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OPA211-EP: A buffer amplifier selection for TLV2548-EP

Part Number: OPA211-EP
Other Parts Discussed in Thread: TLV2548-EP,

Hi Team,

I have question about how to select a buffer amplifier for TLV2548-EP. I used Analog engineer's Calculator and input some spec of the TLV2548-EP.

Could you check my filling in spec is correct or not?

In my understanding, we can choose buffer amp if the GBW is over than 5.58MHz. Therefore I select OPA211-EP. If you have any recommendation device, please let me know.

Thanks,

Uchihara 

  • Hi -san,
    Question: I have question about how to select a buffer amplifier for TLV2548-EP
     

    TLV2548-EP is only capable of ADC at a rate up to 200 kbps, which is approx. to acquisition time of 5usec. The input buffer drive for the part should be from 500kHz to 1MHz, and the calculator's result in BW is approx. 669kHz.  
    Best,
    Raymond