Low power consumption analogue signal sample retaining circuit and its application method

A sample-and-hold circuit and analog signal technology, which is applied to electrical components, electronic switches, biological neural network models, etc., can solve the problem of large circuit power consumption and achieve the effect of reducing power consumption
CN1428932AInactive Publication Date: 2003-07-09BEIJING LHWT MICROELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING LHWT MICROELECTRONICS
Publication Date
2003-07-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to an analog signal sampling / holding circuit with low power consumption and its application method. Said invention includes at least three-stage amplification circuit, sampling and holding circuit, and it is characterized by that three control switches are added, and a control signal is newly added, and can be used for respectively controlling the described control switches, and the last one-stage amplification circuit input end can be used for controlling control signal inversion of switch and other control switches. When the neural operation amplification sampling / holding circuit is in the rest state, the power consumption of the circuit only is formed from electric leakage of tube, so that it possesses the advantages of low power consumption, and when the circuit is in the restoration state, its sampling signal can be normally outputted.
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Description

technical field

[0001] The invention belongs to the field of analog signal sampling and holding circuits, in particular to a low power consumption analog signal sampling and holding circuit and an application method thereof. Background technique

[0002] The analog signal sampling and holding circuit samples the input signal in a short period of time, enters the holding mode to stabilize the sampled signal in the remaining cycle time, and outputs the held signal when needed. At present, the common analog signal sampling and holding circuit is composed of at least three stages of amplification circuit, sampling and holding circuit, including an input signal, an output signal and a control signal, and there are only two states of sampling and holding. In the analog signal sampling and holding circuit The MOS tube is always in a saturated state under any circumstances, so the power consumption of the circuit is relatively large.

[0003] After the input signal is processed by ...

Claims

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