REF35180YBHR

Overview

The REF35180YBHR is a precision voltage reference IC from Texas Instruments, featuring an internal 1.8V output and ultra-low drift characteristics. It operates within a supply voltage range of 2.7V to 6V and delivers a maximum load current of 5mA. The device exhibits low initial accuracy with a maximum error of 0.05% at room temperature and minimal long-term drift of 2ppm over 1000 hours. Designed for high-precision applications, it offers excellent thermal stability across the industrial temperature range of -40°C to +125°C, ensuring reliable performance in demanding environments.

Feature Summary

• Ultra-low drift performance ensures stable reference voltage over time and temperature variations
• High initial accuracy minimizes calibration requirements in precision measurement systems
• Low noise density supports sensitive signal processing and data acquisition circuits
• Compact WSON package facilitates space-constrained PCB layouts

Applications

• Precision analog-to-digital converter (ADC) references
• Digital-to-analog converter (DAC) voltage sources
• High-resolution instrumentation amplifier references
• Medical equipment signal conditioning circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package marking matches official datasheet specifications. Check lot codes against traceability records. Ensure storage conditions comply with moisture sensitivity level requirements. Validate electrical parameters upon receipt using calibrated test equipment.

Selection Notes

Select this component when ultra-low drift and high accuracy are critical for system performance. Consider the 1.8V fixed output for compatibility with low-voltage ADCs and DACs. Evaluate power consumption constraints as the device draws minimal quiescent current. Assess thermal management needs given the wide operating temperature range. Compare alternative references based on noise specifications and package availability.

Part Context

The REF35180YBHR belongs to Texas Instruments' REF3xxx series of precision voltage references. This family targets applications requiring exceptional stability and accuracy. The YBHR suffix indicates specific binning for initial accuracy and packaging configuration. Related parts include other output voltages within the same series offering similar drift characteristics.

Replacement Considerations

Direct substitutes must match the 1.8V output, WSON-6 package, and comparable drift specifications. Verify pinout compatibility before substitution. Cross-reference accuracy classes and noise densities. Ensure thermal performance meets application requirements. Consult manufacturer documentation for approved replacement part numbers.