AM685HL

Overview

The AM685HL is a single-function bipolar voltage comparator manufactured by Advanced Micro Devices. It features an open-emitter ECL output mode and is housed in a TO-100-10 metal can package. The device operates within a temperature range of -55°C to +125°C. Key electrical specifications include a maximum input offset voltage of 2500 µV, a nominal negative supply voltage of -5.2 V, and a nominal supply voltage of 6 V. The maximum average bias current is 16 µA, with a typical output current of 30 mA.

Feature Summary

• Utilizes ECL-compatible open-emitter output architecture for high-speed signal comparison.
• Designed for operation across extended industrial temperature ranges from -55°C to +125°C.
• Constructed in a durable TO-100-10 metal can package suitable for rugged environments.

Applications

• High-speed digital logic interfacing
• Precision threshold detection circuits
• Military and aerospace instrumentation systems

Procurement Notes

Verify the specific manufacturer source, as components may be sourced from Advanced Micro Devices or Rochester Electronics. Confirm the exact offset voltage rating (2500 µV vs 3000 µV) and package integrity upon receipt. Ensure compatibility with existing ECL power supplies and thermal management requirements for the metal can form factor.

Selection Notes

Select this component when ECL interface compatibility is required alongside high-speed switching capabilities. The low offset voltage specification supports applications demanding precise voltage threshold determination. Consider the through-hole mounting requirement and metal can thermal properties during PCB layout design.

Part Context

This part belongs to the family of general-purpose comparators produced by Advanced Micro Devices. It serves as a discrete solution for analog-to-digital conversion stages where speed and reliability are critical. The TO-100-10 package indicates its suitability for hermetic sealing in specialized electronic assemblies.

Replacement Considerations

Cross-reference with other AMD ECL comparators in the TO-100-10 package. Verify pinout compatibility and electrical parameter alignment before substitution. Consult manufacturer documentation for updated equivalents if the original part status changes.