OPA604AP vs OPA604APG4 vs AD711KNZ Comparison

The OPA604AP is a FET-input Operational Amplifier IC, 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 dynamic 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.

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0.0003% at 1kHz Low Distortion

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10nV/Hz Low Noise

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25V/µs High Slew Rate

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Unity-gain Stable

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Drives 600 Load

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Dual Version Available

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Green Product, No Sb/Br

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. FEATURES ● LOW DISTORTION: 0.0003% at 1kHz ● LOW NOISE: 10nV/√Hz ● HIGH SLEW RATE: 25V/µs ● WIDE GAIN-BANDWIDTH: 20MHz ● UNITY-GAIN STABLE ● WIDE SUPPLY RANGE: V S = ±4.5 to ±24V ● DRIVES 600Ω LOAD ● DUAL VERSION AVAILABLE (OPA2604) APPLICATIONS ● PROFESSIONAL AUDIO EQUIPMENT ● PCM DAC I/V CONVERTERS ● SPECTRAL ANALYSIS EQUIPMENT ● ACTIVE FILTERS ● TRANSDUCER AMPLIFIERS ● DATA ACQUISITION

The AD711KNZ is a high speed BiFET Operational Amplifier offering high performance at very modest prices. Its very low offset voltage and offset voltage drift are the results of advanced laser wafer trimming technology. These performance benefits allow the user to easily upgrade existing designs that use older precision BiFETs and, in many cases, bipolar op amps. The superior AC and DC performance of op amp makes it suitable for active filter applications.

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Enhanced replacement for the LF411 and TL081