Home > Power Circuits > Simple mode logarithmic amplifier circuit of LOG100

Simple mode logarithmic amplifier circuit of LOG100

Source: InternetPublisher:消失的歌 Keywords: Power supply other power circuits Updated: 2021/08/24

Simple mode logarithmic amplifier circuit of LOG100

The figure shows the simple mode logarithmic amplifier circuit of LOG100. The signal input currents I1 and I2 are transformed into logarithmic output VOUT=K·LOG(I1/I2) through LOG100. It can be seen from the equivalent circuit diagram that different coefficients K (1, 3, 5) can be obtained by connecting different pins (3, 4, 5) to the output end.

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