| 摘要 |
The invention relates to a logarithmic amplifier for reading an input current (Iin) or input voltage (Uin) and for giving out an output voltage (Uout), said logarithmic amplifier including a transistor (T1) or diode for generating logarithmic amplification, said transistor (T1) or diode including an inner serial resistance. According to the invention a compensation voltage (UC) is arranged to be subtracted from the output voltage (Uout) to compensate for voltage drop over the inner serial resistance.
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