CN100539426C - Single electron analog and digital signal conversion equipment - Google Patents
Single electron analog and digital signal conversion equipment Download PDFInfo
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- CN100539426C CN100539426C CNB2004100348707A CN200410034870A CN100539426C CN 100539426 C CN100539426 C CN 100539426C CN B2004100348707 A CNB2004100348707 A CN B2004100348707A CN 200410034870 A CN200410034870 A CN 200410034870A CN 100539426 C CN100539426 C CN 100539426C
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 29
- 238000005070 sampling Methods 0.000 claims description 28
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Abstract
一种单电子模拟数字信号转换装置，其包括：一采样保持器；一信号分配器，该信号分配器的输入端与采样保持器的输出端相连；一单电子模拟数字信号转换器，该单电子模拟数字信号转换器的输入端与信号分配器的输出端相连，并且直接输出数字信号；以上电路组成模拟数字信号转换装置，采样保持器对输入的模拟信号进行跟踪采样并进行保持，输出信号给信号分配器，信号分配器按AD的位数n将输入信号分成n路，每一路信号的加权因子为1，1/2，1/4，…..1/2n-1，n路信号分别加到单电子模拟数字信号转换器的n路变换电路上，单电子模拟数字信号转换器对输入信号进行同时变换，最终实现快速模数信号转换。
A single-electron analog-to-digital signal conversion device, which includes: a sample holder; a signal distributor, the input end of the signal distributor is connected to the output end of the sample-holder; a single-electron analog-to-digital signal converter, the single The input terminal of the electronic analog-to-digital signal converter is connected to the output terminal of the signal distributor, and directly outputs the digital signal; the above circuits form an analog-to-digital signal conversion device, and the sample holder tracks and samples the input analog signal and holds it, and outputs the signal To the signal distributor, the signal distributor divides the input signal into n channels according to the number of bits n of AD, and the weighting factor of each channel signal is 1, 1/2, 1/4, ... 1/2 n-1 , n channels The signals are respectively added to the n-way conversion circuits of the single-electron analog-to-digital signal converter, and the single-electron analog-to-digital signal converter simultaneously transforms the input signals, finally realizing fast analog-to-digital signal conversion.
Description
Technical field
The present invention relates to be used for the signal processing technology field from the analog signal conversion to the digital signal, especially a kind of single electron analog and digital signal conversion equipment.
Background technology
The nature variable all occurs with analog form, but present information processing, information stores and message transmission are carried out with digital form mostly.So become the chromacoder (ADC) of digital signal in the modern signal processing system, to be absolutely necessary analog signal conversion.
Semiconductor integrated circuit develops towards high integration, direction high-speed and low-power consumption always.Single electron analog and digital signal conversion equipment has high integration, low-power consumption and high-speed advantage and is hopeful to replace traditional adc circuit most owing to it.At present, have the people that the single electron adc circuit is studied, but they all can only be worked at low temperatures.Can't satisfy the requirement of work under the room temperature condition.
The content of invention
The objective of the invention is to, a kind of single electron analog and digital signal conversion equipment is provided, its advantage is simple in structure, and is low in energy consumption, integrated level height, precision height and good stability.
Technical solution of the present invention is:
The present invention relates to a kind of single electron analog and digital signal conversion equipment, it is characterized in that it comprises:
One sampling holder;
One signal distributor, the input of this signal distributor links to each other with the output of sampling holder;
One single electron analog and digital signal transducer, the input of this single electron analog and digital signal transducer links to each other with the output of signal distributor, and directly exports digital signal;
Wherein single electron analog and digital signal transducer is made of a n analog and digital signal change-over circuit module in parallel, each analog and digital signal change-over circuit module is by a pair of bar single electronic transistor, one MOS transistor and a current source constitute, the input V of each analog and digital signal change-over circuit module
jConnect the output analog signal output after one tunnel weighted in the signal distributor, the auxiliary grid V of single-electronic transistor
SjConnect a fixing bias voltage, the grid V of MOS transistor
GjConnect a fixing bias voltage;
Above circuit is formed the analog and digital signal conversion equipment, sampling holder carries out tracking sampling to the analog signal of input and keeps, and outputs signal to signal distributor, and signal distributor is divided into the n road by the figure place n of analog digital conversion with input signal, the weighted factor of each road signal is 1,1/2
1, 1/2
2..., 1/2
N-1, n road signal is added to respectively on the n road translation circuit of single electron analog and digital signal transducer, and single electron analog and digital signal transducer carries out the while conversion to input signal, finally realizes quick modulus signal conversion.
Wherein sampling holder comprises: a MOS transistor; One sampling keeps electric capacity, and this sampling keeps the input of electric capacity to link to each other with the output of MOS transistor, and this sampling keeps the other end ground connection of electric capacity.
In order to solve the shortcoming of above single electron adc circuit, the adc circuit that a kind of single-electronic transistor that we propose and MOS transistor are mixed.They have the following advantages:
On technology, realize easily;
Can work at ambient temperature;
Has good stable;
The linearity is good;
The precision height;
Simple in structure.
Description of drawings
For further specifying technology contents of the present invention, below in conjunction with drawings and Examples to the detailed description of the invention as after, wherein:
Fig. 1 is an analog and digital signal conversion equipment schematic diagram of the present invention;
Fig. 2 is the schematic diagram of the embodiment of sampling holder among Fig. 1;
Fig. 3 is the schematic diagram of the embodiment of signal distributor among Fig. 1;
Fig. 4 is the schematic diagram of the embodiment of analog and digital signal change-over circuit among Fig. 1;
Fig. 5 is the embodiment schematic diagram of analog and digital signal conversion equipment of the present invention;
Embodiment
As shown in Figure 1, n position analog and digital signal conversion equipment is by the sampling holder circuit, and signal divider circuit and analog and digital signal change-over circuit constitute.Its annexation is: a sampling holder 10; One signal distributor 20, the input of this signal distributor 20 links to each other with the output of sampling holder 10; One single electron analog and digital signal change-over circuit 30, the input of this single electron analog and digital signal change-over circuit 30 links to each other with the output of signal distributor 20, the digital signal output that the output of this single electron analog and digital signal change-over circuit 30 is final.The input analog signal at first arrives sampling holder 10 circuit, and 10 pairs of signals of sampling holder are sampled and kept and signal is exported to signal distributor 20, and 20 pairs of signals of signal distributor are weighted and handle back output weighted factor is respectively 1,1/
2, 1/2
2, 1/2
3..., 1/2
N-1N road output analog signal to single electron analog and digital signal change-over circuit 30, n converting unit of single electron analog and digital signal change-over circuit 30 changed the n road analog signal of signal distributor 20 respectively, obtains n bit digital output signal D
nD
N-1D
2D
1Weighted factor 1,1/2,1/2
2, 1/2
3..., 1/2
N-1Corresponding respectively output signal D
1, D
2, D
3, D
4... D
n
As shown in Figure 2, sampling holder 10 keeps electric capacity 50 to constitute by MOS transistor 40 and sampling.One MOS transistor 40; One sampling keeps electric capacity 50, and this sampling keeps the input of electric capacity 50 to link to each other with the output of MOS transistor 40.MOS transistor 40 is reached the purpose that input signal is sampled and kept as switch by external clock control switch sequential; Sampling keeps electric capacity 50, by discharging and recharging of electric charge input signal is sampled and is kept.
As shown in Figure 3, signal distributor 20 is 2n capacitor C
AiAnd C
Bi(I=1,2 ... the n) network of Gou Chenging, C
A1Another termination input signal of one end ground connection, C
B1Input and C
A1Input connects; C
AiOne another termination of end ground connection C
Bi-1Output, C
BiInput and C
Bi-1Output connects; C
AnOne another termination of end ground connection C
Bn-1Output, C
BnInput and C
Bn-1Output connects, other end ground connection.20 pairs of input signals of signal distributor are weighted and handle back output weighted factor is respectively 1,1/2,1/2
2, 1/2
3..., 1/2
N-1N road output analog signal.
As shown in Figure 4, single electron analog and digital signal change-over circuit 30 is by a n analog and digital signal change-over circuit modules A D in parallel
j(j=1,2 ... n) constitute each modules A D
jBy a pair of bar single electronic transistor SET
i, a MOS transistor Mi and a current source constitute A
i, each analog and digital signal change-over circuit modules A D
jInput V
jConnect the output analog signal output after one tunnel weighted in the signal distributor, the auxiliary grid V of single-electronic transistor
SjConnect a fixing bias voltage, be used for controlling the position phase of output signal, the grid V of MOS transistor
GjConnect the source-drain voltage of a fixing bias voltage control single-electronic transistor.With the variation of input analog signal, the periodic signal of output output height concussion has realized that promptly analog signal conversion becomes the conversion of signals of digital signal.
The circuit diagram of the embodiment of n position analog and digital signal conversion equipment as shown in Figure 5.Its sampling holder circuit, signal divider circuit and single electron analog and digital signal change-over circuit are respectively by Fig. 2, and Fig. 3 and circuit shown in Figure 4 constitute, and can realize the analog and digital signal conversion of n position.
Claims (2)
1. single electron analog and digital signal conversion equipment is characterized in that it comprises:
One sampling holder;
One signal distributor, the input of this signal distributor links to each other with the output of sampling holder;
One single electron analog and digital signal transducer, the input of this single electron analog and digital signal transducer links to each other with the output of signal distributor, and directly exports digital signal;
Wherein single electron analog and digital signal transducer is made of a n analog and digital signal change-over circuit module in parallel, each analog and digital signal change-over circuit module is by a pair of bar single electronic transistor, one MOS transistor and a current source constitute, the input V of each analog and digital signal change-over circuit module
jConnect the output analog signal output after one tunnel weighted in the signal distributor, the auxiliary grid V of single-electronic transistor
SjConnect a fixing bias voltage, the grid V of MOS transistor
GjConnect a fixing bias voltage;
Above circuit is formed the analog and digital signal conversion equipment, sampling holder carries out tracking sampling to the analog signal of input and keeps, and outputs signal to signal distributor, and signal distributor is divided into the n road by the figure place n of analog digital conversion with input signal, the weighted factor of each road signal is 1,1/2
1, 1/2
2..., 1/2
N-1, n road signal is added to respectively on n analog and digital signal change-over circuit module of single electron analog and digital signal transducer, and single electron analog and digital signal transducer carries out the while conversion to input signal, finally realizes quick modulus signal conversion.
2. single electron analog and digital signal conversion equipment as claimed in claim 1 is characterized in that wherein sampling holder comprises: a MOS transistor; One sampling keeps electric capacity, and this sampling keeps the input of electric capacity to link to each other with the output of MOS transistor, and this sampling keeps the other end ground connection of electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100348707A CN100539426C (en) | 2004-04-16 | 2004-04-16 | Single electron analog and digital signal conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100348707A CN100539426C (en) | 2004-04-16 | 2004-04-16 | Single electron analog and digital signal conversion equipment |
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| Publication Number | Publication Date |
|---|---|
| CN1684370A CN1684370A (en) | 2005-10-19 |
| CN100539426C true CN100539426C (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100348707A Expired - Fee Related CN100539426C (en) | 2004-04-16 | 2004-04-16 | Single electron analog and digital signal conversion equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110299919B (en) * | 2019-08-26 | 2019-12-13 | 成都铭科思微电子技术有限责任公司 | low-power-consumption ultrahigh-speed high-precision analog-to-digital converter |
| CN110632359B (en) * | 2019-09-26 | 2021-11-30 | 中核控制系统工程有限公司 | Analog quantity isolation system and method based on flying capacitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260660A (en) * | 1998-10-07 | 2000-07-19 | 株式会社高取育英会 | Analog-digital converter |
| CN2496134Y (en) * | 2001-01-15 | 2002-06-19 | 中国科学院物理研究所 | Sigle electron transistor |
| CN1464561A (en) * | 2002-06-21 | 2003-12-31 | 中国科学院半导体研究所 | Single electron multi-value memory device |
-
2004
- 2004-04-16 CN CNB2004100348707A patent/CN100539426C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260660A (en) * | 1998-10-07 | 2000-07-19 | 株式会社高取育英会 | Analog-digital converter |
| CN2496134Y (en) * | 2001-01-15 | 2002-06-19 | 中国科学院物理研究所 | Sigle electron transistor |
| CN1464561A (en) * | 2002-06-21 | 2003-12-31 | 中国科学院半导体研究所 | Single electron multi-value memory device |
Non-Patent Citations (2)
| Title |
|---|
| A Single-Electron-Transistor-based Analog/Digital Converter. C.H.Hu,J.F.Jiang, Q.Y.Cai:.Proceedings of the 2002 2nd IEEE Conference on Nanotechnology. 2002 * |
| Programmable Single-Electron Transistor Logic for Future Low-Power Intelligent LSI: Proposal and Room-Temperature Operation. Ken Uchida, Junji Koga, Ryuji Ohba, and Akira Toriumi:.IEEE TRANSACTIONS ON ELECTRON DEVICES,Vol.50, No.7. 2003 * |
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|---|---|
| CN1684370A (en) | 2005-10-19 |
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