The National Semiconductor LH4009 is a very high-speed, FET input voltage follower designed to provide high current drive at frequencies from DC to over 190 MHz. It is intended for a wide range of buffer applications, including high-speed line drivers, video impedance transformation, and op amp isolation buffers. The device exhibits excellent phase linearity and can continuously drive 500 coaxial cables with a single +10V supply.
| Output Current | +200 mA |
|---|---|
| Bandwidth | 190 MHz |
| Operating Temperature (LH4009) | -55°C to +125°C |
| Operating Temperature (LH4009C) | -25°C to +85°C |
| Input Capacitance | 10 pF |
The LH4009 can provide +200 mA into 50 ohm loads.
The device operates at frequencies from DC to over 190 MHz.
The LH4009 operates from -55°C to +125°C, while the LH4009C operates from -25°C to +85°C.
Yes, it features built-in short circuit protection for up to 30 seconds.