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  • OPA145: Question about NC pins

    Resolved
    Part Number: OPA145 Tool/software: Hello team, Can NC pins(1, 5, 8) be connected to GND? I believe it could be possible, but can you double check there is no wire bonded to the die? Best Regards, Austin
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    • Answered

  • OPA145: CM voltage range (max) acc to DS: (V+)-3.5V (?) at supply +/-2.25 V

    Resolved
    Part Number: OPA145 Other Parts Discussed in Thread: OPA392 , OPA397 , OPA325 Acc to the datasheet the OPA145 CM voltage range (max) is (V+)-3.5V. However, the diagrams are stated at VCM = Vs/2 even for +/-2.25 V supply. I can't see how these specs are…
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  • OPA145: Random voltage at the Input and output of OPA145 when Input pin is floating

    TI Thinks Resolved
    Part Number: OPA145 Other Parts Discussed in Thread: TMUX6208 , OPA140 Hi, We have a circuit consisting of a OPAMP (OPA145) and AMUX (TMUX6208). The input of the OPAMP is connected to a mother-board test point. When there is no voltage from the mother…

  • OPA145: OPA145

    TI Thinks Resolved
    Part Number: OPA145 Hello, I would like to have voltage subtractor without using OPAMP. In the circuit attached below the voltage difference across A and B is 21V with point A=15V and point B=-6V. I want to develop a circuit that will have a voltage…

  • OPA145: OPA145

    TI Thinks Resolved
    Part Number: OPA145 Other Parts Discussed in Thread: OPA140 , TINA-TI Hello, I am trying to simulate an analog circuit with OPAx145 OPAMP. I have used the TSM file of OPA145 , however I am not getting the desired resut during DC analysis as well as the…
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  • OPA145: Charge amplifier for piezo sensors - weird output at low gain

    Resolved
    Part Number: OPA145 Other Parts Discussed in Thread: OPA2991 , TL072 , I'm trying to simulate a charge amplifier in LTSpice to be used with a piezoelectric sensor in audio range. Here are the resources for charge amplifiers: https://en.wikipedia.org…
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  • OPA145: Which datasheet specifications have been tested?

    TI Thinks Resolved
    Part Number: OPA145 Hello, I have a customer asking how to know which electrical specifications have been explicitly tested. My intuition is that anything specified with a min and/or max value has been tested for that parameter. Is this correct? What…
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  • OPA145: OPA145 behavior

    Resolved
    Part Number: OPA145 Hello, i got the OPA145 recommended from the TI team for biosignal processing. We used the amplifier as a voltage follower. we supplied the part with +6.6V and -3.3V (originally we wanted to use +-3.3V but then we found this forum…
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  • OPA145: OPA145 out put voltage required

    TI Thinks Resolved
    Part Number: OPA145 Hi Texas team, in OPA124UA is obsolete and texas suggest replacement is OPA145 but in OPA124UA output voltage mention 12 V and OPA145 output voltage mention " out put voltage swing from rail " = 250mV i need the output voltage…
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  • OPA145: OPA145 output swing

    Resolved
    Part Number: OPA145 Hi, do you know why the U2 in this circuit does not buffer the 2,9 Volts at +5Volts on the supply (see attached)? Thanks a lot for your help. Sebastien op amp.TSC
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