Hi,
The DAC8760EMC-EVM is basically one of the TI designs that we had described here:
https://www.ti.com/tool/TIPD153
Within the folder, you can find the BOM, schematics, and the gerber files.
There is also a guide describing this project here:
https…
Atsushi-san,
At this point, we do not have any tests results or reference designs for the DAC8742H regarding any IEC61000-4 tests with EMC immunity. The only reference design that incorporates any IEC61000-4 testing that we have done revolves around the…
HI Shibin,
As Kai has mentioned, on the current transmitter application, the main issue with the Howland Current source configuration is that could be sensitive to capacitive/inductive load and will likely become unstable while driving a long cable. There…
Hi,
The device could be experiencing significant stress as the inductive load is changing quickly. We generally recommend a strong protection circuit for this device to help protect the IOUT pins. Please see this reference design:
https://www.ti.com/tool…
To find reference designs leveraging the best in TI technology – from analog and power management to embedded processors, visit https://www.ti.com/reference-designs/index.html . All designs include a schematic, test data and design files.
I will…
Nakai-san,
I would say my suggestion is that the HART-IN pin is AC coupled to GND as we have demonstrated in the EMC/EMI reinforced reference design ( https://www.ti.com/tool/TIPD153 ), however this is not necessarily required. This is just the optimal…
Hello,
Please provide a schematic for your design for me to evaluate.
Otherwise, I suggest you consider referring to our reference design in TIPD153 ( http://www.ti.com/tool/TIPD153 ). Though the document does not publish surge test results it was exposed…
Gabriele,
The 15Ω resistor comes from the protection that was put together for a TI Design. There is a link below for the TI Design folder, and a link for the writeup of the TI design.
www.ti.com/.../TIPD153 www.ti.com/.../tidu011
The 15Ω resistors…
Hello Kazuya,
The DAC8750 is designed to operate under both IOUT open circuit and short circuit to ground conditions. When IOUT is open circuit, an IOUT fault alarm will be generated to notify the user of the fault. The device does not get damage regardless…
Yulei,
What is the DAC8760 hardware platform that this test is being conducted on? An EVM board? An EMC-EVM board? Custom hardware? If it's custom hardware, can you share the schematic? RF artifacts may not entirely be dependent on devices soldered to…
