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  • OPA627: Contemporary replacement for OPA111SM?

    TI Thinks Resolved
    Part Number: OPA627 Other Parts Discussed in Thread: OPA134 , OPA140 , OPA145 , LM124 Tool/software: Hello, I work on legacy avionics systems made by J.E.T. These originally used Burr Brown 2A180 / Analog Devices AD3417 precision op amps, which were subsequently…

  • OPA627: Perfect circuit for OPA627 and OPA134

    TI Thinks Resolved
    Part Number: OPA627 Other Parts Discussed in Thread: OPA134 , TPA6120A2 , OPA828 Hello, I would like to use the OPA627 and the OPA134 in optimal wiring (non inverting) in front of a TPA6120A2. Unfortunately, despite an intensive search, I did not find any…

  • OPA134: the low pass cutoff frequency of opa134

    TI Thinks Resolved
    Part Number: OPA134 Hi TI support team, I have a question on page 16 of the OPA134 datasheet. In the typical application, the low pass cutoff frequency is 30 kHz, but my calculation based on Formula (3) is about 21 kHz. I have simulated this circuit on…

  • OPA134: Device that vibrates the strings of a guitar

    Part Number: OPA134 Other Parts Discussed in Thread: LM386 , , ULN2004A , ULN2002A , ULN2003A , LM4871 I am creating a device that vibrates the 6 strings of a guitar. Let me explain what I have working, then let me explain why I need something better. From…

  • OPA134: What is the difference between amplifiers OPA134PA and OPA134PAG4 ?

    TI Thinks Resolved
    Part Number: OPA134 What is the difference between amplifiers OPA134PA and OPA134PAG4 ?
    • Answered

  • OPA134: Useful opamp for audio tone from microcontroller

    Resolved
    Part Number: OPA134 Dear, Now, I´m designing alarm tone generator with microcontroller. Microcontroller generate square signal output at 1450Hz. This output have a voltge divider and low pass filter for volume control and attenuation at frequencies outside…
    • Resolved

  • OPA134: Improve circuit for audio tone generator from microcontroller

    TI Thinks Resolved
    Part Number: OPA134 Other Parts Discussed in Thread: DRV135 , ISO7710 , TINA-TI Hi, In the last post "OPA134: Useful opam'p for audio tone from microcontroller", was unfinished and now I attach a new and improved design with Single-Channel Digital Isolator…
    • Answered

  • PCM1792A: Resistor values for OPA134 family for minimal distortion.

    Resolved
    Part Number: PCM1792A Other Parts Discussed in Thread: PCM1792 , OPA134 , , OPA1612 Figure 37 in the datasheet for the PCM1792 shows a typical OP-AMP setup to first convert the current output of the DAC to a voltage (U1 and U2) and then to add the two differential…
    • Resolved

  • RE: NE5534A: Does the NE5534APE4 exist?

    Kevin Yes, NE5534 and SA5534. For PDIP, OPA134 is the closest alternative. OPA134PA
    • Answered

  • RE: NE5532A: Substitutable op-amp for NE5532A/NE5534A

    Resolved
    Hey Mochi, Yes, the 2ch NE5532A is being updated to the 300mm wafer like the PCN doc mentions but the 1ch NE5534AD/ADR/AP is going to EOL on the Last date to order mentioned in the PDN doc. And yes, the recommended replacements are the OPA1677 and OPA134…

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