Hi Mohamad, Could you please provide 4 layer filled via details. Because we are planned 4 layer board. Signal Layer, Ground layer power layer and Signal layers. Thanks & Regards, Karthi ..read more

R157 i shorted and R160 is open ,c120 i shorted in my board .in the above message i attached a TSC file in that i modified the design according to my board. [quote userid="566862" url="~/support/amplifiers-group/amplifiers/f/amplifiers-forum/1343764/ths4541-ths4541/5144883#5144883"]Also, the parallel combination of R167 and R165 forms an Rg resistor value that is not equivalent to R161 which will cause a mismatch in gain setting. It is possible this could be part of the issue as well.[/quote] this i didn't understood can u explain? Please simulate the above TSC file and make the changes in tha ..read more

Hi, My apologies I have to correct my statement. I am looking for Avionics Grade which must be suitable for Air Platforms, Not Space Platforms/Programs Here in my case its DO-254 Compliance, which is widely followed for ASIC/FPGA/ICs. Kindly educate me here, when your customers chose parts for Avionics grade do they use AEC Qualified parts for adapting reliability, or will be using special space qualifying ICs ? Here i am aware that AEC is not a standard for Avionics / space, but people choose for better reliability i assume, so that they can qualify entire board for DO-254 screening ..read more

Hi, My apologies I have to correct my statement. I am looking for Avionics Grade which must be suitable for Air Platforms, Not Space Platforms/Programs Here in my case its DO-254 Compliance, which is widely followed for ASIC/FPGA/ICs. Kindly educate me here, when your customers chose parts for Avionics grade do they use AEC Qualified parts for adapting reliability, or will be using special space qualifying ICs ? Here i am aware that AEC is not a standard for Avionics / space, but people choose for better reliability i assume, so that they can qualify entire board for DO-254 screening ..read more

Thomas I heard back sooner than I expected. Input noise is 250uVrms with 3GHz bandwidth. My intuition is that adding an amplifier will minimize your jitter but I can connect you with our high speed amps experts if you wish to explore further. Adding a little gain also allows you the opportunity to filter the signal a bit. I assume at the least you can filter all the low bandwidth noise and maybe even bandpass filter the signal. Just let me know and we can take this offline and I will loop in the appropriate folks. Thanks again for sharing your very interesting application. Sounds like medical ..read more

Hi Geoff, The 13dBm spectrum on the right it looks like the device is clipping to me. Have you confirmed with an oscilloscope what the output looks like in that state and if it is clipping? From the left to right plot you increased the input power 2dB, but the output changed from 12.42dBm to 13dBm which isn't a 2dB increase, further telling me that it is clipping. Does the measured 13dBm look better at lower frequencies? With the 50ohm R34 and what I assume is a 50ohm spectrum analyzer, the measured 12.42dBm on the left would really be 18.42dBm on the output pin of the device or about 5.27Vpp ..read more

Hi Leo, This would be out of spec and could cause unpredictable behavior. You should consider using our digital isolation TI reference design which helps combat this: https://www.ti.com/lit/ug/tidu361a/tidu361a.pdf?ts=1713566587213&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FINA226 Best, Mohamed ..read more

I'm glad it worked out ..read more

Yes, you are correct. I chose A1 to be SCL and A0 to be SDA and no problems. Thank you ..read more

Hi Comi, I used the theoretical current register value for the math, to ensure I was using the correct shunt_cal: From this, I calculated the current register to be 10106. I then multiplied your Current_LSB by that value to get 0.4934A. I compared that to an Ohm's law value of 19.75mA / 40mOhm and got a similar value of 0.4937A. Best, Mohamed ..read more