GENERAL DESCRIPTION
The SSM2275 and SSM2475 use the Butler Amplifier front end, which combines both bipolar and FET transistors to offer the accuracy and low noise performance of bipolar transistors and the slew rates and sound quality of FETs. This product family includes dual and quad rail-to-rail output audio amplifiers that achieve lower production costs than the industry standard OP275 (the first Butler Amplifier offered by Analog Devices). This lower cost amplifier also offers operation from a single 5 V supply, in addition to conventional ±15 V supplies. The ac performance meets the needs of the most demanding audio applications, with 8 MHz bandwidth, 12 V/µs slew rate and extremely low distortion.

FEATURES
   Single or Dual-Supply Operation
   Excellent Sonic Characteristics
   Low Noise: 7 nV/√Hz
   Low THD: 0.0006%
   Rail-to-Rail Output
   High Output Current: ±50 mA
   Low Supply Current: 1.7 mA/Amplifier
   Wide Bandwidth: 8 MHz
   High Slew Rate: 12 V/μs
   No Phase Reversal
   Unity Gain Stable
   Stable Parameters Over Temperature

APPLICATIONS
   Multimedia Audio
   Professional Audio Systems
   High Performance Consumer Audio
   Microphone Preamplifier
   MIDI Instruments