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Showing 89 results View by: Thread Post Sort by
    Answered
  • OPA838: OPA838 Power-Down feature

    Vzaz
    Vzaz
    Resolved
    Part Number: OPA838 Tool/software: Hi, Could you please confirm the OPA838 power-down operation? The question is whether this is simply a reduction of supply current or an actual disable with output disconnect. Is the output still driving while…
    • Resolved
    • 6 months ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA838: OPA838IDBV

    derek murison
    derek murison
    Resolved
    Part Number: OPA838 Other Parts Discussed in Thread: TINA-TI , , OPA836 Tool/software: OPA838IDBV used with a 5V single supply. 5V confirmed at pin5 & 6. Vref is disconnected from any other circuitry. A simple circuit here, but it doesn't work. 2…
    • Resolved
    • 1 month ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA838: PCB layout for OPA838

    Behnam Madadnia
    Behnam Madadnia
    Resolved
    Part Number: OPA838 Dear all, In the datasheet of the OPA838 there are the following recommendations for PCB layout: 1.Signal routing must be direct and as short as possible into and out of the op amp. 2. The feedback path must be short and…
    • Resolved
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA838: Choosing isolation resistor for OPA838 output

    Behnam Madadnia
    Behnam Madadnia
    Part Number: OPA838 Dear all, I want to choose an accurate vale for an isolation resistor for my OP-AMP (OPA838), based on the datasheet OPA838 is very sensitive to capacitive loads and for make the system robust to instability we need to add an isolation…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA838: Transimpedance amplifier with BPW34 (1us pulse width)

    Simon Hackenberg
    Simon Hackenberg
    Part Number: OPA838 Other Parts Discussed in Thread: TINA-TI Tool/software: HI, I am implementing a transimpedance amplifier based on the OPA838. I am using a BPW34 and would like to detect and evaluate a signal of 1MHz. The approximate current flowing…
    • 2 months ago
    • Amplifiers
    • Amplifiers forum
  • OPA838: Connecting the output of the OPA838 to a second stage amplifier

    Behnam Madadnia
    Behnam Madadnia
    TI Thinks Resolved
    Part Number: OPA838 Dear All, I have designed a transimpedance amplifier as follows: I leaned that loading effect can be detrimental to OPA circuit and is very important to be considered. I want to consider and design the output circuit in my…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA838: Transimpedance amplifier with OPA838 - supply voltage

    Behnam Madadnia
    Behnam Madadnia
    TI Thinks Resolved
    Part Number: OPA838 Other Parts Discussed in Thread: OPA837 , OPA856 , OPA383 Dear all, I have used OPA838 to design an transimpedance amplifier. This design will be used as to convert the output current of an ultrasonic transducer to voltage, the…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA838: Design receive path circuit in ultrasonic front-end

    Pierpaolo Guida
    Pierpaolo Guida
    Part Number: OPA838 Tool/software: Hi, I would like to know which is the best solution to reduce noise, interference, non linearity, better SNR to improve signal of the ultrasonic sensor. I should use one of this part number of the SECO Sensor: SC042…
    • 3 months ago
    • Amplifiers
    • Amplifiers forum
  • OPA838: Transimpedance amplifier ringing and issues

    Adelson
    Adelson
    Part Number: OPA838 Tool/software: Hi, I am implementing a transimpedance amplifier based on the OPA838 and I am experiencing oscillation. The following circuit (figure 1) has been implemented based on the sensor specification and the Application and…
    • 5 months ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA838: Calculation of the transimpedance amplifier

    Behnam Madadnia
    Behnam Madadnia
    Resolved
    Part Number: OPA838 Tool/software: I have basic questions about the following configuration of an Op-Amp, which is transimpedance amplifier , I would appreciate your help to help me understand this: First question, considering that the…
    • Resolved
    • 8 months ago
    • Amplifiers
    • Amplifiers forum
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