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Showing 8 results View by: Thread Post Sort by
  • REF6025: output capacitor

    Mitch Nelson
    Mitch Nelson
    TI Thinks Resolved
    Part Number: REF6025 Other Parts Discussed in Thread: ADS8887 , , ADS8881EVMV2-PDK , ADS8881 , REF6045 Tool/software: I am using the REF6025 and ADS8887 in a design, with the REF6024. The datasheet for the REF60xx series, on page 23, in section 9.3.4 Stabilitypage…
    • 6 months ago
    • Power management
    • Power management forum
  • Answered
  • RE: ADS1260: Question of parameters and Referece voltage.

    Bryan Lizon86
    Bryan Lizon86
    Resolved
    Hi Jax, Here are the answers to your questions: The ADS1260 can accept a 4.5 V reference voltage, so the REF6045 will work just as well as the REF6025. Therefore, if the REF6045 offers benefits to your system (larger VDIFF, lower dropout voltage), then…
    • over 3 years ago
    • Data converters
    • Data converters forum
  • RE: ADS8339: Reference buffer

    Keith Nicholas
    Keith Nicholas
    Hello Roy, The REF6045 would be the preferred reference for the ADS8339. The external ref buffer was recommended in the datasheet because the REF60xx did not yet exist. There are a couple of cases where you may want to use the REF5045 and an external…
    • over 5 years ago
    • Data converters
    • Data converters forum
  • Answered
  • RE: ADS8339: Reference Driver Circuit expressions

    Keith Nicholas
    Keith Nicholas
    Resolved
    Hello Daniel, The reference input on the ADS8339 is a switched capacitor, and requires fast dynamic currents to recharge during the conversion process. This requires not only a large charge reservoir (10uF cap), but also a high bandwidth amplifier to…
    • over 4 years ago
    • Data converters
    • Data converters forum
  • RE: ADS8861: Direct compatibility between LMH32401 and ADS8861

    Keith Nicholas
    Keith Nicholas
    Hello Andrianirina, You do not need R15 and can remove it from your schematic. All supply voltages can be set to 3.3V. Vod will need to be set to 0.75V. Vod can be generated using a similar circuit as Vref/2. With IDC_EN connected to ground, the LMH32401…
    • over 4 years ago
    • Data converters
    • Data converters forum
  • RE: ADS8887: Low Resolution Problem During ADC Read

    Keith Nicholas
    Keith Nicholas
    Hi Burcay, The reference buffer, OPA333, is probably the main source of noise that you see. This amplifier is not able to directly drive the reference input of the ADS8887, which consists of a switched capacitor requiring high speed dynamic currents…
    • over 6 years ago
    • Data converters
    • Data converters forum
  • Answered
  • ADS8881EVMV2-PDK: SNR has a huge gap between tested result and datasheet

    Lucas Ding
    Lucas Ding
    Resolved
    Part Number: ADS8881EVMV2-PDK Other Parts Discussed in Thread: ADS8881 , REF6045 , I met a new problem about the test of ADS8881EVMV2, and that is my SNR(tested in “ADS8881 GUI”) is much worse than datasheet. Here is my tested conditions: …
    • Resolved
    • over 7 years ago
    • Data converters
    • Data converters forum
  • REF6145 Turn-On Time in Datasheet versus Simulation Model in TINA-TI ?

    ngrkus
    ngrkus
    Other Parts Discussed in Thread: REF6145 , ADS8887 , REF6125 , REF6045 , REF6025 , LM4140 , MUX36S08 Hello, the REF6145 seems to be an ideal match for the ADS8887 I intend to use in my design. However I do require to have a startup time within the 0.1% error…
    • over 8 years ago
    • Power management
    • Power management forum

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