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  • INA149: The design issue for INA149

    TI Thinks Resolved
    Part Number: INA149 Tool/software: Hi, Pleaes confirm if INA149 can support over current protection circuit for 24VAC system, thanks.

  • INA149-EP: INA149 as current sensor

    TI Thinks Resolved
    Part Number: INA149-EP Other Parts Discussed in Thread: INA149 Tool/software: Hi, I am trying to use INA149 as a current sensor. I preferred INA149 for its high VCM capability. I want to use an unidirectional power supply, VCC= +5V. This is the model…
    • Answered

  • INA149: INA149 Simulation Model Inquiry

    Resolved
    Part Number: INA149 Tool/software: I received the INA149 simulation model from the web and ran it. The offset voltage is listed as 350uV in the datasheet as a typical value. The result is 50uV for the TINA model and 60uV for the PSpice model. There is…
    • Resolved
    • Answered

  • INA149: INA149 saturation during half cycle with 0 to 180V common mode voltage

    Resolved
    Part Number: INA149 Other Parts Discussed in Thread: , TMCS1133 Tool/software: Hello, I have an issue that look like a saturation using the INA149 in an in-line full bridge current measurement. I apply 180Vpk AC to a 50 Ohm load and it give me 3,6A peak…
    • Resolved
    • Answered

  • INA149: Battery cell voltage monitoring

    Resolved
    Part Number: INA149 Other Parts Discussed in Thread: TPS65133 , BQ76942 Tool/software: Hi, I would like to use multiple INA149s to monitor the cell voltages of a 9S battery pack (3.35V - 4.45V/cell), by shifting the cell voltages down to a GND reference…
    • Resolved

  • INA149: Request for the appearance differences of P/N INA149AIDR

    TI Thinks Resolved
    Part Number: INA149 There is no chamfering on the top side of the device's exterior. Could this be due to a difference in the new manufacturing process?
    • Answered

  • INA149: INA149 gain error

    Resolved
    Part Number: INA149 Hi team， 1, according to the screenshot, if Vs=±15V, the output is ±4V RL＝1K seems have smaller gain error than RL＝2K. Can we say：the smaller the RL, the smaller the gain error? 2. Could you share typ or max gain error for…
    • Resolved
    • Answered

  • INA149: Differential Input Voltage Range

    Resolved
    Part Number: INA149 Tool/software: Hello Ti, We are using a TI INA149 in a circuit, see snipped below, and I need advice on the maximum differential input range. We are using this circuit with differential input voltages from 3V to around 6V just fine…
    • Resolved

  • INA149: Supply voltage range limitation

    TI Thinks Resolved
    Part Number: INA149 Tool/software: Dear Tech Support, I am a researcher at ETH Zurich working on developing a Howland stimulator with a bootstrap configuration, inspired by Marshall Trout's howland research and schematic ( https://www.nature.com/articles…
    • Answered

  • INA149: Clarification of common mode range when using single +12V supply

    Resolved
    Part Number: INA149 Tool/software: Figure 3 of the data sheet for INA149 shows common mode range for various + & - supply voltages. I will use a single supply at 12V instead. Does that mean I still get the same + common mode voltage support as is shown…
    • Resolved

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