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AD8353: signal inversion

Thread Summary

The user is characterizing a design using two AD8353 amplifiers and wants to confirm if the output signal undergoes a 180° phase shift compared to the input. The final answer confirms there is no major phase shift from input to output. The user injects a low-voltage pulse every 1ns into the first amplifier, but this does not affect the phase shift.
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Category: Hardware
Product Number: AD8353

Hello
I am characterizing a design which is with two AD8353. Somehow we perform a subtraction between the outputs of the two amplifiers.
Both amplifiers are feed with a sin wave. But for the first one we inject a pulse each 1ns.This pulse is really low voltage. I cannot see it on an oscilloscope.
To make sure I am subtracting correctly and to be sure I characterize the design correctly I'd like to know if the amplifier performs a 180° shift on the signal i.e. is the output inverted compared to the input?

Thanks

Nicolas