CN104779953A - Single-ended signal converting device - Google Patents
Single-ended signal converting device Download PDFInfo
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- CN104779953A CN104779953A CN201510142422.7A CN201510142422A CN104779953A CN 104779953 A CN104779953 A CN 104779953A CN 201510142422 A CN201510142422 A CN 201510142422A CN 104779953 A CN104779953 A CN 104779953A
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Abstract
The invention discloses a single-ended signal converting device. The single-ended signal converting device comprises a differential driver module, an ADC module, a reference voltage source, an analog signal input, a resistor and a capacitor, wherein the difference driver module comprises a first voltage input end, a second voltage input end, a third voltage input end, a first voltage output end and a second voltage output end; the ADC module comprises a signal input end, a signal output end and a power supply connection end. The single-ended signal converting device can convert input single-ended signals into differential signals, a single-ended to differential driver ADA4941-1 and the ultra-low-noise 5.0V reference voltage source ADR435 are adopted, and multiple types of input single-ended signals, including bipolar and unipolar signals, are acceptable.
Description
Technical field
The present invention relates to a kind of conversion single-ended signal device, belong to circuit engineering field.
Background technology
At present, change single-ended analog signal by high-resolution, Differential Input ADC and often there will be too noisy, the problem of high pressure to the bipolarity in low pressure range or unipolar signal cannot be adapted to.
Summary of the invention
Object: in order to overcome the deficiencies in the prior art, the invention provides a kind of conversion single-ended signal device.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of conversion single-ended signal device, comprise differential driver module, ADC module, reference voltage source, analog signal inputs, resistance, electric capacity, described differential driver module comprises: the first voltage input end, second voltage input end, tertiary voltage input, first voltage output end, second voltage output end, described ADC module comprises signal input part, signal output part, power access end, described reference voltage source is connected with power access end, described signal input part, signal output part by resistance respectively with the first voltage output end, second voltage output end is connected, described first voltage input end, second voltage input end is all connected with Earth Phase by electric capacity, described tertiary voltage input is connected with analog signal input by resistance, resistance is in series with between described tertiary voltage input and signal output part.
Also comprise filter capacitor, described filter capacitor is connected in parallel between tertiary voltage input and signal output part.
Preferably, described differential driver module adopts ADA4941.
Preferably, described ADC module adopts AD7892.
Preferably, described reference voltage source adopts ADR435.
Beneficial effect: one conversion single-ended signal device provided by the invention, single ended signal can be converted to differential signal, adopt single-ended transfer difference driver ADA4941-1 and ultra-low noise 5.0V reference voltage source ADR435, eurypalynous single ended signal perhaps can be accepted, comprise bipolarity or unipolar signal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of conversion single-ended signal device, comprise differential driver module 1, ADC module 2, reference voltage source 3, analog signal input 4, resistance 5, electric capacity 6, described differential driver module 1 comprises: the first voltage input end 11, second voltage input end 12, tertiary voltage input 13, first voltage output end 14, second voltage output end 15, described ADC module 2 comprises signal input part 21, signal output part 22, power access end 23, described reference voltage source 3 is connected with power access end 23, described signal input part 21, signal output part 22 by resistance 5 respectively with the first voltage output end 14, second voltage output end 15 is connected, described first voltage input end 11, second voltage input end 12 is all connected with Earth Phase by electric capacity 6, described tertiary voltage input 13 inputs 4 by resistance 5 and analog signal and is connected, resistance 5 is in series with between described tertiary voltage input 13 and signal output part 22.
Also comprise filter capacitor 7, described filter capacitor 7 is connected in parallel between tertiary voltage input 13 and signal output part 22.
Preferably, described differential driver module 1 adopts ADA4941.
Preferably, described ADC module 2 adopts AD7892.
Preferably, described reference voltage source 3 adopts ADR435.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a conversion single-ended signal device, comprise differential driver module, ADC module, reference voltage source, it is characterized in that: also comprise analog signal input, resistance, electric capacity, described differential driver module comprises: the first voltage input end, second voltage input end, tertiary voltage input, first voltage output end, second voltage output end, described ADC module comprises signal input part, signal output part, power access end, described reference voltage source is connected with power access end, described signal input part, signal output part by resistance respectively with the first voltage output end, second voltage output end is connected, described first voltage input end, second voltage input end is all connected with Earth Phase by electric capacity, described tertiary voltage input is connected with analog signal input by resistance, resistance is in series with between described tertiary voltage input and signal output part.
2. one conversion single-ended signal device according to claim 1, it is characterized in that: also comprise filter capacitor, described filter capacitor is connected in parallel between tertiary voltage input and signal output part.
3. one conversion single-ended signal device according to claim 1, is characterized in that: described differential driver module adopts ADA4941.
4. one conversion single-ended signal device according to claim 1, is characterized in that: described ADC module adopts AD7892.
5. one conversion single-ended signal device according to claim 1, is characterized in that: described reference voltage source adopts ADR435.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142422.7A CN104779953A (en) | 2015-03-30 | 2015-03-30 | Single-ended signal converting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142422.7A CN104779953A (en) | 2015-03-30 | 2015-03-30 | Single-ended signal converting device |
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| CN104779953A true CN104779953A (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510142422.7A Pending CN104779953A (en) | 2015-03-30 | 2015-03-30 | Single-ended signal converting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109379081A (en) * | 2018-10-29 | 2019-02-22 | 合肥本源量子计算科技有限责任公司 | A kind of digital analog converter and its control method |
| CN111835353A (en) * | 2019-04-19 | 2020-10-27 | 深圳市柯雷科技开发有限公司 | Universal conversion circuit from single-ended/differential signal to various differential signals |
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| CN103226534A (en) * | 2013-03-29 | 2013-07-31 | 北京工业大学 | Isolated type high-speed data acquisition card |
| CN104268300A (en) * | 2014-09-19 | 2015-01-07 | 陕西高新实业有限公司 | Multifunctional data acquisition system |
| CN104428993A (en) * | 2012-05-24 | 2015-03-18 | 意法爱立信有限公司 | Two-stage operational amplifier in class AB |
| CN204633754U (en) * | 2015-03-30 | 2015-09-09 | 苏州固基电子科技有限公司 | A kind of conversion single-ended signal device |
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2015
- 2015-03-30 CN CN201510142422.7A patent/CN104779953A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104428993A (en) * | 2012-05-24 | 2015-03-18 | 意法爱立信有限公司 | Two-stage operational amplifier in class AB |
| CN103226534A (en) * | 2013-03-29 | 2013-07-31 | 北京工业大学 | Isolated type high-speed data acquisition card |
| CN104268300A (en) * | 2014-09-19 | 2015-01-07 | 陕西高新实业有限公司 | Multifunctional data acquisition system |
| CN204633754U (en) * | 2015-03-30 | 2015-09-09 | 苏州固基电子科技有限公司 | A kind of conversion single-ended signal device |
Non-Patent Citations (1)
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| ANALOG DEVICES: "采用差分PulSAR ADC AD7982转换单端信号", 《电路笔记》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109379081A (en) * | 2018-10-29 | 2019-02-22 | 合肥本源量子计算科技有限责任公司 | A kind of digital analog converter and its control method |
| CN109379081B (en) * | 2018-10-29 | 2022-06-10 | 合肥本源量子计算科技有限责任公司 | Digital-analog converter and control method thereof |
| CN111835353A (en) * | 2019-04-19 | 2020-10-27 | 深圳市柯雷科技开发有限公司 | Universal conversion circuit from single-ended/differential signal to various differential signals |
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Application publication date: 20150715 |