OPA637

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community OPA627, OPA637 SBOS165A – SEPTEMBER 2000 – REVISED OCTOBER 2015 OPA627 and OPA637 Precision High-Speed Difet® Operational Amplifiers 1 Features 1 Very Low Noise: 4.5 nV/√Hz at 10 kHz Fast Settling Time: – OPA627—550 ns to 0.01% – OPA637—450 ns to 0.01% Low VOS: 100-µV maximum Low Drift: 0.8-µV/°C maximum Low IB: 5-pA maximum OPA627: Unity-Gain Stable OPA637: Stable in Gain ≥ 5 2 Applications Precision Instrumentation Fast Data Acquisition DAC Output Amplifier Optoelectronics Sonar, Ultrasound High-Impedance Sensor Amps High-Performance Audio Circuitry Active Filters 3 Description The OPA6x7 Difet® operational amplifiers provide a new level of performance in a precision FET operational amplifier. When compared to the popular OPA111 operational amplifier, the OPA6x7 has lower noise, lower offset voltage, and higher speed. The OPA6x7 is useful in a broad range of precision and high speed analog circuitry. The OPA6x7 is fabricated on a high-speed, dielectrically-isolated complementary NPN/PNP process. It operates over a wide range of power supply voltage of ±4.5 V to ±18 V. Laser-trimmed Difet input circuitry provides high accuracy and lownoise performance comparable with the best bipolarinput operational amplifiers. High frequency complementary transistors allow increased circuit bandwidth, attaining dynamic performance not possible with previous precision FET...