This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
I am using DAC0800 which is giving a negative voltage. I tried to convert it to positive by using inverting amplifier but the voltage is getting decrease like if am getting 0v for min. input of DAC and -5V for max. input of DAC after converting 1.9V for min. DAC input and 5V for max. DAC input. Is it possible to get a 0V for min. input of DAC after converting?
This is our first project.Please do help.
Can you tell us more about what speed of conversion you need, and what is the ultimate output voltage range you are looking for? It may be possible to get the DAC0800 output converted to the range you are looking for, but there may also be other TI DAC products that are more suited to your application.
Also, if you could send the schematic of what you currently have prototyped and what type of IC packages you can work with it would help us recommend a circuit to achieve what you are looking for.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Jim Brinkhurst84999:
Hi Sir ,
Thanks for your replay. I am attaching the schematic diagram of our DAC4341.DAC.doc circuit .The output voltage range what we are looking for is 5V for max. DAC input and 0v for min. It would be helpful for our project if conversion speed is within 100u sec.
In reply to mohammed bilal:
Here are some recommended changes to your current circuit to achieve 0V to 5V Vo range. These first few items can be found by careful reading of the LM348-N and DAC0800 datasheets:
Information on general op-amp usage can be found in numerous applications notes, including this one: (http://www.ti.com/lit/an/snla140a/snla140a.pdf)
You may also want to consider a DAC like the TLC7225. It is a voltage output DAC with parallel inputs. It may more directly meet the needs you have.
I hope this is helpful.
Thanks for your answer.It was very helpful for our project.
Best regards ,
Mohammed Bilal Tamkin
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.