文档介绍：FEATURES ? LOW DISTORTION: % at 1kHz ? LOW NOISE: 10nV/ √ Hz ? HIGH SLEW RATE: 25V/ μ s ? WIDE GAIN-BANDWIDTH: 20MHz ? UNITY-GAIN STABLE ? WIDE SUPPLY RANGE: V S = ± to ± 24V ? DRIVES 600 ? LOAD ? DUAL VERSION AVAILABLE (OPA2604) FET-Input, Low Distortion OPERATIONAL AMPLIFIER APPLICATIONS ? PROFESSIONAL AUDIO EQUIPMENT ? PCM DAC I/V CONVERTERS ? SPECTRAL ANALYSIS EQUIPMENT ? ACTIVE FILTERS ? TRANSDUCER AMPLIFIERS ? DATA ACQUISITION OPA604 DESCRIPTION The OPA604 is a FET-input operational amplifier designed for enhanced AC performance. Very low distortion, low noise and wide bandwidth provide superior performance in high quality audio and other applications requiring excellent dy- namic performance. New circuit techniques and special laser trimming of dynamic circuit performance yield very low harmonic distortion. The result is an op amp with exceptional sound quality. The low- noise FET input of the OPA604 provides wide dynamic range, even with high source impedance. Offset voltage is laser-trimmed to minimize the need for interstage coupling capacitors. The OPA604 is available in 8-pin plastic mini-DIP and SO-8 surface-mount packages, specified for the –25 ° C to +85 ° C temperature range. Distortion Rejection Circuitry (3) (+) (2) ( –) (7) V+ (6) V O (4) V – Output Stage NOTE: (1) Patents Granted: #5053718, 5019789 (5) (1) O P A 6 0 4 SBOS019A – JANUARY 1992 – SEPTEMBER 2003 yright ? 1992-2003, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. OPA604 2 SBOS019A OLUTE MAXIMUM RATINGS Power Supply Voltage ....................................................................... ± 25V Input Voltage ............................................................... (V –) – 1V to (V+)+1V Output