Hello Gary,
Gary Zeng said: The device is calibrated at a constant temperature of 40°C, then shut down for one night, and then turned on the next day to keep the temperature at 40°C, and the voltage of the REF5040 becomes larger.
What is the total…
Part Number: REF70 Other Parts Discussed in Thread: REF50 , , REF4132 , REF33 , REF34 , REF35 , REF54 Tool/software: Can I calibrate the output of my voltage reference to increase the accuracy of my system?
Hello Kazuya,
Figure 7-4 is the typical temperature drift for either grade of REF50, not the maximum. The trend should be similar for both grades. It is meant to be used as a guideline of how the output voltage may change with temperature. For the maximum…
Hello,
Here are some precision voltage references that could fit your requirements:
REF35 : Accuracy of ±0.05%, Options from 1.024V to 5V, input voltage range of Vout + Vdo to 6V, output current rating ±10mA
REF20 : Accuracy of ±0.05%, Options from…
Part Number: REF54 Other Parts Discussed in Thread: REF50 , REF70 , REF4132 , REF34 , REF35 , Tool/software: I need to calculate the worst possible error for my series voltage reference to help with my ADC gain error calculations. How is that done, and…
Hi Patrick,
This is a valid configuration for some series references, however some of the series references in our portfolio have unpredictable behavior when operated in this configuration. Page 6 figure 4 of this whitepaper ( https://www.ti.com/seclit…
Part Number: REF5050 Other Parts Discussed in Thread: REF50 In REF50 datasheet, does figure 7-14 Noise Spectral Density show data for REF5025? Somewhere in the datasheet it says with higher output voltage, the noise spectral density needs to be scaled…
Hi Brian,
LM4140 is an older part. Please consider a different device such as REF35 or REF50. I have reached out to you via email for further discussion.
Thanks,
Jackson
Hello,
The trim function of REF5010 is for fine tuning. It is not recommended to trim the output more than +-15mV. You can use Section 9.2 to help in choosing your resistor values.
Do you need to adjust the output voltage of REF5010? If so, what is…
