MAX4468EKA+T

The MAX4468EKA+T is a low cost, micropower microphone preamplifier with complete shutdown in 8 pin SOT-23 package. The low power, micropower op-amp designed to be used as microphone preamplifiers. This preamplifier is an excellent choice for noisy environments because of its high common mode rejection and excellent power supply rejection ratios. It has a minimum stable gain of +5V/V while providing a 600KHz gain bandwidth product. The device features a complete shutdown which is active-high and a shutdown-controlled output providing bias to the microphone. Typical applications include microphone preamplifiers, hearing aids, cellular phones, voice recognition systems, digital dictation devices, headsets and portable computing.

• Supply voltage range is 2.4V to 5.5V
• Operating temperature range from -40°C to 85°C
• Excellent power supply rejection ratio of 112dB
• Excellent common mode rejection ratio of 126dB
• High AVOL of 125dB at RL = 100kohm
• Low quiescent supply current of 24μA
• Gain bandwidth product of 600KHz at AV ≥ 5

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