The LM6125 family of high speed unity gain buffers slew at 800 V/s and have a small signal bandwidth of 50 MHz while driving a 50 load. These buffers drive 300 mA peak and do not oscillate while driving large capacitive loads. The LM6125 contains unique features not found in power buffers; these include current limit, thermal shutdown, electronic shutdown, and an error flag that warns of fault conditions. These buffers are built with National's VIPTM (Vertically Integrated PNP) process which provides fast PNP transistors that are true complements to the already fast NPN devices. This advanced junction-isolated process delivers high speed performance without the need for complex and expensive dielectric isolation.