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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…
    • 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…
    • Resolved

  • OPA145: What is the maximum Input voltage noise density and Input current noise density of OPA145?

    TI Thinks Resolved
    Part Number: OPA145 Hi Teams, From the datasheet of OPA145, I can only find the typical value of Input voltage noise density and Input current noise density. What's the maximum of them? Why we didn't identify them in the datasheet? Thanks a lot…

  • OPA145: OPA145 Spice Model

    Part Number: OPA145 I am trying to use the OPA145, but I get this error message as part of the report when simulating. There are errors in the circuit. Simulation aborted OPA145.lb (333): .param Gain = 1e-3 *** ERROR *** Illegal subcircuit reference…
    • Answered

  • OPA145: Low temperature operation

    Resolved
    Part Number: OPA145 The data sheet for the OPA145 states that the Absolute Max operating temperature is -55C to 150C. The recommended operating temperature range is -40C to 125C. What differences are expected between the Absolute Max operating temperature…
    • Resolved
    • Answered

  • 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…
    • Resolved

  • RE: OPA145: OPA145 Spice model

    In the meantime Ken, I happened to have a file with the initial Rev A 2017 model,you might give that a try. OPA145 2017 model.TSC
    • Answered

  • OPA145: About the output Range of OPA145

    Resolved
    Part Number: OPA145 Hi,all I plan to use opa145 in my design to amplify the 3V signal to about 5V. But when i simulate in TI-TINA and use the the ±5V supply，the output of opa145 is limited to +2.25V。According to the datasheet，the maximum output should…
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    • Answered

  • OPA145: the voltage output swing from rail

    Resolved
    Part Number: OPA145 Other Parts Discussed in Thread: OPA992 , OPA2145 Hi, We want to know the voltage output swing from rail of OPA145 & OPA992, (when V+=12V/V-=-12V , RL=2kΩ) please help to check which one is smaller,thanks!
    • Resolved
    • Answered

  • OPA145: Slew Rate induced distortion

    Resolved
    Part Number: OPA145 Other Parts Discussed in Thread: OPA140 , OPA189 , OPA209 OPA145 is marketed as 20 V/µs slew rate. Figure 6-37 of the datasheet shows slew-rate induced distortion already at ~25 kHz for a 30 V supply. I am wondering if this is a…
    • Resolved

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