| 摘要 |
A dual-slope waveform generation circuit without a DC path and with decreased layout area including a pull-up and pull-down resistor, a transmission gate and an inverter. An input signal IN is applied to the pull-up transistor, to each gates of MOS transistors M1, M2 composing of the inverter A, and to drains of MOS transistors M3, M4 composing of the transmission gate B. A common node in the inverter is connected to the gate of the N type MOS transistor in the transmission gate. The sources of the transistors M3, M4 are connected to the gate of the pull-down transistor. An output signal OUT is applied to the gate of the transistor M4 and the signal is fed back.
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