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Using TLC251Microphone preamplifier Circuit Diagram


This is an IC Using TLC251Microphone preamplifier Circuit Diagram. A microphone preamplifier using: om CMOS op amp with its own battery, is small enough to be placed in a case of small microphone. The amplifier operates from a 1.5V battery cathode mercury low supply currents. This preamp will operate at very low power and maintain a reasonable frequency response as well. 

 Microphone preamplifier Circuit Diagram


Using TLC251Microphone preamplifier Circuit Diagram


Using TLC251Microphone preamplifier Circuit Diagram

The TLC251 is operating in low bias (operating at 1.5 V) draws a supply current of only 10 and has a year - frequency response of 3 dB 27 Hz to 4.8 kHz. With 8-pin grounded, which is designated as the polarization state high limit increases above 25 kHz. Supply current is only - 30 pA under these conditions.
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