SSM2135 数据手册

The SSM2135 dual audio operational amplifier permits excel- lent performance in portable or low power audio systems, with an operating supply range of 4 V to 36 V or ±2 V to ±18 V. The unity-gain stable device has very low voltage noise of 5.2 nV/√Hz, and total harmonic distortion plus noise below 0.01% over normal signal levels and loads. Such characteristics are enhanced by wide output swing and load drive capability. A unique output stage permits output swing approaching the rail under moderate load conditions. Under severe loading, the SSM2135 still maintains a wide output swing with ultralow distortion. Particularly well suited for computer audio systems and portable digital audio units, the SSM2135 can perform preamplification, headphone and speaker driving, and balanced line driving and receiving. Additionally, the device is ideal for input signal conditioning in single-supply, Σ-Δ, analog-to-digital converter subsystems such as the AD1877. The SSM2135makes an ideal single-supply stereo output amplifier for audiodigital-to-analog converters (DACs) because of its low noiseand distortion. The SSM2135 is available in an 8-lead plastic SOIC package APPLICATIONS Multimedia audio systems Microphone preamplifiers Headphone drivers Differential line receivers Balanced line drivers Audio ADC input buffers Audio DAC l-V converters and filters Pseudoground generators