The THS4631DDA is a single high speed FET-input Operational Amplifier designed for applications requiring wideband operation, high-input impedance and high-power supply voltages. By providing a 210MHz gain bandwidth product, ±15V supply operation and 100pA input bias current. The THS4631 is capable of simultaneous wideband transimpedance gain and large output signal swing. The fast 1000V/μs slew rate allows for fast settling times and good harmonic distortion at high frequencies. Low current and voltage noise allow amplification of extremely low-level input signals while still maintaining a large signal-to-noise ratio. The characteristics of the THS4631 make it ideally suited for use as a wideband photodiode amplifier.