Automotive sound plus high-performance from new audio op amps

The Texas Instruments OPA1641-Q1 (single) and OPA1642-Q1 (dual) series are JFET-input, ultra-low distortion, low-noise op amps fully specified for audio applications. The rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Features include 5.1nV/vHz noise, low THD+N (0.00005%), a low input bias current of 2pA, and low quiescent current of 1.8mA per channel. These devices operate over a very wide supply voltage range of ±2.25V to ±18V. This series of operational amplifiers are unity-gain stable and provide excellent dynamic behaviour 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.