LM185BYH-2.5

Overview

The LM185BYH-2.5 is a micro-power two-terminal bandgap voltage reference manufactured by Texas Instruments. It provides a nominal output voltage of 2.5 V with an initial accuracy of ±1.5%. The device operates within a wide current range from 20 μA to 20 mA and features a maximum temperature coefficient of 30 ppm/°C. It is housed in a TO-46 metal can package designed for through-hole mounting. The component supports an operating temperature range from -55°C to +125°C, ensuring stability in demanding environments.

Feature Summary

• Provides stable 2.5 V reference via two-terminal bandgap technology
• Features low dynamic impedance for improved regulation
• Designed for high tolerance against capacitive loads
• Supports extended industrial and military temperature ranges

Applications

• Precision analog-to-digital converter references
• Battery-powered portable instrumentation
• Temperature measurement circuits
• Precision current sources

Procurement Notes

Verify the specific suffix 'BYH' against the manufacturer's official datasheet to confirm pinout compatibility and exact electrical tolerances. Ensure the procurement channel supplies components that meet the required RoHS or lead-free specifications if mandated by the design. Confirm the package type matches the intended PCB footprint before finalizing orders.

Selection Notes

Select this component when a stable 2.5 V reference is required in harsh thermal environments. The TO-46 package offers robustness suitable for rugged applications. Consider the 30 ppm/°C temperature coefficient for precision requirements. Verify that the load current remains within the specified 20 μA to 20 mA range for optimal performance.

Part Context

This part belongs to the LM185 series of micro-power voltage references. The series utilizes bandgap technology to achieve low noise and long-term stability. The LM185 variant is distinguished by its extended temperature range compared to commercial counterparts. It serves as a foundational reference element in precision power management and signal conditioning circuits.

Replacement Considerations

LM185BH/NOPB

FAQ

What is the typical dynamic impedance of the LM185BYH-2.5?

The device exhibits very low dynamic impedance, which contributes to its excellent voltage regulation capabilities under varying load conditions.

Is the LM185BYH-2.5 sensitive to capacitive loads?

No, the device is specifically designed to be highly tolerant of capacitive loads, making it easy to use in various reference applications without additional compensation.