Datasheet

2
1f
2
6f
2
2f
10
‡
A
A++A
log20=THD
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ADC122S706
SNAS408A –NOVEMBER 2007–REVISED MARCH 2013 www.ti.com
SPURIOUS FREE DYNAMIC RANGE (SFDR) is the difference, expressed in dB, between the desired signal
amplitude to the amplitude of the peak spurious spectral component, where a spurious spectral component is
any signal present in the output spectrum that is not present at the input and may or may not be a harmonic.
TOTAL HARMONIC DISTORTION (THD) is the ratio of the rms total of the first five harmonic components at the
output to the rms level of the input signal frequency as seen at the output, expressed in dB. THD is calculated as
(3)
where A
f1
is the RMS power of the input frequency at the output and A
f2
through A
f6
are the RMS power in the
first 5 harmonic frequencies.
THROUGHPUT TIME is the minimum time required between the start of two successive conversion.
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