CN204556682U - A kind of DAC multichannel voltage output unit - Google Patents
A kind of DAC multichannel voltage output unit Download PDFInfo
- Publication number
- CN204556682U CN204556682U CN201520264306.8U CN201520264306U CN204556682U CN 204556682 U CN204556682 U CN 204556682U CN 201520264306 U CN201520264306 U CN 201520264306U CN 204556682 U CN204556682 U CN 204556682U
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- dac
- voltage output
- power
- output unit
- module
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Abstract
The utility model discloses a kind of DAC multichannel voltage output unit, comprise reference voltage module, protection electric capacity, power supply input, DAC module, described DAC module pin comprises AV, DV, REFIN, REFGND, SIGNAGND, VOUT, described Power Entry Module comprises: power input, power output end, power ground end, and described power supply input is connected with power input, AV, DV; Described power output end is connected with REFIN; Described power ground end, the equal ground connection of REFGND, SIGNAGND; Described VOUT comprises multiple voltage output end mouth; Describedly be parallel with protection electric capacity between REFIN, REFGND, described AV, DV are all parallel with protection electric capacity with ground connection.A kind of DAC multichannel voltage output unit that the utility model provides, structure is simple, high-performance, temperature stability are strong.
Description
Technical field
The utility model relates to a kind of DAC multichannel voltage output unit, belongs to electronic circuit technology field.
Background technology
Laboratory in colleges and universities, investigation of materials and device detection etc. require that use one is with the applications of power source.And require that output level can meet the wide-range voltage source requirement needed for Analysis of Electrical Characteristics of components and parts, circuit, module and completed device.How to keep outstanding temperature drifting performance, and structure is simple, reducing costs, is the problem that those skilled in the art will solve.
Utility model content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of DAC multichannel voltage output unit.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of DAC multichannel voltage output unit, comprise reference voltage module, protection electric capacity, power supply input, DAC module, described DAC module pin comprises AV, DV, REFIN, REFGND, SIGNAGND, VOUT, described Power Entry Module comprises: power input, power output end, power ground end, and described power supply input is connected with power input, AV, DV; Described power output end is connected with REFIN; Described power ground end, the equal ground connection of REFGND, SIGNAGND; Described VOUT comprises multiple voltage output end mouth; Describedly be parallel with protection electric capacity between REFIN, REFGND, described AV, DV are all parallel with protection electric capacity with ground connection.
Described reference voltage module installation is ADR431.
Described DAC module is set to AD5390.
Described VOUT is set to 16 voltage output end mouths.
Preferably, described protection capacitance in parallel between REFIN, REFGND is set to 0.1uf.
Preferably, the protection capacitance that described AV, DV are in parallel with ground connection is set to 10uf.
Beneficial effect: a kind of DAC multichannel voltage output unit that the utility model provides, can provide 8-16 DAC passage, and 12-14 bit resolution; And accurate reference voltage can guarantee that the temperature stability of circuit is usually less than 3ppm/C.The design's structure is simple, high-performance, temperature stability are strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of DAC multichannel voltage output unit, comprise reference voltage module 1, protection electric capacity 2, power supply input 3, DAC module 4, described DAC module pin comprises AV41, DV42, REFIN43, REFGND44, SIGNAGND45, VOUT46, described Power Entry Module comprises: power input 11, power output end 12, power ground end 13, and described power supply input 3 is connected with power input 11, AV41, DV42; Described power output end 12 is connected with REFIN43; Described power ground end 13, the equal ground connection of REFGND44, SIGNAGND45; Described VOUT46 comprises multiple voltage output end mouth; Described being parallel with between REFIN43, REFGND44 protects electric capacity 2, and described AV41, DV42 are all parallel with ground connection and protect electric capacity 2.
Described reference voltage module 1 is set to ADR431.
Described DAC module 4 is set to AD5390.
Described VOUT46 is set to 16 voltage output end mouths.
Preferably, described protection electric capacity 2 value in parallel between REFIN43, REFGND44 is set to 0.1uf.
Preferably, protection electric capacity 2 value that described AV41, DV42 are in parallel with ground connection is set to 10uf.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a DAC multichannel voltage output unit, comprise reference voltage module, protection electric capacity, power supply input, it is characterized in that: also comprise DAC module, described DAC module pin comprises AV, DV, REFIN, REFGND, SIGNAGND, VOUT, described Power Entry Module comprises: power input, power output end, power ground end, and described power supply input is connected with power input, AV, DV; Described power output end is connected with REFIN; Described power ground end, the equal ground connection of REFGND, SIGNAGND; Described VOUT comprises multiple voltage output end mouth; Describedly be parallel with protection electric capacity between REFIN, REFGND, described AV, DV are all parallel with protection electric capacity with ground connection.
2. a kind of DAC multichannel voltage output unit according to claim 1, is characterized in that: described reference voltage module installation is ADR431.
3. a kind of DAC multichannel voltage output unit according to claim 1, is characterized in that: described DAC module is set to AD5390.
4. a kind of DAC multichannel voltage output unit according to claim 1, is characterized in that: described VOUT is set to 16 voltage output end mouths.
5. a kind of DAC multichannel voltage output unit according to claim 1, is characterized in that: described protection capacitance in parallel between REFIN, REFGND is set to 0.1uf.
6. a kind of DAC multichannel voltage output unit according to claim 1, is characterized in that: described AV, DV protection capacitance in parallel with ground connection is set to 10uf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264306.8U CN204556682U (en) | 2015-04-28 | 2015-04-28 | A kind of DAC multichannel voltage output unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264306.8U CN204556682U (en) | 2015-04-28 | 2015-04-28 | A kind of DAC multichannel voltage output unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204556682U true CN204556682U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520264306.8U Expired - Fee Related CN204556682U (en) | 2015-04-28 | 2015-04-28 | A kind of DAC multichannel voltage output unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204556682U (en) |
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2015
- 2015-04-28 CN CN201520264306.8U patent/CN204556682U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160428 |