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  • OPA4227: Questions about OPA4277UA/2K5

    TI Thinks Resolved
    Part Number: OPA4227 Other Parts Discussed in Thread: OPA277 Tool/software: Hi team, This is FAE Jayden, ZTE is evaluating OPA4277UA/2K5 and they have some questions about this device: When used as a voltage follower, if the input is left floating, what…
    • Answered

  • OPA4227: OPA4227UA

    Resolved
    Part Number: OPA4227 Tool/software: Dear Team, Kindly advise correct MSL level for MPN# OPA4227UA as there is same MPN but two difference MSL found. MSL 3 mentioned in TI website but on the material MPN label MSL 2.
    • Resolved
    • Answered

  • OPA4227: Behavior in case of input condition is open

    Resolved
    Part Number: OPA4227 Hello, Let me confirm whether you have ever heard following condition. Could you confirm below and give me your opinion or comment ? * My customer use OPA4227. They use 4ch opamp with voltage follower. However, in their case, sometimes…
    • Resolved

  • RE: OPA4227: OPA4227/integrator/Quadrature Oscillator

    Shambhu Did you get the parts and build your circuit? Did this resolve the issue? If you have more questions just post another reply. Dennis
    • Answered

  • Dual and Quad, 8MHz and 60MHz, Low Noise Operational Amplifiers HA3-5104-5

    Resolved
    Other Parts Discussed in Thread: OPA4227 Hello, I am an electronic design engineer in France. I am reaching out regarding the use of your amplifier quad HA3-5104-5 (DIP14) in one of our products. We are seeking a replacement due to the imminent obsolescence…
    • Resolved
    • Answered

  • OPA4227: Product information related with Lifecycle

    Resolved
    Part Number: OPA4227 This is Joong-hyeok Lee, DMSMS researcher of Leoinnovision. Leoinnovision is the official EOL(End Of-Life)/obsolescence part manager of Korean Military (Army, Navy, Air force) and PLM agency of many defense industries (Hanwha, ADD…
    • Resolved

  • OPA4227 operating temperature and thermal-couple effects

    Other Parts Discussed in Thread: OPA4227 , OPA4188 We designed a circuit using two OPA4227 chips powered at +/- 15 V. The circuit diagram is as attached (U1-U4: OPA1, U5-U8: OPA2). We found both chips generated a lot of heat which caused significant drifts…

  • Difference between OPA4227 and OPA4209 op amp

    Other Parts Discussed in Thread: OPA4227 , OPA4209 What are the main difference including the internal designing of the ICs between the OPA4227 and OPA4209? We had checked the performance of both the ICs by doing simulations but found that both give the…

  • OPA37: Similar product with OPA37

    Part Number: OPA37 Other Parts Discussed in Thread: OPA4227 , OPA4228 Hi TI expert Please help to find a 4 channel amp and similar with OPA37. Best regards, Thomas
    • Answered

  • RE: Millivolt range AC to DC OP ?

    Resolved
    Hi Yordan, the OPA4228 is a decompensated version of the OPA4227 and is very much faster than the OPA4227. But the OPA4228 can only be used with a gain greater than 5. Theoretically, you could replace the first OPAmp in the circuit (U3 in my last simulation…

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