Clock generation circuit and analogue-to-digital converter (ADC) sampling circuit
A clock generation circuit and clock signal technology, applied in electrical components, electrical signal transmission systems, analog-to-digital converters, etc., can solve problems such as limited increase in clock signal voltage value, complex circuit structure, and variable on-resistance of transistor switches. , to achieve the effect of improving response speed, reducing harmonic distortion and small equivalent resistance
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[0074] The working process of the clock generating circuit of the second embodiment is similar to that of the first embodiment, and will not be repeated here.
[0075] Figure 7 Shows a schematic diagram of the waveform of a clock signal generated by superimposing a voltage pulse signal and an analog pulse signal. by Figure 7 It can be seen that the voltage value of the clock signal CKBS is the sum of the power supply voltage of the bias power supply VDD and the voltage of the analog signal SIG. Combining the foregoing formula, for an NMOS transistor, the gate input clock signal CKBS, the source input analog signal SIG, so V g -V in Certainly, that is, the equivalent resistance R of the NMOS transistor switch is constant, and the NMOS transistor switch can be regarded as a constant conductance switch.
[0076] It should be noted that the first pulse control signal CK1, the second pulse control signal CK2, and the third pulse control signal CK3 can be based on the first input uni...
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