OPA1641-Q1 - Automotive Sound-Plus High-Performance, JFET-Input Audio Op Amps

The OPA1641-Q1 (single) and OPA1642-Q1 (dual) series are JFET-input, ultra-lowdistortion, low-noise operational amplifiers (op amps) fully specified for audioapplications.

The rail-to-rail output swing allows increased headroom, making these devices ideal foruse in any audio circuit. Features include 5.1-nV/√Hz noise, low totalharmonic distortion + noise (THD+N) (0.00005%), a low input bias current of 2 pA, and low quiescentcurrent of 1.8 mA per channel.

These devices operate over a very wide supply voltage range of ±2.25 V to ±18 V. TheOPA164x-Q1 series of operational amplifiers are unity-gain stable and provide excellent dynamicbehavior over a wide range of load conditions.

The dual version features completely independent circuitry for lowest crosstalk andfreedom from interactions between channels, even when overdriven or overloaded.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Device HBM ESD Classification Level 2
  • Device CDM ESD Classification Level C6
• Low Noise: 5.1 nV/√Hz at 1 kHz
• Ultra-low 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

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