| 摘要 |
PURPOSE:To form the entire input/output characteristics as the N-power characteristic, by using N-set of D/A converters whose maximum value of the output is set by a reference input. CONSTITUTION:Input terminals D0-D3 (4-bit) of the D/A converters 1, 2 are connected in common, an output terminal OUT of the D/A converter 1 is connected to a reference input terminal Ref- of the D/A converter 2, a 0V voltage is applied to a reference input terminal Ref- of the D/A converter 1, a 5V voltage is applied to a reference input terminal Ref+ of the D/A converter 1 via a resistor R1, a 0V voltage is applied to a reference input Ref+ of the D/A converter 2, a 0V voltage is applied to the output terminal OUT of the D/A converter 1 and the reference input Ref- of the D/A converter 2 via a resistor R3, a 0V voltage is applied to the output terminal OUT of the D/A converter 2 via a resistor R4. The output Vout of the D/A converter 2 is VOUT=KX(D/15)<2>, where D is the input digital amount. |
