Easy.
Equivalent negative capacitance at the terminals of this thing is -Ceq = C * (R2/R1).
However, GBW of this op-amp shall be well above (your frequency range) * ((R2+R1)/R1). For example, if R2=R1, and your range is 20MHz, I would be using an op…
Hi James,
I have less confidence whether we have support for EP mode on AM67A EVM. Still awaiting a response from our development team.
However, I have found in schematics that "ONLY RC MODE is supported". So it could be that the TRM has some artifacts…
The unexpected sinewave at your output could be due to op-amp oscillation from inadequate power supply decoupling, layout issues, or feedback network problems; it might also result from ground loops or electromagnetic interference (EMI) from nearby…
Hello KUD,
This script must be used if you have a USB ethernet adapter ( like https://a.co/d/96v3oGM ) connected to the J721S2 EVM board's USB 3.1 Type C port using the USB C adapter ( https://a.co/d/3JfqpMu )
The dip switch setting that is important for…
Hi Sai,
The schematic looks fine. For the layout, The only major thing I would change is the thermal pad on the layer with the amp. Given this is a pad down device, the largest impact on thermal performance is the ground layout near the device. Your ground…
Hey David,
Have you looked at the OPA1656? This is one of our modern Burr Brown devices that has ultra low noise and has great THD specifications. It does not come in the dip package however we do have coupon board that converts into pins that can be…
Hi Praveen,
Could you share with me which Processor SDK Linux version is being used, and also share the output from dmesg? For example, piping the output from dmesg to a text file and sharing it will be great "dmesg > dmesg_output.txt".
…
Thank you for the fast response and advice to use the DS values.
Inductor rating is Isat_max = 9.3A, Irms_20C = 8.5A, DCR=14.4 mR.
TPS61178 current limit R= 180k --> 4 amp max. In the full circuit, Iout max will be only 1.5A.
I have been testing at…
I understand this. My current operation is to add the loop_forever function to line 55, then download the file generated by the command makefile to the hardware through the serial port, and then change the dip switch to OSPI mode. At this time, since the…
Hey Jukka,
You can force the COMP pin of the device to use your own input. Please make sure that the maximum voltage of the pin is respected We generally suggest placing the VSENSE close to the voltage reference so the error amp will not fight as much. …