8.1 Application Information

The OPA164x-Q1 amplifiers are unity-gain stable, audio operational amplifiers with very low noise, input bias current, and input offset voltage. Applications with noisy or high-impedance power supplies require decoupling capacitors placed close to the device pins. In most cases, 0.1-μF capacitors are adequate. Figure 32 shows a simplified schematic of the OPA1641-Q1.

Figure 32. Simplified Internal Schematic