AD9410 datasheet(12/21 Pages) AD

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AD9410

Rev. A | Page 11 of 20

Signal-to-Noise-and-Distortion (SINAD)

The ratio of the rms signal amplitude (set 0.5 dB below full

scale) to the rms value of the sum of all other spectral

components, including harmonics, but excluding dc.

Signal-to-Noise Ratio (Without Harmonics)

The ratio of the rms signal amplitude (set at 0.5 dB below full

scale) to the rms value of the sum of all other spectral

components, excluding the first five harmonics and dc.

Spurious-Free Dynamic Range (SFDR)

The ratio of the rms signal amplitude to the rms value of the

peak spurious spectral component. The peak spurious

component may or may not be a harmonic. It may be reported

in dBc (that is, degrades as signal level is lowered) or dBFS

(always related back to converter full scale).

Transient Response Time

Transient response time is defined as the time it takes for the

ADC to reacquire the analog input after a transient from 10%

above negative full scale to 10% below positive full scale.

Two-Tone Intermodulation Distortion Rejection

The ratio of the rms value of either input tone to the rms

value of the worst third-order intermodulation product;

reported in dBc.

Two-Tone SFDR

The ratio of the rms value of either input tone to the rms value

of the peak spurious component. The peak spurious component

may or may not be an IMD product. May be reported in dBc

(that is, degrades as signal level is lowered) or in dBFS (always

related back to converter full scale).

Worst Other Spur

The ratio of the rms signal amplitude to the rms value of the

worst spurious component (excluding the second and third

harmonic) reported in dBc.

Table 7. Output Coding (VREF = 2.5 V)

Step

AIN − AIN

Digital Outputs Offset Binary

Digital Outputs Twos Complement

ORA, ORB

>+0.768

11 1111 1111

01 1111 1111

1023

+0.768

11 1111 1111

01 1111 1111

513

+0.0015

10 0000 0001

00 0000 0001

512

0.0

10 0000 0000

00 0000 0000

511

–0.0015

01 1111 1111

11 1111 1111

–0.768

00 0000 0000

10 0000 0000

< –0.768

00 0000 0000

10 0000 0000

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