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Showing 275 results View by: Thread Post Sort by
  • LMP7721: Electro-chemical sensor can not work with LMP7721

    jianxin ma
    jianxin ma
    Part Number: LMP7721 Tool/software: Electro-chemical oxygen sensor output connect to LMP7721, the output of LMP7721 is not right. (output is very high) Connect a current source to LMP7721, the output of LMP7721 is right. The output of electro-chemical…
    • 11 months ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • LMP7721: Who supports LMP7721 and similar femtoampere amplifiers?

    Samiha Sharif
    Samiha Sharif
    Resolved
    Part Number: LMP7721 Tool/software: Hi, I have a customer looking for a femtoampere amp similar to AD4530-1. Who would be the correct amplifier team applications engineer to loop into an email? Best regards, Samiha PADC Applications Engineer
    • Resolved
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: OPA928 and LMP7721: feedback cap

    Richard Payne
    Richard Payne
    TI Thinks Resolved
    Part Number: LMP7721 Tool/software: I have a trans-impedance circuit with 100M and 2G feedback. I was required to add a capacitor in a limited space. the value would be 1300pF (or 2700pf) and 560pF. I usually select polystyrene, which has been popular…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: LMP7721

    Yangyang Guan
    Yangyang Guan
    TI Thinks Resolved
    Part Number: LMP7721 Tool/software: Dear, My name is Yangyang Guan and I am from KU Leuven. I am currently conducting noise analysis on my device and interface circuit. Could you please provide me with the input-referred current noise spectrum density…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: Capacitance Problem when is power on first time has problenm second wotrks correct

    ALbert Tello
    ALbert Tello
    TI Thinks Resolved
    Part Number: LMP7721 Other Parts Discussed in Thread: ADS1255 , TINA-TI We use LMP7721 and AD1255 The issue when is poer on the first time the ADS1255 read woprng values when is power OFF and ON the system work well Our Application is for TIA , the…
    • 2 months ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: LMP7721 non-inverting input is not equal inverting input

    Bill Xu
    Bill Xu
    TI Thinks Resolved
    Part Number: LMP7721 Tool/software: hi, Dear PL engineer one thing need consult associated with LMP7721 as below. my customer want TI propose a circuit to testing x-ray energy. so I propose below charger amplifier. my customer then use LMP7721EVM…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: TIA circuit with T-shaped network outputs a large bias voltage

    Bing Zhao
    Bing Zhao
    TI Thinks Resolved
    Part Number: LMP7721 Tool/software: Hi team I design a TIA circuit with T-shaped network by LMP7721 to measure the pA CURRENT of ionization chamber. But there is a problem is that the circuit outputs a large bias voltage when input is 0. It is almost…
    • 8 months ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: LMP7721MAX/NOPB Usage problem

    yingjiao LI
    yingjiao LI
    Part Number: LMP7721 Tool/software: Hi After the LMP7721MAX/NOPB device was soldered, an abnormal output was found during no-load testing. Could you help me confirm if my testing method is correct? Could you also inform me of the correct testing method…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: heating of opamp encountered when providing power

    Adit Kokkeri
    Adit Kokkeri
    Part Number: LMP7721 Tool/software: Hi, I was facing the issue of the opamps heating when i just connect the power to it.I tried to test the functionality using it in non inverting mode and it did not show results. Also tried this with mutliple ics…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • LMP7721: LMP7721 Split supplies configuration

    Ken Armitage
    Ken Armitage
    TI Thinks Resolved
    Part Number: LMP7721 Other Parts Discussed in Thread: TINA-TI Hi I'd like to use the LMP7721 in a split supply configuration eg V = +2.5V and V- = -2.5V Will this work ok and what negative impact on performance can I expect...? Note - I tried…
    • over 2 years ago
    • Amplifiers
    • Amplifiers forum
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