High-reliability sensor reading circuit
A readout circuit and sensor technology, applied in the direction of electrical components, analog conversion, code conversion, etc., can solve the problems of reduced ADC conversion accuracy, high ADC power consumption, and increased leakage, so as to improve versatility and reliability, avoid The effect of design requirements
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[0020] The following will be combined with the Figure 1-Figure 3 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] The present invention provides a high-reliability sensor readout circuit through improvements such as figure 1As shown, it can be implemented as follows; the circuit has a control logic module, a sample and hold circuit (S / H), a modulator (SDM), a digital filter (Filter); the control logic module receives an oscillator (OSC) to generate a cycle At the same time, the control logic module generates control signals f...
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