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Showing 26 results View by: Thread Post Sort by
    Answered

  • DAC7551-Q1: Not seeing expected Vout

    Resolved
    Part Number: DAC7551-Q1 Other Parts Discussed in Thread: REF3125 , DAC7551 Hi, I am working with the DAC7551-Q1. Attached is the datasheet: https://www.ti.com/lit/ds/symlink/dac7551-q1.pdf?ts=1592428323142&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct…
    • Resolved

  • LM4120: LM4120 Notation

    TI Thinks Resolved
    Part Number: LM4120 Other Parts Discussed in Thread: REF3125 , REF3425 , LM4128 , LM4132 Hello, In LM4120 part, there are two notations, for example, - LM4120AIM5-2.5 and - LM4120IM5-2.5 etc. I understand that LM4120AIM5-2.5 part is A grade and it verifies…
    • Answered

  • ADS1274: Unable to achieve number of Samples per second

    Resolved
    Part Number: ADS1274 Other Parts Discussed in Thread: REF3125 2 ADCs are used is daisy chained configuration Mode: Low speed CLKDIV: 1 Fclk: 4.2MHz Sclk: 2.56MHz Data output format: SPI TDM Fixed These are the settings, but we get only 15 samples per…
    • Resolved
    • Answered

  • ADS1271 Clock Source

    Resolved
    Other Parts Discussed in Thread: OPA350 , REF3125 , ADS1271 Dear All, I am a student and making a project. I am using ADS1271 and made the design regarding to datasheet. I used OPA350 and REF3125 for reference voltage. Applied 1.8V for DVDD. There is 27MHz…
    • Resolved
    • Answered

  • RE: ADS1258 - Questions about Reference Circuit in Datasheet

    Resolved
    James, Sorry I didn't get to this earlier, but I was out of the office on Friday. Here are my answers: 1. I'm not sure I understand this question. Let me explain it this way, and hopefully this answers this question. In the setup in Figure 67,…
    • Answered

  • RE: ADS7959's reference input

    Resolved
    Hello Pinar, The reference input to ADS7959 is not internally buffered. The external circuit will be presented a switched cap load. The worst case switch cap load is expected to be 8.2pF. If you plan to use resistive divider to generate 2.5V, I will…
    • Answered

  • RE: Quad OPA4209 heat problem

    Resolved
    I understand your dilemma. I am hoping that the REF3125 solves your problem. It seems to be a better reference as well.
    • Answered

  • ADS1246 RDATAC consistent reading issue, spike every couple of minutes.

    Resolved
    Other Parts Discussed in Thread: ADS1246 , REF3125 Hi, I having an issue with continuous ADC reading. Spike of data every couple of minutes, in both direction, positive and negative deviation from the real level of input signal. There is the same spike if…
    • Resolved

  • ADS1158 Specification Errors?

    Other Parts Discussed in Thread: REF3125 , ADS1158 With regards to page 42 & Figure 54 of the ADS1158 specification. Note the hookup to the reference REF5040 and buffer (although the text says REF3125). In Figure 54, it shows a 100uF capacitance on…
    • Answered

  • RE: ADS8505 saturates before +/ 10v input.

    Resolved
    Hi Somnath, Ideally pin 5 and pin 2 of the ADS8505 are directly connected to a local ground plane along with pin 14. Your external reference has to go to pin 3, which it seems to be doing in the schematic you posted the other day. Ideally that would be…
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