BUF634A: Circuit in Application Note

Keith Barkley

Part Number: BUF634A
Other Parts Discussed in Thread: OPA2810

Tool/software:

In the Data sheet and the application note SBOA357, the reference a circuit suited to drive capacitive loads for ATE's.

However, neither the app note nor the data sheet discuss any way to determine the values for Rf and CF. Is there any guidance on these components?

3 months ago

+1 Anant Sinha 2 months ago

TI__Expert 3280 points

Hi Keith,

Rf and Cf value should be selected such tha you get a decent phase margin with the load condition of you application and the board parasitic of your PCB. To to check for that you can run a simulation in TINA for to check for the stability.

Regards
Anant

0 Keith Barkley 2 months ago in reply to Anant Sinha

Guru 42215 points

Thank you for that, but I cannot find the BUF634A or the OPA2810 in the TINA library.

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BUF634A: Circuit in Application Note