Simple mode logarithmic amplifier circuit of LOG100
Source: InternetPublisher:消失的歌 Keywords: Power supply other power circuits Updated: 2021/08/24
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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