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.
Part Number: AM26LV31E-EP
we are having two modules each module is having am26lv31e driver which drives rs485 signals. at the destination there is single receiver. our application is such that one module is driving rs 485 signals other module should be in high impedance. if we short both the driver op's to destination is it going to work?can we use EN/EN- to make drivers active and high impedance?
attachment shows our application.System 1 RS422.docx
First off, the AM26LV31/2 are RS422 driver/receivers. They are not RS485. They are similar specifications.
The leakage presented to the bus is listed in the datasheet (disabled for IOZ), and similarly Io(off) for power off case. Both indicate +/= 127uA for the driver.
This is a common usage.
One possible concern is location of the termination. Ideally they should be at the furthest endpoints of the bus. The stubs to the drivers/recievers should be kept short to minimize reflections.
If your system requires RS485, you will want to select another driver receiver pair that is RS485 compliant.
If this answers your question, please click "This Resolved My Issue"Regards,Wade
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 Wade Vonbergen:
Thank you for your reply. so AM26LV31/2 are only RS422 driver/receiver,so if we change our communication protocol to RS422 whether the application will work?Can RS422 support multiple drivers on the bus to single reciever?
if not can you suggest some RS485 driver/receiver from ti?
In reply to harikrishnan i:
RS422 and RS485 are similar. RS485 is more robust.
You can choose an RS485 device from this parametric tool. The list will include both RS422 and 485. Select from the ones with RS485 in the device description.
Use the filters on the left to narrow down choices.
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. 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.