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  • RE: LMH34400DRLEVM: Issue of the designing TIA and comparator (Using LMH34400, TLV3601)

    Resolved
    Hello Youngjoon, Thank you for sharing this update! I am glad you were able to find a working solution, that is really good to know about R5 (output resistor) affects on the comparator. Best Regards, Sima

  • LMH34400: Sensing Photodiode without Bias

    Part Number: LMH34400 Hello team, My customer would like to sense photo diode (transimpedance circuit) with single supply OPAMP. However, if the Opamp is operated with single supply, it will require bias voltage because if the photo current = 0A, then…

  • LMH34400: What is difference for LMH34400 output when enable / Disable Ambient Light Cancellation Mode ?

    Part Number: LMH34400 Other Parts Discussed in Thread: LMH6611 , Hi TI, What is difference for LMH34400 and LMH6611 output voltage when enable / disbale Ambient Light Cancellation Mode of LMH34400? According to LMH34400 data sheet : 7.3.3 Single-Ended…

  • LMH34400: Is it normal for LMH34400 always outputs 0.3V?

    Part Number: LMH34400 Other Parts Discussed in Thread: LMH6611 , Hi TI, Just get the LMH34400 + LMH6611 PCBA from menufactory, somes questions as below 1. Is it normal for LMH34400 always outputs 0.3V even there is no input 2. Is R25 = 49.9R OK for LMH6611…
    • Answered

  • LMH34400: Is this possible to use for a balanced photodetection?

    Resolved
    Part Number: LMH34400 Hi I want to know that the TIA "LMH34400" can be used for balanced photo-detection. Is it possible to use it in this application? if possible, I would like to amplify the signals coming from a balanced photo-detector. …
    • Resolved
    • Answered

  • RE: LMH34400: how to get the gain over 200kV/A with an additional amplifier?

    Resolved
    Hello Seongjin, Do you need more help on this topic? Best, Alec
    • Answered

  • RE: [FAQ] LMH34400: Giving Wall-E better eyesight with LiDAR

    Resolved
    If there are any questions, please reach out to the author, Rachel Scheller, via direct message or email (r-scheller@ti.com).
    • Answered

  • LMH34400: Is it OK for LMH3440 being a TIA to convert small current of photo diode to voltage

    Resolved
    Part Number: LMH34400 Is it OK for LMH3440 as a TIA to convert small current of photo diode to voltage? The output of LMH3440 is 1Vp-p, would you please suggesst me what kind of OPA is suitable to output 2V for this photo diode detection application
    • Resolved

  • LMH6629: Looking for a solution to work in open sunlight environment with Photodiodes and Transimpedance amplifier.

    TI Thinks Resolved
    Part Number: LMH6629 Other Parts Discussed in Thread: LMH34400 , LMH32401 , THVD8000 Tool/software: Dear Tech Experts, I am working on Gate Access Application using IR Light as a Transmitter and Photodiode as a receiver. I am able to send digital data…
    • Answered

  • OPA657: Simulation of transimpedance amplifier direction of current source

    Resolved
    Part Number: OPA657 Other Parts Discussed in Thread: LMH34400 Tool/software: Dear Team I need to design a circuit which help me to interface a current output sensor to ADC.The sensor is not ready yet.The IC design team is working on it.Only thing I know…
    • Resolved

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