Datasheet

2
1f
2
6f
2
2f
10
‡
A
A++A
log20=THD
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ADC081S051
www.ti.com SNAS309E –APRIL 2005–REVISED MARCH 2013
TOTAL HARMONIC DISTORTION (THD) is the ratio, expressed in dB or dBc, 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. THD is
calculated as
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. (1)
THROUGHPUT TIME is the minimum time required between the start of two successive conversion. It is the
acquisition time plus the conversion time.
TOTAL UNADJUSTED ERROR is the worst deviation found from the ideal transfer function. As such, it is a
comprehensive specification which includes full scale error, linearity error, and offset error.
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