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  • INA849: About input bias of INA849.

    Resolved
    Part Number: INA849 Other Parts Discussed in Thread: TINA-TI Hi ALL I used INA849 for the input circuit of the IR sensor. It looks like a normal differential amplifier. However, it becomes somewhat unstable at startup. Initially, IN- was connected directly…
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    • Answered

  • INA849: Simulation and datasheet bandwidth differ

    Resolved
    Part Number: INA849 Other Parts Discussed in Thread: TINA-TI , Tool/software: Hello, I'm interested by the INA849 instrumentation amplifier at a gain of 5~10 but its BW is a little bit too low. I tried a simulation on TINA-TI and LTspice and the simulation…
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  • INA849: noise derivation

    Part Number: INA849 Tool/software: Hello, I'm looking for a way to do derivation of the noise with the INA849. How can I do to have the opamp noise (current and voltage) of the op amps inside the INA in order to take in account the gain resistor noise…

  • INA849: I need low noise+distortion, gain 1->1000, input from the INA849

    TI Thinks Resolved
    Other Parts Discussed in Thread: INA849 , PCM2903 , OPA211 , JFE2140 , JFE150 , OPA145 Hi! I have built an instrumentation amplifier using the INA849 chip. But my signals are VERY weak, so even though the INA849 gives me a gain around 1500, I need a…

  • INA849: current measurement reference design

    Part Number: INA849 Tool/software: hi i need support for the above part the requirement is we need to measure transient current of 10A/us Is it possible to measure this transient current with this INA? Load transient testing with high slew rates…

  • INA849: I am trying to measure floating battery voltage measurement, and I have trouble correctly biasing to meet the input voltage requirement.

    TI Thinks Resolved
    Part Number: INA849 Tool/software: Hello, My project involves battery SoC sensing using a thin coil mounted on top of the battery, and this injects 20MHz sine wave signal to drive the coil, as a result, the battery cathode and anode does pick up 20MHz…
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  • INA849: Current noise specification datasheet query

    Resolved
    Part Number: INA849 Other Parts Discussed in Thread: TINA-TI Tool/software: Hello, I am trying to determine an accurate value for the 0.1Hz-10Hz current noise on INA849. On Page6 of its datasheet this is quoted at 100pApp. However, in Figure 7-28 it looks…
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  • INA849: Schematic review

    TI Thinks Resolved
    Part Number: INA849 Other Parts Discussed in Thread: AM6442 , OPA388 , OPA328 , OPA810 Dear team, The customer would like to use AD8421, competitor device at current sensor application based on CT. I want to replace this device to Our INA849. Please…
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  • INA849: INA849 radiation data and technology type

    Resolved
    Part Number: INA849 I will need to perform radiation testing on INA849 for use in a NASA mission unless TI has more info they can provide... 1) Does TI have any radiation test data on this part? (TID or SEE?) 2) Does this part use bipolar or CMOS…
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  • INA849: Input protection resistors selection?

    Resolved
    Part Number: INA849 Other Parts Discussed in Thread: TMUX6222 , INA826S , TMUX6122 , TMUX7222 Dear Friend I have a low-power application requiring a power off in standby mode, I use INA849 to measure DC current of a main power line via a shunt resistor…
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