The OPA404KPG4 is a quad Difet? high speed precision Operational Amplifier for use with detector arrays. It offers an unusual combination of very low bias current together with wide bandwidth and fast slew rate. Noise, bias current, voltage offset, drift and speed are superior to BIFET? amplifier. Laser-trimming of thin-film resistors gives very low offset and drift-the best available in a quad FET op amp. The OPA404's input cascade design allows high precision input specifications and uncompromised high speed performance. Standard quad op amp pin configuration allows upgrading of existing designs to higher performance levels. The OPA404 is unity-gain stable.