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DAC7742: Settling Time

cafain
Mastermind 6425 points
Part Number: DAC7742
Other Parts Discussed in Thread: DAC7741

HI, Staff

Please ask me a question on DAC7742YC's Settling time.

Datasheet (SBAS256A) page 2 states "Settling Time to ±0.003%: 4us(max)".
There is also a description of page5 ANALOG ts: 5uS(max).

What is the difference between 4us and 5us? (Is it a measurement condition?)

best regards
cafain

  • +1
    TI__Mastermind 30548 points

    Hi Cafain,

    I believe the 4us spec here is a typo:

    I checked a very similar device (the DAC7741) and it shows a typical settling time of 3us and max of 5us, which aligns with the other mentions of 5us in the DAC7742 datasheet. 

    You can also take a look at the typical characteristics plots for detailed behavior of the settling time for the unipolar and bipolar modes:

    Best,

    Katlynne Jones