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  • OPA363: Capactive Drive limit for OPA363

    TI Thinks Resolved
    Part Number: OPA363 Hi, I would like to know if the OPA363 will be able to drive a 50nF load? If it can drive it, what is the maximum capacitive load that it can drive? If no, are their any alternate, high current/capacitance drive opamps that we can…
    • Answered

  • OPA363: difference in part numbers

    Resolved
    Part Number: OPA363 What is the difference between the OPA363AIDBV and the OPA363IDBV other than cost? There is nothing in the data sheet that tells me what the "A" in the part number refers to.
    • Resolved

  • DAC43701: Cannot generate a constant audible signal

    Part Number: DAC43701 Other Parts Discussed in Thread: OPA363 Dear sirs: We are currently working with the DAC43701DSGT in pair + amplifier + speaker to generate medical alarms. We have successfully generated medical alarms following the instructions…
    • Answered

  • OPA380: Photodiode Current-to-voltage conversion

    Resolved
    Part Number: OPA380 Other Parts Discussed in Thread: OPA363 , OPA365 , OPA810 , TLV9002 , OPA376 , ADS1115 Hello, I have two questions. I plan on using the OPA380 as a current-to-voltage converter for a thesis project. The current source is a photodiode…
    • Resolved
    • Answered

  • RE: OPA341: if shut down for an extended period, does not return.

    Resolved
    Ken, OPA363 is a good replacement for OPA341 in most applications.
    • Answered

  • RE: Transimpedance amplifier with LMH6629 problem with irrational bias current

    Resolved
    Hello Emmanuel, I wonder if you have a potential instability because of the time-constants involved and the OPA363 servo-amp is unable to get to a stable voltage on start-up. One thought I have is to have a 1K resistor to ground on the non-inverting…

  • RE: PGA112: Measuring single-ended values close to GND

    Hi Adam, I'm actually not sure that the issue you're seeing is being caused by the ADC. I suspect it is being caused by the PGA112's output swing limitation (50mV from either rail). While boosting Vref up would fix this, it causes an added issue that…
    • Answered

  • RE: TLC2272M: Worst Case voltage offset for a voltage follower that uses a TLC2272M op-amp

    Resolved
    1) M is the operating temperature range. For TLC2272M use TLC2272 specs on page 8. If you wee using a TLC2272AM then you would use TLC2272A specs on page 8. 2) Correct input offset voltage can change polarity based on input common mode voltage. Curve…
    • Answered

  • RE: OPA2180: Large offset in inverting buffer circuit that is outside the expected 70uV spec for the device

    Resolved
    Hi Ross, I believe you forgot to upload your schematic, but there are many other sources of offset that you are not considering, such as that produced by bias current flowing through large impedances, CMRR, PSRR, etc. You may find this article useful…
    • Answered

  • RE: THS4131 Vocm external driving from ADS8422

    Resolved
    Hello Ünal, I think there are two separate questions here. The first is what supply voltage you need for the THS4131 and the second is whether you need a buffer on the Vcm pin for the ADS8422. The amplifier input common mode is 4.096V, so the…

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