Datasheet AD9215 (Analog Devices) - 10

Data Sheet AD9215
with the supply at its maximum limit.
Spurious-Free Dynamic Range (SFDR) Signal-to-Noise and Distortion (SINAD) Ratio
SFDR is the difference in dB between the rms amplitude of the SINAD is the ratio of the rms value of the measured input sig- input signal and the peak spurious signal. nal to the rms sum of all other spectral components below the
Temperature Drift
Nyquist frequency, including harmonics but excluding dc. The The temperature drift for zero error and gain error specifies the value for SINAD is expressed in decibels. maximum change from the initial (25°C) value to the value at
Signal-to-Noise Ratio (SNR)
TMIN or TMAX. SNR is the ratio of the rms value of the measured input signal to
Total Harmonic Distortion (THD)
the rms sum of all other spectral components below the Nyquist THD is the ratio of the rms sum of the first six harmonic com- frequency, excluding the first six harmonics and dc. The value ponents to the rms value of the measured input signal and is for SNR is expressed in decibels. expressed as a percentage or in decibels.
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. It may be reported in dBc (i.e., degrades as signal levels are lowered) or in dBFS (always related back to converter ful scale). Rev. B | Page 9 of 36 Document Outline Specifications Absolute Maximum Ratings1 Explanation of Test Levels ESD Caution Pin Configurations and Function Descriptions Equivalent Circuits Definitions of Specifications Aperture Delay Aperture Jitter Clock Pulse Width and Duty Cycle Differential Nonlinearity (DNL, No Missing Codes) Effective Number of Bits (ENOB) Gain Error Integral Nonlinearity (INL) Maximum Conversion Rate Minimum Conversion Rate Offset Error Out-of-Range Recovery Time Output Propagation Delay Power Supply Rejection Signal-to-Noise and Distortion (SINAD) Ratio Signal-to-Noise Ratio (SNR) Spurious-Free Dynamic Range (SFDR) Temperature Drift Total Harmonic Distortion (THD) Two-Tone SFDR Typical Performance Characteristics Applying the AD9215 Theory of Operation Analog Input and Reference Overview Differential Input Configurations Single-Ended Input Configuration Clock Input and Considerations Power Dissipation and Standby Mode Digital Outputs Timing Voltage Reference Internal Reference Connection External Reference Operation Operational Mode Selection Evaluation Board Outline Dimensions Ordering Guide