TS83102G0B ATMEL Corporation, TS83102G0B Datasheet - Page 31

• Manufacturer Part Number: TS83102G0B
• Description: 10-bit 2 GSPS ADCthis State-of-the-art 10-bit 2 GSPS Converter Offers an Unprecedented Bandwidth of 3.3 GHZ And Excellent Band Flatness, Allowing to Directly Digitize Very High if Signals (2nd And 3rd Nyquist Zones) With High Linearity : The SFDR Rem
• Manufacturer: ATMEL Corporation

2101C–BDC–02/04
Without ADC input referred thermal noise:
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Conclusion:
Though the ENOB is 7.6 bits (in this example at 1.4 Gsps Nyquist conditions), the ADC fea-
tures a 10-bit linearity regarding the 60 dB typical SFDR performance.
However, it has to be pointed out that the ENOB is actually limited by the ADC’s input referred
thermal noise, which dominates the rms quantization noise. For certain applications (using a
spread spectrum) the signal may be recovered below the thermal noise floor (by cross correla-
tion since it is white noise).
Therefore, the thermal noise can be extracted from the ENOB: the ENOB without a referred
input thermal noise is 9.2 instead of 7.6 in this example, only limited by the quantization noise
and clock induced jitter.
ENOB = 9.2 bits
SINAD = 57 dB
THD = -55.7 dB (over 25 harmonics)
SFDR = -62.6 dBc
SNR = 57.3 dB
TS83102G0B
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