effective number of bits


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effective number of bits

(hardware)
(ENOB) An indication of the quality of an analog to digital converter. The measurement is related to the test frequency and the signal-to-noise ratio.

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The series provides 10-bit 2.5 Gsps performance of > 60 dB spurious free dynamic range (SFDR) for IF and direct sampling applications at full scale, signal-to-noise (SNR) performance of 51 dB, an effective number of bits (ENOB) of 8 bits at 2.5 Gsps data rate, and input frequency of 2.5 GHz.
Today, however, ADCs can provide nearly 9.5 bits of effective number of bits (ENOB) at radio frequencies (RF) of 1 GHz, with signal bandwidths greater than 200 MHz.
In addition to 10.1 effective number of bits, the card offers a signal-to-noise ratio >62.5 dB and total harmonic distortion of <-61.0 dB and a -3-dB bandwidth >12.5 MHz.
High accuracy is evidenced by an effective number of bits (ENOB) of 14.2 b and a spurious free dynamic range (SFDR) of 100 dB.

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