GENERAL DESCRIPTION

The SSM2220 is a dual, low noise, matched PNP transistor, which has been optimized for use in audio applications.

The ultralow input voltage noise of the SSM2220 is typically only 0.7 nV/√Hz over the entire audio bandwidth of 20 Hz to 20 kHz. The low noise, high bandwidth (190 MHz), and offset voltage of (200 μV maximum) make the SSM2220 an ideal choice for demanding, low noise preamplifier applications.

FEATURES

  Low voltage noise at 100 Hz, 1 nV/√Hz maximum

  High gain bandwidth: 190 MHz typical

  Gain at IC = 1 mA, 165 typical

  Tight gain matching: 3% maximum

  Outstanding logarithmic conformance: rBE = 0.3 Ω typical

  Low offset voltage: 200 μV maximum

APPLICATIONS

  Microphone preamplifiers

  Tape head preamplifiers

  Current sources and mirrors

  Low noise precision instrumentation

  Voltage controlled amplifiers/multipliers