Datasheet AD10200 (Analog Devices) - 7

AD10200 DEFINITION OF SPECIFICATIONS Overvoltage Recovery Time Analog Bandwidth
The amount of time required for the converter to recover to The analog input frequency at which the spectral power of the 0.02% accuracy after an analog input signal of the specified fundamental frequency (as determined by the FFT analysis) is percentage of full scale is reduced to midscale. reduced by 3 dB.
Power Supply Rejection Ratio Aperture Delay
The ratio of a change in output offset voltage to a change in The delay between the 50% point on the rising edge of the power supply voltage. ENCODE command and the instant at which the analog input
Signal-to-Noise-and-Distortion (SINAD)
is sampled. The ratio of the rms signal amplitude (set a 1 dB below full scale)
Aperture Uncertainty (Jitter)
to the rms value of the sum of all other spectral components, The sample-to-sample variation in aperture delay. excluding the first five harmonics and dc. [May be reported in
Differential Nonlinearity
dBc (i.e., degrades as signal levels is lowered) or in dBFS (always The deviation of any code from an ideal 1 LSB step. related back to converter full scale)].
Encode Pulsewidth/Duty Cycle Signal-to-Noise Ratio (without Harmonics)
Pulsewidth high is the minimum amount of time that the The ratio of the rms signal amplitude (set a I dB below full ENCODE pulse should be left in Logic “1” state to achieve scale) to the rms value of the sum of all other spectral compo- rated performance; pulsewidth low is the minimum time nents, excluding the first five harmonics and dc. [May be ENCODE pulse should be left in low state. At a given clock reported in dBc (i.e., degrades as signal levels is lowered) or in rate, these specs define an acceptable Encode duty cycle. dBFS (always related back to converter full scale).]
Harmonic Distortion Spurious-Free Dynamic Range
The ratio of the rms signal amplitude to the rms value of the The ratio of the rms signal amplitude to the rms value of the worst harmonic component. peak spurious spectral component. The peak spurious compo- nent may or may not be a harmonic. [May be reported in dBc
Integral Nonlinearity
(i.e., degrades as signal levels is lowered) or in dBFS (always The deviation of the transfer function from a reference line related back to converter full scale).] measured in fractions of 1 LSB using a “best straight line” determined by a least square curve fit.
Transient Response
The time required for the converter to achieve 0.02% accu-
Minimum Conversion Rate
racy when a one-half full-scale step function is applied to the The encode rate at which the SNR of the lowest analog signal analog input. frequency drops by no more that 3 dB below the guaranteed limit.
Two-Tone Intermodulation Distortion Rejection Maximum Conversion Rate
The ratio of the rms value of either input tone to the rms value of The encode rate at which parametric testing is performed. the worst third order intermodulation product; reported in dBc.
Output Propagation Delay Voltage Standing-Wave Ratio (VSWR)
The delay between the 50% point of the rising edge of ENCODE The ratio of the amplitude of the elective field at a voltage maxi- command and the time when all output data bits are within mum to that at an adjacent voltage minimum. valid logic levels. –6– REV. B