The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications.
●The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Features include 5.1-nV/√Hz noise, low THD+N (0.00005%), a low input bias current of 2 pA, and low quiescent current of 1.8 mA per channel.
●These devices operate over a very wide supply voltage range of ±2.25 V to ±18 V. The OPA1641, OPA1642, and OPA1644 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.
●The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.
●The OPA1641, OPA1642, and OPA1644 are specified from –40°C to +85°C.
● Superior Sound Quality
● True JFET Input Operational Amplifier
●With Low Input Bias Current
● Low Noise: 5.1 nV/√Hz at 1 kHz
● Ultralow Distortion: 0.00005% at 1 kHz
● High Slew Rate: 20 V/µs
● Unity Gain Stable
● No Phase Reversal
● Low Quiescent Current:
●1.8 mA per Channel
● Rail-to-rail Output
● Wide Supply Range: ±2.25 V to ±18 V
● Single, Dual, and Quad Versions Available
