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  • LOG114: LOG114EVM - Can we somehow modify it to accept 0 - (-)100uA input.

    Part Number: LOG114 Is it possible to modify the LOG114EVM for negative input current. Our PMT produces negative current and we bought LOG114EVM's for processing but realized after we need negative current input supported, can we modify via Vref or Vbias…

  • LOG114: TINA-TI simulation error

    TI Thinks Resolved
    Part Number: LOG114 Other Parts Discussed in Thread: TINA-TI , OPA2335 Hi Team, Can you please help us with our customer's inquiry below. I would like to ask about the logarithmic amplifier log114 datasheet, which converts negative current into positive…

  • LOG114: where is pad connected?

    TI Thinks Resolved
    Part Number: LOG114 Hi When Log114 uses dual power supply, is the pad at the bottom of the chip connected to V- (pin6) or GND?

  • LOG114: Knee in slew-rate at output

    TI Thinks Resolved
    Part Number: LOG114 Dear E2E team I'm evaluating LOG114 for an application that requires some bandwidth. The test circuit is as follows (Vsupply = 5 V, bypass capacitors not depicted but present): The measured response is shown in this screenshot…

  • LOG114: Is it possible that input type is voltage?

    Part Number: LOG114 Other Parts Discussed in Thread: TL441 Hi team, Is LOG114 possible that input type is voltage? Are there any logarithmic amplifier which input type is voltage? Best regards, Shunsuke Yamamoto

  • LOG114: problem

    TI Thinks Resolved
    Part Number: LOG114 Dears， Pin 12 and pin 13 have the same voltage, and pin 14 and pin 15 have the same voltage When the voltage of pin 12 and pin 13 is 3.55v, the voltage of pin 14 and pin 15 jumps to 4.99v Now, 6 chips are tested, and 2 of them can…

  • LOG114: Reference Voltage Current Limits

    TI Thinks Resolved
    Part Number: LOG114 Hi, What is the max current that can be drawn from the Vref pin on LOG114?

  • LOG114: Schematic review

    TI Thinks Resolved
    Part Number: LOG114 Hi, Could you please review the schematic for our customer as attachment? Thank you so much! Kevin Xiong

  • LOG114: Vref voltage incorrect in SPICE model

    TI Thinks Resolved
    Part Number: LOG114 Other Parts Discussed in Thread: TINA-TI When simulating with the LOG114 spice model, the reference voltage is appearing as 1V, while the datasheet clearly states it should be 2.5V
    • Answered

  • RE: LOG114: Dynamic range and resolution ?

    Resolved
    Hi PY, I am still not completely sure how the customer intends to apply the LOG114 in the application. Guessing, my thought is that the power source would be applied to a 600 Ohm load, and the resulting current would be the input current to the LOG114.…

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