OPA161x SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifiers (Rev. C)
SBOS450C – July2009 – revisedAugust 2014
- Superior Sound Quality
- Ultralow Noise: 1.1 nV/√Hz at 1 kHz
- Ultralow Distortion:
0.000015% at 1 kHz
- High Slew Rate: 27 V/μs
- Wide Bandwidth: 40 MHz (G = +1)
- High Open-Loop Gain: 130 dB
- Unity Gain Stable
- Low Quiescent Current:
3.6 mA per Channel
- Rail-to-Rail Output
- Wide Supply Range: ±2.25 V to ±18 V
- Single and Dual Versions Available
- Professional Audio Equipment
- Microphone Preamplifiers
- Analog and Digital Mixing Consoles
- Broadcast Studio Equipment
- Audio Test And Measurement
- High-End A/V Receivers
The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low
1.1-nV/√Hz noise density with an ultralow distortion of 0.000015% at 1 kHz. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. These devices also have a high output drive capability of ±30 mA.
These devices operate over a very wide supply range of ±2.25 V to ±18 V, on only 3.6 mA of supply current per channel. The OPA1611 and OPA1612 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.
The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.
|PART NUMBER||PACKAGE||BODY SIZE (NOM)|
|OPA1611||SOIC (8)||4.90 mm × 3.91 mm|
|OPA1612||SOIC (8)||4.90 mm × 3.91 mm|
|SON (8)||3.00 mm × 3.00 mm|
- For all available packages, see the orderable addendum at the end of the datasheet.
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