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OPA1611, OPA1612
SBOS450C – JU...
Product Folder
Sample & Buy
Technical Documents
Tools & Software
Support & Community
OPA1611, OPA1612
SBOS450C – JULY 2009 – REVISED AUGUST 2014
OPA161x SoundPlus™ High-Performance, Bipolar-Input Audio Operational
Amplifiers
1 Features
1 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
2 Applications
Professional Audio Equipment Microphone Pre
amplifiers Analog and Digital Mixing Consoles Broadcast Studio Equipment Audio Test And Measurement High-End A/V Receivers
0.01 0.001
THD+N Ratio vs Output Amplitude
1kHz Signal BW = 80kHz RSOURCE = 0W
-80 -100
3 Description
The OPA1611 (single) and OPA1612 (dual) bipolarinput 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 wid...