| 摘要 |
In a circuit arrangement for adjusting a T-shaped resistor arrangement (R1 to R7) with the aid of digital control signals (D1, D2, D3), the series resistors (R1, R2, R3) of the resistor arrangement (R1 to R7) can be shortcircuited by disconnecting shunt resistors (R5, R6 and R7) or can also be switched to be effective when the shunt resistors (R5, R6 and R7) are switched to be effective. As a result, a logarithmic relationship between input variable and output variable of the signal transmission path (e, a) can be set, the input resistance remaining the same. <IMAGE>
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