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  • RE: INA823: INA823:

    Hi Tan, ADC noise is not included and need to be added using above formula - INL, DNL, Eg and Eo are all DC parameters and do not include the ADC noise. Having said that, as discussed in https://training.ti.com/ti-precision-labs-adcs-statistics-behind…

  • INA823: INA823 nA current measurement

    Part Number: INA823 Other Parts Discussed in Thread: INA283 , TINA-TI Hi, I need to use this circuit INA823 for nA current measurement, could I be recommended values for R1/R2/R3 for 0-1250nA measurement with 1nA-10nA accuracy if possible? I would like…

  • ADS8689: Calculate ADC(ADS8689)+ Amp(ina823) error

    Part Number: ADS8689 Other Parts Discussed in Thread: INA823 , Hi， team！ I want to calculate ADC823+ Amp8689 error. offset voltage error : INA823: G=1, V(OS_RTI)=V_OSI+V_OSO∕G=(20+140∕1)uV=160.06uV V(OS_INA)=G*V(OS_RTI)=160.06uV ADS8689: V(OS_ADC)=Eo=…

  • INA823: Rail output for single supply 5V

    TI Thinks Resolved
    Part Number: INA823 Other Parts Discussed in Thread: INA849 I got following output from INA823DR for different input. Attached circuit in the attachment. 10mV in = 1.2V 20mV in = 2.4V 30mV in = 3.6V 40mV in = 3.8V The expected output for 40mV in is 4…

  • INA823: Non Linear behavior for large signal

    TI Thinks Resolved
    Part Number: INA823 INA823_non_linear_behavior.TSC Firstly i admit i may have missed something in the data sheet but..... supply voltage 3.3 input common mode voltage = 1v Vref =0v Rg=20K => Av=6 differential signal ramp from 0 --> 0.4v Problem…

  • INA823: Current consumption estimation

    TI Thinks Resolved
    Part Number: INA823 Other Parts Discussed in Thread: OPA4187 Hi Team, Can you estimate how much current INA823, REF50xx for amplifying a force sensor signal and 2 low pass filter OPAmps (OPA4187) need in total? Is 100mA from an LDO enough? Thank you…

  • INA823: Incorrect number of interface nodes for X_U1.

    Part Number: INA823 Getting this Pspice error message when simulation a simple test circuit using TI's INA823 pspice model.

  • RE: INA826: Expected issues with a gain of 1000 and Voltage of 3V

    Hi Jan, In addition to Clemens suggestion, you may also try INA823 as shown in the image below. Jan Croes said: has a bandwidth over of 4kHz If this is the hard requirements at gain of 1000 V/V, then you may have to pick higher BW instrumentation amplifier…

  • RE: INA826: INA826

    Allen, The difference of 20nV/rt-Hz vs 21V/rt-Hz is insignificant taking into account that the normal noise process variation may be as high as 20%. As far as the output swing goes, the only difference between INA823 and INA826 is 150mV to negative rail…

  • INA149: Either input offset or gain is out of spec on 5 sample designs.

    TI Thinks Resolved
    Part Number: INA149 Other Parts Discussed in Thread: TINA-TI , INA148 , INA823 , INA121 I am using IN149AMDREP to measure the voltage drop across a resistor that will typically have 2.00v across it The circuit was originally designed using IN148UA but supply…

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