The LMH6321 is a high speed unity gain buffer that slews at1800 V/μs and has a small signal bandwidth of 110 MHz whiledriving a 50Ω load. It can drive ±300 mA continuously and willnot oscillate while driving large capacitive loads.The LMH6321 features an adjustable current limit. The currentlimit is continuously adjustable from 10 mA to 300 mawith a ±5 mA ±5% accuracy. The current limit is set by adjustingan external reference current with a resistor. Thecurrent can be easily and instantly adjusted, as needed byconnecting the resistor to a DAC to form the reference current.The sourcing and sinking currents share the same currentlimit.