1 2.5V. The reference voltage of
2 ad is 2.5V because this voltage value provides better performance and accuracy in most applications.
3 Choosing 2.5V as the reference voltage of ad can ensure that the input signal of ad can be accurately converted into digital signal in the positive and negative range, thus improving the accuracy and stability of ad. In addition, the 2.5V reference voltage can also meet the needs of most circuits, making the design and application of ad more convenient and flexible.
The accuracy of the reference voltage is generally very high!
AD chip : Reference voltage of AD9226 The error is generally. One in a thousand!
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I used a multimeter to measure the reference voltage of the AD9226 before, which was about 1.89V (the correct reference voltage of this AD should be 2V).