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  • OPA1678: High-frequency noise and muffled sound from electret capsule with OPA1678 preamp at 5V supply

    Resolved
    Part Number: OPA1678 Other Parts Discussed in Thread: OPA1622 Tool/software: Hello, I am designing a preamplifier for an electret condenser microphone using an OPA1678 . I am powering the circuit from a 5V lab power supply . After amplification, I…
    • Resolved

  • OPA1678: OPA1678 TINA model

    TI Thinks Resolved
    Part Number: OPA1678 Other Parts Discussed in Thread: OPA1692 , Tool/software: Hi Team, Do we have the OPA1678 TINA model? I can't find it in the TINA. We would like to replace OPA1692 by using OPA1678. 5228.OPA1692 differential 01192025.TSC …

  • OPA1678: microphone output amplification

    TI Thinks Resolved
    Part Number: OPA1678 Tool/software: hi, want to amplifies the output of microphone AOM-5024L-HD-R am planning to use OPA1678 and got some circuit from datasheet .how that below circuit will work for microphone.
    • Answered

  • OPA1678: Input current limiting resistor.

    Resolved
    Part Number: OPA1678 Other Parts Discussed in Thread: OPA205 , OPA206 , RC4580 Tool/software: I'd like to consider using OPA1678. However, when using it with a voltage follower, I cannot put in a current limiting resistor due to input amplitude issues…
    • Resolved
    • Answered

  • OPA1678: Using OPA1678 to drive a piezoelectric buzzer

    Resolved
    Part Number: OPA1678 Other Parts Discussed in Thread: TLC555 , OPA192 Tool/software: Hi Team, As shown in the diagram below, I would like to use two OPA1678 operational amplifiers to drive a piezoelectric buzzer. One of them will serve as an inverting…
    • Resolved

  • OPA1678: OPA1678 reference design

    Part Number: OPA1678 Other Parts Discussed in Thread: OPA1637 , INA1650 , LM27762 , OPA1656 Hi Team, I would like to ask how to connect the IC audio output to the OPA1678 with differential left and right channels? Is there a reference circuit? Thanks…

  • OPA1678: TINA simulation

    TI Thinks Resolved
    Part Number: OPA1678 Other Parts Discussed in Thread: TINA-TI Tool/software: Hi Team, I am trying to simulate the AC analysis via TINA. But met the issue. How can I use the differential signal as input? opa-filter - autosave 25-01-23.TSC …

  • OPA1678: TINA simulation (cut off frequency and waveform)

    Part Number: OPA1678 Tool/software: Hi Team, My customer give me the below circuit and would like to get the transient waveform and frequency response. I tried to use TINA to build the model. Can you help check it and modify if there is something…
    • Answered

  • OPA1678: Replace OPA1678

    Resolved
    Part Number: OPA1678 Other Parts Discussed in Thread: OPA2836 , OPA2328 Hi, I am using OPA1678 and noticed that the output voltage is less than 1V for frequencies above 1MHz. Could you tell me which IC can maintain the output voltage above 1V up…
    • Resolved

  • OPA1678: single end to difference circuit matched with ADC5140

    TI Thinks Resolved
    Part Number: OPA1678 Other Parts Discussed in Thread: TLV320ADC5140 , TPS65131 , TPS62933 Tool/software: Hi team, My customer use OPA1678 to get single end to difference circuit, input is wired microphone audio, and output audio data is changed to…

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