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ADC08200 Просмотр технического описания (PDF) - Texas Instruments

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ADC08200 8-Bit, 20 Msps to 200 Msps, Low Power A/D Converter with Internal Sample and-Hold TI
Texas Instruments TI
ADC08200 Datasheet PDF : 27 Pages
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ADC08200
www.ti.com
SNAS136M – APRIL 2001 – REVISED MARCH 2013
SIGNAL TO NOISE PLUS DISTORTION (S/(N+D) or SINAD) is the ratio, expressed in dB, of the rms value of
the input signal at the output to the rms value of all of the other spectral components below half the clock
frequency, including harmonics but excluding d.c.
SPURIOUS FREE DYNAMIC RANGE (SFDR) is the difference, expressed in dB, between the rms values of the
input signal at the output and the peak spurious signal, where a spurious signal is any signal present in
the output spectrum that is not present at the input.
TOTAL HARMONIC DISTORTION (THD) is the ratio expressed in dB, of the rms total of the first nine harmonic
levels at the output to the level of the fundamental at the output. THD is calculated as
THD = 20 x log
Af22
+...
+
A
2
f10
A
2
f1
where
• Af1 is the RMS power of the fundamental (output) frequency
• Af2 through Af10 are the RMS power of the first 9 harmonic frequencies in the output spectrum
(3)
ZERO SCALE OFFSET ERROR is the error in the input voltage required to cause the first code transition. It is
defined as
VOFF = VZT VRB
where
• VZT is the first code transition input voltage
(4)
Timing Diagram
Figure 2. ADC08200 Timing Diagram
Copyright © 2001–2013, Texas Instruments Incorporated
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