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  • PGA855: Question about input voltage rating

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    Part Number: PGA855 Other Parts Discussed in Thread: PGA849 , PGA280 , INA500 , Tool/software: Hello, I would like to use the PGA855 with a single supply and a signal of +/- 4V with a common-mode voltage of 2.5V. My question is: does "Input voltage…
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  • PGA855: Simulation Model

    Resolved
    Part Number: PGA855 Following this thread https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1308225/pga855-simulation-unable-to-converge?tisearch=e2e-sitesearch&keymatch=PGA855# I would like to know if the model has been fixed…
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  • PGA855: Output clipped at 16V

    Resolved
    Part Number: PGA855 I have a PGA855, with VS+ (LVDD) and VS- (LVSS) powered by +30V and -4V (34V total) respectively. However, I noticed that the OUT- pin would be clipped near 16V. I don't see the datasheet mentioning this anywhere. Am I missing…
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  • PGA855: CMRR at 100kHz

    Resolved
    Part Number: PGA855 Hi TI, Referring to this plot, I am expecting the CMRR at 100kHz to be similar for gain of 16 and gain of 8, about 96dB ish I am characterizing the device on its EVM, powered from ±15V, what I find is that, at a gain of 8, the…
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  • PGA855: KiCad spice model

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    Part Number: PGA855 Other Parts Discussed in Thread: TINA-TI Dear all, sadly KiCad does not support encrypted SPICE models. Is there a possibility to get an unencrypted model? BR, Felix
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  • PGA855: which PGA should i choose

    TI Thinks Resolved
    Part Number: PGA855 Other Parts Discussed in Thread: PGA849 , PGA281 , PGA280 Tool/software: The input signals can vary from ±10V, ±5V, ±1V, and ±500mV, with a frequency range of 0-30kHz. The given ADC's reference voltage (VREF) is 4.096V and its requirement…
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  • PGA855: Custom board analog front-end shows excessive input current leakage. Leakage current gets worse with increasing common-mode voltage

    Resolved
    Part Number: PGA855 Other Parts Discussed in Thread: PGA849 Tool/software: Hello, We are designing an analog front-end with the PGA855 to measure voltages at ±12.5 V. There are 8 analog front-ends on this custom board. The board is battery-operated…
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  • PGA855: Simulation unable to converge

    Part Number: PGA855 With my intended design, simulation with PGA855 model is unable to converge: OUT_DIFF seems to have reached some extremely high value: Here is my schematic: Sine wave is 1V amplitude, at 100kHz And I have also attached the file here…

  • PGA855: The recommend triple waveform frequency in test and measurement EE.

    Part Number: PGA855 Other Parts Discussed in Thread: PSPICE-FOR-TI , TINA-TI Tool/software: Hi team, My customer wants to use PGA855 in the DGT loop to sense the triangle wave signal. If the Sine wave is to be measured, the frequency of the triangle…

  • PGA855: Amplifier shows ringing/instabilities with 3 MHz input signal

    Part Number: PGA855 Other Parts Discussed in Thread: ADS8900B , Tool/software: Dear TI support, In our custom data acquisition evaluation board we observed some unwanted behavior for signals with a few MHz. We tracked it down to the used PGA855 amplifier…

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