Hi Naig,
Please check to make sure that you've a clean GND and supply. It's very common to let noise couple in through supply pins.
Next, note that resistors are a good source of noise in your circuit. And you're using fairly big gain setting…
Hello Eduardo,
We have several TI designs, but are all based off a similar PIR circuit.
The most interesting to you would be the TLV8544 "Boost" PIR demo:
BOOSTXL- TLV8544PIR TLV8544 Quad Nanopower Op amp PIR Motion Detector Demonstration Module…
Hello Yang,
Please provide me your simulation file, I will check it for you. You may also want to use the attached TINA simulation file as a starting point and compare it with yours.
The circuit has been implemented and tested in a demonstration board…
Thanks a lot for all of your responses. For final, i just want to know the tpa3255's input impedance, if it is possible without any inconveniance to combine tpa3116 and tpa3255 in the same system by synchronizing them (even if it's explained in the "…