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