| 摘要 |
PURPOSE:To drive a buffer by one stage of an SCFL logic circuit by obtaining two inputs, 'true' and 'false' required for a totem pole type buffer from an output of the SCFL logic circuit. CONSTITUTION:An input signal voltage is impressed to a gate electrode 60 of an FET3 and a comparison voltage is impressed to a gate electrode 61 of an FET4. The difference between the input signal and the comparison voltage is amplified and appears output terminals 20, 21 of the SCFL. In general, the FETs 3, 4 are biased so as to be operated within a drain current saturation region. The outputs 20, 21 of the SCFL connect to the gate electrodes of FETs 6, 7 of the buffer circuit, one FET is turned on and the rest is turned off. Thus, an output is obtained from an output terminal 30. |
