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  • OPA1637: If there have some solutions about the Vout glitch absorption when OPAmp power down?

    Part Number: OPA1637 Other Parts Discussed in Thread: OPA1622 , INA1620 Are there any audio amplifiers that have the power down absorption and detection feature? For example, it can even cut off the post circuit and contain the absorbent resistor. Does…

  • TLE2426: TLE2426 is sufficient for supply 8 of Opamp(OPA1637) VOCM?

    Part Number: TLE2426 Other Parts Discussed in Thread: OPA1637 Hello I am Jung I am using TLE2426 for DAC to supply 8pcs of OPA1637 for VOCM.(Mid bias) I found a problem which is the output of TLE2426 is only 0.7V.(I expected 2.5V because input voltage…
    • Answered

  • OPA1637: opa1637

    Resolved
    Part Number: OPA1637 Other Parts Discussed in Thread: PGA2500 , , THP210 , PGA2505 , OPA1632 Hi, I am trying to buffer the pga2500 to an ADC with OPA1637 I want the pga2500 to be buffered with an op amp that is setup with low pass neg feedback filter > 1…
    • Resolved

  • OPA1637: schematic review

    Part Number: OPA1637 Hi, Our customer is using OPA1637. When the input signal is below 1V, the output signal is normal. But when the input signal is more than 1V, the output signal is distorted. Please see the schematic as attachment. Could you please…
    • Answered

  • OPA1637: choice for Vocm in the datasheet

    Resolved
    Part Number: OPA1637 Other Parts Discussed in Thread: PCM1795 Hello, I have a question about the schematic on the first page of the OPA1637's datasheet (I'm looking at the August 2020 revision) What is the reasoning behind using an output common…
    • Resolved

  • OPA1637: OPA1637 Package

    TI Thinks Resolved
    Part Number: OPA1637 Hi team, Do OPA1637DGKR and OPA1637DGKT have the same package?
    • Answered

  • OPA1637: PD input termination

    Resolved
    Part Number: OPA1637 Hi team, My customer is using the OPA1637 in an audio preamp, and the datasheet is giving conflicting information on how to terminate /PD input (powerdown) when powedown is not used. Some examples and text tell them to tie to V+ rail…
    • Resolved

  • OPA1637: Input current noise model testing, 1/f corner seems off on the current OPA1637 model,

    Part Number: OPA1637 Other Parts Discussed in Thread: THS4561 Morning Iwata-san if you are still looking at this, Well this noise model issue has been continuing over on the amplifier forum comparing the simulated input current noise on the THS4561…
    • Answered

  • OPA1637: input voltage noise model

    Resolved
    Part Number: OPA1637 Other Parts Discussed in Thread: OPA1656 Reviewing this device for some audio work, the front page noise plot is ok, kind of a high noise corner but good for JFET, Here is that from the front page, a little over 30nV at 10Hz, The…
    • Resolved
    • Answered

  • RE: OPA1637: Design a balanced audio signal receiver circuit for ADC(AKM AK5554) by using OPA1637

    Resolved
    Hi Jung, I have modified the simulation with respect to the 8Vpp differential input and required 5.6Vpp differential input voltage range of AK5554. OPA1637Bessel-LPF+AK5554_Diff8Vpp.TSC Regarding the input DC blocking caps, it depends on the system requirement…

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