64 to 1 analog switch circuit of t-switch structure

An analog switch circuit, analog switch technology, applied in electronic switches, electrical components, pulse technology, etc.

Inactive Publication Date: 2010-03-31
NO 24 RES INST OF CETC
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 64 input select 1 analog switch circuit with T-type switch structure has not been reported at home and abroad

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 64 to 1 analog switch circuit of t-switch structure
  • 64 to 1 analog switch circuit of t-switch structure
  • 64 to 1 analog switch circuit of t-switch structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The circuit block diagram of the 64 input selection 1 analog switch circuit of the T-type switch structure of the present invention concrete implementation is as figure 1 As shown, it mainly consists of four 16-to-1 analog switch units 1of16_1~1of16_4, four switch units SW1-SW4 constituting a 4-to-1 analog switch unit, seven level conversion circuit units D1~D7 and a decoder decode1 composition. Its specific structure, connection relationship, and functional relationship are the same as the content of the invention in this specification, and will not be repeated here.

[0037] The specific implementation manners of the present invention are not limited to the following description, and are now further described in conjunction with the accompanying drawings.

[0038] The circuit block diagram of the analog switch circuit of 64 selections of T-type switch structure of the present invention is as figure 1 shown. The whole circuit is divided into four groups, each group ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a 64 to 1 analog switch circuit of a T-switch structure. The circuit mainly comprises four 16 to 1 analog switch units, four analog switch units forming a 4 t o1 analog switchunit, seven level conversion circuit units and a decoder. The work voltage of the circuit is between +15 and -15V, and the range of transmitted analog signals is between +10 and -10V. The circuit is divided into four groups, wherein each group is cascaded by a 16 to 1 analog switch unit and a transmission switch unit in the 4 to 1 analog switch unit; a switch at an internal connecting point is grounded to form the T-switch structure; and the selection control function of the circuit is realized by two types of decoders, and only one channel in 64 channels can be switched on at the same time. The circuit can improve the switching ratio of the switch by over 10dB and reduce the crosstalk between the channels by over 10dB, and is quite favorable for the domain layout. The circuit is applied to the front end of a data acquisition system to realize the selective switching processing for 64-channel analog input, and can also perform time-sharing acquisition on 64-channel digital informationto realize the acquiring and editing of multi-channel numerical codes.

Description

technical field [0001] The invention relates to a 64-select 1 analog switch circuit, in particular to a 64-select 1 analog switch with a T-type switch structure. Its direct application field is the front end of the data acquisition system, which realizes the selection and switching processing of 64 channels of analog input; it can also collect 64 channels of digital signals in time division, and realizes the editing and processing of multi-channel digital signals. Background technique [0002] A common multi-channel analog switch is a multi-channel switch circuit with 16 channels or less. The usual 16-to-1 switch is composed of 16 analog switches, 16 output terminals are connected together, and the inputs of the 16 analog switches are connected to different analog input signals. , The four-bit address code combined with the enable signal generates 16 digital outputs through the 4-16 line decoder, and selects any one of the 16 switches. The 64 input select 1 analog switch ci...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H03K17/00H03K17/693
Inventor 舒辉然冉建桥熊化兵刘伦才石建刚温玉蒲林刘勇唐昭焕
Owner NO 24 RES INST OF CETC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap