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Showing 25 results View by: Thread Post Sort by
    Answered
  • RE: OPA1642: impedance detector circuit - issue can i use opa1642

    Alexander Davis
    Alexander Davis
    Resolved
    OPA2134 would also be a good choice, but compared to the AN4558 specifications may still be overkill. In this application, you could probably get away with something like a TL072 or other general-purpose op amp. It actually looks like the least expensive…
    • over 4 years ago
    • Audio
    • Audio forum
  • RE: OPA1641: OPA1641 Application

    Hardy Ma
    Hardy Ma
    Hi Alex, Thank you for reply! Today, we use TI's 3 different kinds of op amp to simulate, the models are TL971, OPA1641, RC4558. From the simulation results, RC4558 is ideal, but the output is only 3.5V. Is it possible to recommend a op amplifier that…
    • over 4 years ago
    • Audio
    • Audio forum
  • RE: OPA differential input protection and range

    Ron Michallick
    Ron Michallick
    Bell, If "OPA" can mean op-amps from other prefixes other than OPA series, then these are high voltage op amps with high VID tolerance (and low cost). TS321, LM358, LM324 family of devices. TL031, TL061, TL071, TL081 where 1 = {1,2,4} RC455…
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • RE: Unused op-amp in RC4558P

    Ron Michallick
    Ron Michallick
    Resolved
    Pual, Every op amp is different so the 'best method' for least chance of problems as seen in blog doesn't always give the lowest ICC. For low ICC keep the red transistors off. This is output 'railed' high (use no load of course). …
    • over 7 years ago
    • Audio
    • Audio forum
  • Plz explain this buffer circuit ...

    Soumitra Bhattacharjee
    Soumitra Bhattacharjee
    Other Parts Discussed in Thread: RC4558 Hi I'm stuck trying to understand a part of this and would appreciate any pointers from you. This is a working circuit and reproduced as it is. a) The input 1uF capacitor (connected in reverse) - this is a polar…
    • over 8 years ago
    • Amplifiers
    • Amplifiers forum
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