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 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.
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| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 9 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 48 |
| GBW (typ) (MHz) | 20 |
| Slew rate (typ) (V/µs) | 25 |
| Rail-to-rail | No |
| Vos (offset voltage at 25°C) (max) (mV) | 5 |
| Iq per channel (typ) (mA) | 5.3 |
| Vn at 1 kHz (typ) (nV√Hz) | 11 |
| Features | Burr-Brown™ Audio |
| THD + N at 1 kHz (typ) (%) | 0.0003 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| Iout (typ) (A) | 0.035 |
| Architecture | FET |
| CMRR (typ) (dB) | 100 |
| Input bias current (max) (pA) | 200 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
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