SSM2220 transistor equivalent, audio dual natched pnp transistor.
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 .
Microphone preamplifiers Tape head preamplifiers Current sources and mirrors Low noise precision instrumentation Voltage.
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