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: VS = ±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

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 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 lownoise
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.