The AD745JRZ-16 is an ultralow noise high-speed FET input Operational Amplifier offers both the ultralow voltage noise and high speed generally associated with bipolar input op amps and the very low input currents of FET input devices. Its 20MHz bandwidth and 12.5V/μs slew rate makes the AD745 an ideal amplifier for high-speed applications demanding low noise and high DC precision. Furthermore, the AD745 does not exhibit an output phase reversal. The AD745 also has excellent DC performance with 250pA maximum input bias current and 0.5mV maximum offset voltage. The internal compensation of the AD745 is optimized for higher gains, providing a much higher bandwidth and a faster slew rate. This makes the AD745 especially useful as a preamplifier where low level signals require an amplifier that provides both high amplification and wide bandwidth at these higher gains.