Gain amplifying circuit diagram or programming

Posted on Mar 28, 2007

As shown in FIG PGA103 constituted by a wide input voltage range of the amplifier. 11.3k with 102k resistor voltage divider circuit dividing ratio of about 1/10, such as when t

Gain amplifying circuit diagram or programming
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he input voltage is 120V, after dividing the input voltage applied PGA103 only 12V, wide input voltage can be. At the same time, the diode D1, D2 (take 1N4148) play a two-way clamping action, PGA103 input voltage of 15 ~ disabilities 0.7V.

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