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  • LMH32401: ALC

    Part Number: LMH32401 Hi Team, As for LMH32401' feature ALC, could you give more detail about this？ •Integrated ambient light cancellation What's the meaning of ambient light mentioned here? including the sunlight or the APD noise?

  • LMH32401: Reg. Gain setting of LMH32401

    TI Thinks Resolved
    Part Number: LMH32401 Hi, Can the gain of LMH32401 be changed dynamically while IDC_EN is LOW(enabled), by toggling the GAIN pin to HIGH or LOW via a microcontroller or any other digital circuit? thanks, Krishna

  • LMH32401: The photo diodes used to test LMH32401

    Part Number: LMH32401 In the LMH32401 EVM UG, on page 4, it wrote: "the input trace can be used to connect a common three-terminal photo-diode in a TO package. The photo-diode can be mounted over the edge of the board where the cathode can be connected…

  • RE: LMH32401RGTEVM: Thread : "LMH32401RGTEVM: Ringing in output of LMH32401" is locked, why ?

    another thing, I didn't have to use any JFET bootstrapping in my solution. and the IC I used , doesn;t have it either.

  • LMH32401: Alternate DC cancellation/cutoff

    Part Number: LMH32401 Other Parts Discussed in Thread: OPA857 Hi, Regarding ambient light cancellation, I see that the cutoff frequency is around 100kHz, which is way, way too much for me. I'm aiming for a cutoff frequency around 600Hz. In other…

  • LMH32401: How to connect negative voltage and APD with LMH32401

    Part Number: LMH32401 Dear Sir, How could I connect LMH32401 with a negative voltage and APD. Is the below circuit OK? The (Out+)- (Out-) is in accordance with the APD current, right? And could you please give me some guidance(with picture) if my connection…

  • LMH32401: the enable time is inconsistent when the gain resistance is 20k

    Part Number: LMH32401 Hi team, In the LMH32401 specification, the enable time is inconsistent when the gain resistance is 20k. The table writes a typical value of 850ns, but the given waveform is less than 100ns. Please help to confirm which one is correct…

  • LMH32401: Simulation of LMH32401 using TINA-TI

    TI Thinks Resolved
    Part Number: LMH32401 Other Parts Discussed in Thread: TINA-TI , Hi! I make a simulation of the LMH32401 with TINA-TI, to assess its performance, and I use the most recent model SBOMB18B.TSC proposed in the www.ti.com/.../LMH32401 I have some examples of…

  • RE: LMH32401: Simulation of LMH32401 with TINA-TI and its compatibility with ADS8861

    Hello Andrianirina, The main advantage of having a differential TIA such as the LMH32401 is the ability to interface with a differential ADC without having to add an extra FDA stage. Fully-differential amplifers also have the ability to have a larger…

  • RE: LMH32401RGTEVM: Ringing in output of LMH32401

    Hello Sima, Ambient DC light cancellation is needed so that we can avoid saturating the photodiode. If the photodiode gets saturated, it will not be able to detect the light pulse that we send. We tried with a simple op amp based TIA using OPA857 on a…

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