AD10465/PCB(RevA) 查看數據表（PDF） - Analog Devices

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AD10465/PCB
(Rev.:RevA)

Dual Channel, 14-Bit, 65 MSPS A/D Converter with Analog Input Signal Conditioning

Analog Devices 

TERMINOLOGY

Analog Bandwidth

The analog input frequency at which the spectral power of the

fundamental frequency (as determined by the FFT analysis) is

reduced by 3 dB.

Aperture Delay

The delay between a differential crossing of ENCODE and

ENCODE, and the instant at which the analog input is sampled.

Aperture Uncertainty (Jitter)

The sample-to-sample variation in aperture delay.

Differential Nonlinearity

The deviation of any code from an ideal 1 LSB step.

ENCODE Pulse Width/Duty Cycle

Pulse width high is the minimum amount of time that the

ENCODE pulse should be left in Logic 1 state to achieve rated

performance; pulse width low is the minimum time ENCODE

pulse should be left in low state. At a given clock rate, these

specs define an acceptable encode duty cycle.

Harmonic Distortion

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

worst harmonic component.

Integral Nonlinearity

The deviation of the transfer function from a reference line

measured in fractions of 1 LSB using a “best straight line”

determined by a least square curve fit.

Minimum Conversion Rate

The encode rate at which the SNR of the lowest analog signal

frequency drops by no more than 3 dB below the guaranteed

limit.

Maximum Conversion Rate

The encode rate at which parametric testing is performed,

above which converter performance can degrade.

AD10465

Output Propagation Delay

The delay between a differential crossing of ENCODE and

ENCODE, and the time when all output data bits are within

valid logic levels.

Overvoltage Recovery Time

The amount of time required for the converter to recover to

0.02% accuracy after an analog input signal of the specified

percentage of full scale is reduced to midscale.

Power Supply Rejection Ratio

The ratio of a change in input offset voltage to a change in

power supply voltage.

Signal-to-Noise and Distortion (SINAD)

The ratio of the rms signal amplitude (set at 1 dB below full

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

nents, including harmonics but excluding dc. Can be reported

in dB (that is, relative to signal level) or in dBFS (always related

back to converter full scale).

Signal-to-Noise Ratio (Without Harmonics)

The ratio of the rms signal amplitude (set at 1 dB below full

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

nents, excluding the first five harmonics and dc. Can be

reported in dB (that is, relative to signal level) or in dBFS

(always related back to converter full scale).

Spurious-Free Dynamic Range

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.

Transient Response

The time required for the converter to achieve 0.03% accuracy

when a one-half, full-scale step function is applied to the analog

input.

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

dBFS.

Rev. A | Page 11 of 24

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