KH205

www.fairchildsemi.com KH205 Overdrive-Protected Wideband Op Amp Features s s s s s s s General Description The KH205 is a wideband overdrive-protected operational amplifier designed for applications needing both speed and low power operation. Utilizing a well-established current feedback architecture, the KH205 exhibits performance far beyond that of conventional voltage feedback op amps. For example, the KH205 has a bandwidth of 170MHz at a gain of +20 and settles to 0.1% in 22ns. Plus, the KH205 has a combination of important features not found in other high-speed op amps. For example, the KH205 has been designed to consume little power – 570mW at ±15V supplies. The result is lower power supply requirements and less systemlevel heat dissipation. In addition, the device can be operated on supply voltages as low as ±5V for even lower power dissipation. Complete overdrive protection has been designed into the part. This is critical for applications, such as ATE and instrumentation, which require protection from signal levels high enough to cause saturation of the amplifier. This feature allows the output of the op amp to be protected against short circuits using techniques developed for low-speed op amps. With this capability, even the fastest signal sources can feature effective short circuit protection. The KH205 is constructed using thin film resistor/bipolar transistor technology, and is available in the following versions: KH205AI KH205AK Supply Voltage -VCC 10 -3dB ba...