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Showing 28 results View by: Thread Post Sort by
    Answered
  • OPA691: Opa691 noise model seems not correct

    Jean-Luc Bolli
    Jean-Luc Bolli
    Resolved
    Part Number: OPA691 Other Parts Discussed in Thread: TINA-TI Tool/software: Hello, I am using le OPA691 Spice model with the LTSpice to simulate my design. All seems to work correctly, except the noise behaviour. Simulating a non inverting configuration…
    • Resolved
    • 8 months ago
    • Amplifiers
    • Amplifiers forum
  • OPA691: Thermal Values

    Sean Grahne
    Sean Grahne
    TI Thinks Resolved
    Part Number: OPA691 Other Parts Discussed in Thread: OPA301 Tool/software: I see on the data sheet that for device D the theta JA value is listed as 125 C/W what are the theta JB and theta JC values? Thanks
    • 6 months ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA691: OPA691: Optimum value of the feedback resistance for ±3.3V supply rail.

    Shobha Krishna Rao
    Shobha Krishna Rao
    Resolved
    Part Number: OPA691 Other Parts Discussed in Thread: OPA684 1. The datasheet of OPA691 mentions the optimum value of feedback resistance that ensure reasonably good stability and bandwidth. The specs mentioned are for ± 5V rail. Will it hold good for…
    • Resolved
    • over 4 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA691: opa691

    Naveenkumar K
    Naveenkumar K
    Resolved
    Part Number: OPA691 Other Parts Discussed in Thread: TINA-TI hi am naveen am design a bandpass filter using opa691 in that i want single supply only can you share the single supply design file with filter circut
    • Resolved
    • over 6 years ago
    • Amplifiers
    • Amplifiers forum
  • OPA691 A Schematic Diagram in Datasheet

    user4026288
    user4026288
    Other Parts Discussed in Thread: OPA691 Hello, Im trying to design an amplifier using OPA691. But a schematic diagram in OPA691's datasheet is a bit confusing. It's in page 11, Figure 1. I can not explain why Rf is connected to the -Vs. Thanks…
    • over 8 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • coverting spice model to ADS model for OPA691

    sunryoul kim
    sunryoul kim
    Resolved
    Other Parts Discussed in Thread: OPA691 Hi everyone, I'm trying to simulate circuit based on OPA691 operational amplifier in ADS2015.01. I'm using official PSPICE model downloaded from: www.ti.com/.../getliterature.tsp Unfortunately, it seems that…
    • Resolved
    • over 9 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • Answered
  • THS3121: New and alternative OPAMP parts

    d_zero
    d_zero
    Resolved
    Part Number: THS3121 Other Parts Discussed in Thread: THS3470 , THS3491 , , OPA891 , OPA2675 , OPA2891 , OPA691 Dear Team, we have a 10+ year old shematic that uses varius OPAMPS, we would like to select newer and better devices, please can you propose…
    • Resolved
    • 1 month ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • Device souring

    Allen Lu
    Allen Lu
    Resolved
    Other Parts Discussed in Thread: OPA691 hi team: Can you help to promote a Amp that can satisfy with below requirement? Tks! The reference frequency is 10MHz, and I want to find a reference amplifier that does not affect the phase noise. Reference…
    • Resolved
    • over 3 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA695: Pspice model for RF simulation

    wu jianhui
    wu jianhui
    Resolved
    Part Number: OPA695 Other Parts Discussed in Thread: TINA-TI , OPA691 , OPA355 Hello, recently I'm making a negative impedance circuit with OPA695 (working frequency at 20MHz). I imported the OPA695 Pspice model to the ADS 2020 update2.0 for PCB electromagnetic…
    • Resolved
    • over 3 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • RE: THS3121: Oscillations when THS3121 is used as voltage follower

    Michael Steffes
    Michael Steffes
    Resolved
    hello guys, I had all these files set up for the next article using the OPA691 model, easy to drop in the THS3121. Looks like it takes about 40pF on the output to push it hard into instability, kind of a cliff actually with that resonant output impedance…
    • over 6 years ago
    • Amplifiers
    • Amplifiers forum
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