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OPA211: OPA211AIDRGT

Mark Marshall
Prodigy 10 points
Part Number: OPA211
Other Parts Discussed in Thread: LM20,

Hi I'm looking for an equivalent foot print to the OPA211DRG in a SOT but with Rail to Rail input capability or at least 0.3V to 2.5V to cover the temperature range of an LM20.  The board has been designed and the footprint made.  hopeful there is a drop in replacement, but struggling to find anything as the TI site finds very limited in the SON package of the DRG.

Any thoughts?

  • 0
    TI__Guru* 93105 points

    Hello Mark,

    The OPA211 is a very low noise, wide bandwidth precision op amp as you are surely aware. We have a very limited number precision op amps available in the SON package, and they don't achieve the same level of noise and wide bandwidth of the OPA211. What supply voltage are you using in the application? Are the very low noise and bandwidth of the OPA211 required for this replacement op amp in a SON package?  

    Another possibility is an op amp from TI's High-Speed Amplifiers group. Their op amps have very wide bandwidth some of which have low noise as well. I did a quicks search on their products and see some list them with a WSON package. It is a 3 x 3 mm package as well, but may differ from the SON is some other dimensions. The High-Speed Amplifiers forum may be able to identify an op amp that fulfills your circuit's op amp performance requirements.

    Regards, Thomas

    Precision Amplifiers Applications Engineering