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  • LMH6521: LMH6521 Serial interface file.

    Resolved
    Part Number: LMH6521 Could you please show me where I can download the file SPI-LMH6521_EVK_usersguide.tpf ? Thanks and Regards, Duong Tran.
    • Resolved
    • Answered

  • RE: LMH6521: no output

    Resolved
    Dear Hruday, Thanks for your patient guidance, the no output issue has been resolved. But now there is a new problem, the output signal is distorted. The signal generator setup is shown in Figure 1, and the oscilloscope shows severe distortion. I tried…
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  • LMH6521: Using dual LMH6521 in signal path

    Resolved
    Part Number: LMH6521 Other Parts Discussed in Thread: LMH6629 , LMH6517 , LMH6518 Hello, I would like some feedback in order to choose the best signal path for the following: Input signal is single-ended 5-100MHz, with amplitude ranging over 300uVpp and…
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  • LMH6521: Supply Current

    Resolved
    Part Number: LMH6521 Other Parts Discussed in Thread: LMH6522 Hi Team, The customer is looking for the disable and enable timing information in the Typical Characteristics section of the LMH6521 datasheet. The customer would like also to know if the supply…
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  • LMH6521: LMH6521 gain problem and the output questions

    TI Thinks Resolved
    Part Number: LMH6521 I use LMH6521 for the small siganl. the input signal is 300mV ( differantial ), and it's common mode voltage is 2.5V and LMH6521 output common mode voltage is 4.4V . is that correct ? the gain register is 0x80 , it means the gain…
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  • TINA/Spice/LMH6521: LMH6521 Spice model gives unexpected 1.5 dB gain valley between 100MHz and 400MHz

    Resolved
    Part Number: LMH6521 Other Parts Discussed in Thread: TINA-TI , Tool/software: TINA-TI or Spice Models This is the simulation graph with the LMH6521 ADS spice model from the following address: www.ti.com/.../snoj009 This is the gain curve for both the…
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  • TINA/Spice/LMH6521: Distinction between Spice model and simulation curve in datasheet

    Resolved
    Part Number: LMH6521 Other Parts Discussed in Thread: TINA-TI , Tool/software: TINA-TI or Spice Models I noticed a few distinctions where the simulation result of the spice model in ADS does not meet the curves in the datasheet. I would like to get clarified…
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    • Answered

  • LMH6521 lowest possible frequency.

    Resolved
    Other Parts Discussed in Thread: LMH6521 , LMH6517 I am in need of a dual programmable gain fully differential amplifier for using on an I/Q demodulator to provide some additional dynamic range but I need the frequency response to go down to at least 1…
    • Resolved

  • RE: lmh6521 gain issues

    Hi Robert, The LMH6521 gain is a voltage gain. (20*log(Vout/Vin)). Your calculated gains are correct. I still cannot figure out why the gain steps are 1/2 the expected gain change. I will review the schematic again and get back to you. I think…

  • LMH6521 control issue

    Other Parts Discussed in Thread: LMH6521 Hi, I'm using LMH6521 on a new board. I've some difficulties to control the amplifier in Serial mode. I can correctly write and read the device trough the SPI pins. Aftern enabloing the ENB or ENA i see…

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