REF35102YBHR

Overview

The REF35102YBHR is a fixed-output voltage reference IC from the Texas Instruments REF35 series, providing a precise output of 1.024V with an initial accuracy of ±0.05%. It operates within an input voltage range of 1.274V to 6V and features ultra-low quiescent current, typically 650nA, with a maximum supply current of 2.6µA. The device exhibits a temperature coefficient of 12ppm/°C and functions across an extended operating temperature range of -40°C to 125°C. Packaged in a compact 4-DSBGA (4-XFBGA) surface-mount format, it is designed for high-precision applications requiring minimal power consumption.

Feature Summary

• Ultra-low quiescent current consumption for battery-powered efficiency
• High initial accuracy of ±0.05% for precision measurement stability
• Low temperature coefficient ensuring stable output over wide thermal ranges
• Compact 4-pin DSBGA package suitable for space-constrained designs

Applications

• Portable medical instrumentation
• Battery-operated data acquisition systems
• Precision analog-to-digital converter references
• Industrial process control sensors

Procurement Notes

Verify the specific suffix YBHR corresponds to the 4-DSBGA package and tape-and-reel quantity when ordering. Confirm that the 1.024V fixed output aligns with your system's reference requirements. Ensure compatibility with the specified 1.274V minimum input voltage for proper regulation under all load conditions.

Selection Notes

Select this component when low power consumption is critical alongside high DC accuracy. The 1.024V output is ideal for driving ADCs with bipolar input ranges or as a reference for sensor excitation. Consider the small footprint if board real estate is limited, but ensure adequate thermal management for operation up to 125°C ambient temperature.

Part Context

This part belongs to the REF35 family of ultra-low-power, high-precision voltage references. The series offers various fixed output voltages and accuracies, catering to applications demanding stability and low energy usage. The REF35102 variant specifically provides the 1.024V output level, distinguishing it from other members like the REF3525 or REF3550 which offer different reference levels.

Replacement Considerations

Check for direct pin-compatible alternatives within the REF35 family such as REF35102DBVR or REF35102DBVT if package availability differs. Verify that substitute parts maintain the same ±0.05% initial accuracy and 12ppm/°C temperature coefficient to ensure circuit performance remains unchanged.