I need to design a universal analog input module .I have referred to CN-0209.But I could not understand the purpose of ADG442 used in the circuit.Can I get help?
Thank you so much.
If I double the circuit as you have mentioned in the previous reply(point number 2),then should I double the isolators too?
Attached herewith is the schematic for cn-0209 which I got from "design and integration files" provided in your site.Can you tell me the purpose of components marked D9,D1,D21,R13,etc used in the schematic?
In terms of isolation if you double the circuit, you would only need to isolate the chip selects for the second AD7193 and ADG1414. In fact if you do not plan to use the 2 interrupt lines from the ADT7310 (INT1, INT2) you could instead use these two channels for the 2 chip selects instead and wouldn't need any additional isolators. With INT1, INT2 not isolated you can still access the ADT7310's over-temperature information over SPI if desired (e.g. poll this information periodically).
In my project,I require atleast two UART and two CAN interfaces to enable the communication of the Analog Input Module with the CPU .So a controller having two UART and two CAN interfaces is necessary ,right?So can AduCM361 be used here?Is ADSP-CM402F/CM403F/CM407F/CM408F suitable here?Please help me regarding the microcontroller selection.
As I mentioned in my previous post,I require a microcontroller with atleast two UART and two CAN .So if I use the ADuCM361,the is it possible to add the required UART and CAN to the processor?
The ADuCM360 has UART but not CAN interfaces. Some options:
In relation to CAN I should mention the ADM3051/3052/3053/3054, which are a family of CAN transceiver products. The ADM3051 is a non-isolated transciever, and the rest of the family are all isolated transcievers. In fact the ADM3054 also provides isolated power using isoPower technology.