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Question about AD698's sine wave excitation frequency range

Question asked by minjiezhang on Feb 27, 2016
Latest reply on Mar 15, 2016 by jcolao

AD698's datasheet states that the sine wave's excitation frequency range is from 20Hz to 20kHz. However, in our experiment(we've tried more than 5 pcs AD698), when the excitation frequency was set to 30kHz with the external capacitor, AD698 could still output the 30kHz sine wave whose frequency and amplitude were both stable.

 

As we need to use 30kHz modulation frequency in a product's prototype, I would like to know that if there are any problems with AD698 when it is set by an external capacitor to generate the 30kHz sine wave. Thanks.

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