LM285AM-2.5

Overview

The LM285AM-2.5 is a micropower voltage reference diode manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 2.5 V with a typical tolerance of 1.5%. The device operates within an ambient temperature range of 0°C to 70°C and draws a typical quiescent current of 0.015 mA. It is housed in an SOIC-8 package.

Feature Summary

• Provides a stable fixed voltage reference output
• Designed for micropower applications with low current consumption
• Available in surface-mount packaging

Applications

• Portable battery-powered equipment
• Data acquisition systems
• Microprocessor-supervisory circuits

Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments, as product lines were integrated. Confirm the specific suffix 'AM' corresponds to the correct package type and temperature grade. Ensure compliance with RoHS standards if required for the application. Cross-reference datasheets from both original and successor manufacturers for accurate electrical specifications.

Selection Notes

Select this component when a precise 2.5 V reference is needed with minimal power draw. Consider the operating temperature range limits for industrial environments. Evaluate the tolerance requirements against the standard 1.5% specification. Compare with other series members like the LM385 for different voltage options or tighter tolerances.

Part Context

This device belongs to the LM285 family of micropower voltage references. The family includes variants with different fixed output voltages such as 1.25 V and 2.5 V. These components are widely used in analog circuits requiring a reliable voltage baseline without significant power overhead.

Replacement Considerations

Compatible substitutes include the LM385-2.5 and LM2990 series components. Verify pinout compatibility and thermal characteristics before substitution. Check for updated datasheets from Texas Instruments to ensure equivalent performance metrics.