications for your manufacturing process.

Current Regulation/Management Selection Notes

Select the REF200AU when precise, low-level DC current generation is required without external programming components. Consider the wide input voltage range for flexibility in power supply design. Evaluate the thermal performance within the specified -25°C to 85°C range against your application's environmental constraints. Verify that the 100µA output level meets the load requirements of your target circuit topology.

Current Regulation/Management Part Context

The REF200 series belongs to Texas Instruments' portfolio of precision current regulators. These devices are engineered for applications demanding high stability and low drift over temperature and time. The AU grade denotes a specific accuracy bin within the family. This component serves as a fundamental building block for creating reliable current references in mixed-signal environments where voltage references might introduce noise or complexity.

Current Regulation/Management Replacement Considerations

Direct substitutes include other parts from the REF200 family such as the REF200AU/2K5 or REF200AUE4, which share identical electrical characteristics but may differ in packaging format or lead finish. Cross-vendor replacements require careful verification of pinout compatibility, current accuracy, and operating voltage ranges to ensure functional equivalence.