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DAC121S101QML-SP: gain error

Adam Daluga
Expert 5820 points
Part Number: DAC121S101QML-SP

Hello,

I had some questions on the DAC121S101QML-SP Gain Error.

 

Do you have any estimate of the error of the DAC121S101QML-SP Gain Error at End of Life (aka ageing effects, is it an extra +/- 0.1%FSR over life, +/- 1%FSR over life, etc).

 

Also, the gain error over temperature is +/- 1%FSR over temperature but that is for VA 2.7V to 5.5V (see Table 6.5 below). Is it better at VA = 5.5V, Figure 23 seems to imply that (also shown below) but the table is all-inclusive and doesn’t specify a difference at various VA values.

Thanks,

Adam

  • 0
    TI__Expert 5730 points

    Hi Adam,

    Our quality tests guarantee that the device will stay within spec over the course of their lifetime. The gain error will not shift more than 1%FSR over its lifetime.

    For the quality testing, we only test at two voltages, 5.5V and 2.7V. Figure 23 shows Full Scale Error vs Temperature. 5.5V has slightly worse FSE over temperature, but it is more stable compared to 2.7V. We do not have any plots for the Gain Error vs temperature, but according to the TC GE parameter, a lower voltage will have less drift over temperature.

    Thanks,
    Erin