Description
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.
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