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  • THS4551: Differential Outputs are not differential

    TI Thinks Resolved
    Part Number: THS4551 Tool/software: I am using the developing board THS4551DGKEVM and have modified to have a single ended input and differential output. I followed the instructions provided with the development board. However, my output signals are not…
    • Answered

  • ADS127L11: Voltage reference changes are ignored when using the THS4551 FDA

    Resolved
    Part Number: ADS127L11 Other Parts Discussed in Thread: THS4551 Tool/software: Hi everyone, I'm currently encountering some strange behavior from the ADS127L11. I have a programmable voltage reference for the ADC, using a digital potentiometer and a…
    • Resolved
    • Answered

  • THS4551: How to calculate the cutoff frequency of an MFB circuit in a differential topology?

    Resolved
    Part Number: THS4551 Tool/software: The calculation for a single-ended MFB circuit can be referenced via this link: sim.okawa-denshi.jp/.../Fkeisan.htm However, for a differential MFB circuit like the picture shown below, how should the cutoff frequency…
    • Resolved

  • THS4551: Failure resulting in zero VOCM and/or reduced gain

    Part Number: THS4551 Tool/software: Hello, I have successive failures of small test boards that I made with the THS4551. The failure mode is that the VOCM, which is at mid supply by my design, is at 0V, clipping the output signal. Another failure mode…
    • Answered

  • THS4551: how to design a butterworth band filter with THS4551?

    Resolved
    Part Number: THS4551 Dear product line engineer one thing need supporting. how to use full differential amplifier to design a BPF filter such as below figure, my idea as below. 1. use TI filter design tools design a BPF first based MFB. 2. merge…
    • Resolved

  • THS4551: THS4551 Support

    Part Number: THS4551 Hi We are using THS4551IDGKT FDA and cascaded the FDA in 2 numbers . Please find the attached schematic . Is this cascading fine . We connected the Differential P to second differential Op amp input Postive and differential n to…
    • Answered

  • THS4551: Single ended source to ADS1288

    Resolved
    Part Number: THS4551 Other Parts Discussed in Thread: ADS1288 , THS4501 , , ADS1285EVM-PDK , ADS1285 , THS4561 , THS4567 , THS2630 , THS4130EVM , THS4130 , , ADS131E04 , THP210 , OPA2388 , ADS1274 , OPA2187 , TINA-TI , OPA210 , PSPICE-FOR-TI , OPA187…
    • Resolved

  • THS4551: Voltage Controlled Attenuator

    Part Number: THS4551 Other Parts Discussed in Thread: TIDA-01057 , THS4541 Tool/software: Hi Sir, because we seen the THS4551 soluiton in the TIDA-01057 reference design, for attenuator amplifier application. we want to know if Ti has solution can…

  • THS4551: THS4551 Support

    Part Number: THS4551 Hi All I have been using the Differential Op Amp THS4551IDGKT. Swapped the feedback resistor like positive input feedback resistor connected to positive output and negative input feedback resistor connected to negative output will…

  • THS4551: VS+ to VS- short failure mode

    Part Number: THS4551 Tool/software: Hi, I have been working with a PCB design that integrates a THS4551 amplifier (DGK Package), and have been seeing occasional failures on this IC. The design will work as expected temporarily, but when it is fully integrated…

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