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ADS7263 some problem to know

Jacking Jin
Expert 1145 points
Other Parts Discussed in Thread: ADS7263, OPA2365

Dears,

In the datasheet, ADS7263's application circuit is used the OPA2365. Is it specify use theOPA2365 or the OPA what need satisfies performance requirement?

If the input signal is ±10V, I want to transform the signal to 0~5V, is there any specific request for the OPA?

Many thanks!

  • 0
    TI__Expert 5575 points

    Hi Jin

    Choice of operational amplifier depends on variuous design aspects such as input signal frequency, full scale input voltage, whether you need rail to rail I/O, bandwidth requirement and current consumption. Please let me know if you have any specific requirement on operational amplifier. OPA2365 has 50MHz bandwidth and has Rail to rail input/output with excellent THD performance and suitable for driving precision SAR ADCs.

    Regarding input signal conversion please let me know below

    1. Is input signal is +/- 10V single ended or differential

    2. Which configuration are you planning to use ADS7263: Psuedo differential or fully differential

    Thanks & Regards

    Abhijeet Godbole

  • 0 in reply to Abhijeet Godbole
    Expert 1145 points

    Dear Abhijeet,

    Thanks for your reply.

    The input signal is single end of multichannel. The signal frequency is about 50KHz.

    I want to use differential to process.