BUF634T

Overview

The BUF634T is a high-speed buffer amplifier manufactured by Texas Instruments, housed in a TO-220 package with five pins. It features a gain-bandwidth product of 180 MHz and a slew rate of 2000 V/µs. The device supports a supply voltage range from 2.25 V to 18 V and delivers an output current of 250 mA. Operating temperatures span from -40°C to +125°C, with input bias current at 20 µA and input offset voltage at 100 mV.

Feature Summary

• Provides high-speed buffering capabilities with significant output drive strength for demanding applications.
• Features internal current limiting and thermal shutdown protection for robust operation under fault conditions.
• Designed for through-hole mounting in industrial environments requiring extended temperature stability.

Applications

• Video driver circuits
• Line drivers
• Capacitive load drivers

Procurement Notes

Verify the specific suffix 'T' corresponds to the TO-220 package variant when sourcing. Confirm that the required operating voltage does not exceed the maximum rating of 18 V. Ensure the application environment remains within the specified -40°C to +125°C temperature range for reliable performance.

Selection Notes

Select this component when a through-hole solution is required for high-current buffering tasks. The TO-220 package facilitates heat dissipation during high-output current operations. Consider the 180 MHz bandwidth and 250 mA drive capability against system signal speed and load requirements.

Part Context

This part belongs to the BUF634 series of high-speed buffer amplifiers. It serves as a ruggedized version suitable for industrial settings. The TO-220 form factor distinguishes it from surface-mount variants like the SOIC or DIP packages found in the same family.

Replacement Considerations

Consult official substitution tables for upgraded versions such as the BUF634A. Verify pin compatibility and electrical parameter alignment before replacing existing designs with newer family members.