# Regular Meeting (2022.6.27)
* zybo-z7
* Tried build system without PL(FPGA Area)
* [Refer to here](https://coldnew.github.io/d9dfdd56/)
* Can't connect
* 
* Simulation fanout buffer(OPA)
* 
* [Refer to here](https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1111959/lmh6722-fanout-analog-signal/4122595#4122595)
* 8 channels
* [Current Feedback Amp(CFA)](https://www.ti.com/lit/an/slva051/slva051.pdf?ts=1656257334077&ref_url=https%253A%252F%252Fwww.google.com%252F)
* Some concepts are different from VFA(Voltage Feedback Amp):
* Input impedance (ideal):
* CFA: 0
* If we have requirement which input impedance is inf, than CFA may not be appropriate
* VFA: inf
* Stability:
* Normally unity gain stable
* Minimum impedance in feedback component required for stability
* Tina-TI (Windows only)
* Does not include layout(trace) information

###### tags: `Regular Meeting` `DeWei`