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  • INA828: INA828 output offset, strange behaviour

    Part Number: INA828 Tool/software: Hello ! Here I have very simple gain 10 inst amp. Input is from piezo sensor (about 4nf). But with UNCONNECTED input I get about 15mV AC hum to output AND about 8mV DC offset. PCB layout is "by the book", power…

  • INA828: IN828 vs. INA818

    Part Number: INA828 Other Parts Discussed in Thread: INA818 , INA118 , INA819 , INA826 Tool/software: We have a circuit that previously used a competing device the LT1167A. To increase Overvoltage and ESD protection we switched to the INA818 since it…
    • Answered

  • INA828: Technical inquiries regarding the use of INA828

    Resolved
    Part Number: INA828 Hi, TI expert A customer company is mass producing a product using INA828, but a problem has occurred and I have a technical inquiry. For more information, please check the circuit diagram and problem details in the attached document…
    • Resolved

  • INA828: CMV vs Output voltage in single supply / 0 Vdc Vref low gain configuration.

    Part Number: INA828 Other Parts Discussed in Thread: INA823 , TINA-TI Tool/software: Operating this INA828 as follows: +Vs = 19.75 Vdc -Vs = 0 Vdc Vref = 0 Vdc Gain = 3.6 -In = 2.554 Vdc +In = 3.943 Vdc TI calculator says I should be able…

  • INA828: INA828IDR 25 year batch cannot read temperature, ADC_oUT is significantly different

    TI Thinks Resolved
    Part Number: INA828 Other Parts Discussed in Thread: INA823 Tool/software: The INA828IDR old batch of goods can be used normally for DC23+ and DC24+, with normal values. However, after the chips in the DC25+are soldered, the temperature cannot be read…
    • Answered

  • INA828: INA828 single source output limits

    Resolved
    Part Number: INA828 Other Parts Discussed in Thread: INA326 Hi, I am trying to simulate in LTspice the next circuit using INA828: Vptp = 4V Vcommon = 2.5v Vref = 2.5V Gain = 1 Vcc = 5V Vee = 0V I expect to receive output signal between…
    • Resolved

  • INA828: Generation 1 (INA128) vs Gen 2 (INA828)

    TI Thinks Resolved
    Part Number: INA828 Other Parts Discussed in Thread: INA128 , We are long time users of the INA128. The INA828 is advertised as a generation 2 version of the INA128. In order to use the INA828 in our design we need to perform validation testing with the…
    • Answered

  • INA828: Input bias current return path

    Resolved
    Part Number: INA828 Tool/software: Hi all, I am unsure how to handle the return path of bias current or if it is necessary. Here is how my input stage looks: As far as I can tell there needs to be a path to ground for both inputs. The…
    • Resolved

  • INA828: CMRR vs Frequency, datasheet fig 17, confirmation requested

    TI Thinks Resolved
    Part Number: INA828 Tool/software: Dear Sir Madam, The datasheet (SBOS792A –AUGUST 2017–REVISED JANUARY 2018) Fig 17 (copied below) shows CMRR vs Frequency for four (4) values of gain. The traces show that CMRR is lowest for G=1 (eg: 100dB @1kHz…

  • INA828: Instrumentation Amplifiers Recomendation

    Part Number: INA828 Other Parts Discussed in Thread: INA823 ➀ Temperature specification compensation of 125°C or more and low temperature drift ② it is possible from a common-mode input range of 0V with a single supply (assuming +5V) vs an output, and…

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