Low-power-consumption successive approximation analog-to-digital converter
A successive approximation, analog-to-digital converter technology, applied in the direction of analog/digital conversion, code conversion, instruments, etc., to achieve the effect of reducing power consumption, reducing circuit power consumption, and avoiding power consumption
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[0027] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] Such as figure 1 As shown, the low-power successive approximation analog-to-digital converter of the present invention includes: a sample-and-hold module, a comparison module, a digital logic control unit, and two capacitor array modules; wherein: the sample-and-hold module is used for differential analog signals Sampling and holding to obtain two differential sampling signals; the capacitor array module is based on the corresponding differential sampling signal and the n-1 group switch control signals provided by the digital logic control unit (the switch control signal is composed of n-1 switch levels, which are used In order to determine the lower plate voltages of the other n-1 switch capacitors in the capacitor array module except the highest ...
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