Driving Differential ADCs.pdf

Driving Differential ADCs.pdf
designfeature By Sally Paterson, Analog Devices Inc



CONVERTING A SINGLE-ENDED SIGNAL
TO A DIFFERENTIAL SIGNAL BEFORE THE
ANALOG-TO-DIGITAL CONVERSION CAN IMPROVE THE
PERFORMANCE OF YOUR DATA-ACQUISITION SYSTEM.



Maximize performance
when driving differential ADCs
sing differential signals in data-acquisition signals. It also provides common-mode level shift-

U systems is becoming increasingly popular be-
cause differential signals are highly immune to
system noise based on the common-mode rejection
ing and buffering of the analog input signal.
In Figure 1, a bipolar, single-ended signal with an