specified (Continued)

Specification Definitions

ANALOG INPUT BANDWIDTH is a measure of the fre-

quency at which the reconstructed output fundamental drops

3 dB below its low frequency value for a full scale input. The

test is performed with f

tiples of f

−3 dB relative to the low frequency input signal is the full

power bandwidth.

DIFFERENTIAL GAIN ERROR is the percentage difference

between the output amplitudes of a high frequency recon-

structed sine wave at two different dc input levels.

DIFFERENTIAL NON-LINEARITY (DNL) is the measure of

the maximum deviation from the ideal step size of 1 LSB.

DIFFERENTIAL PHASE ERROR is the difference in the out-

put phase of a reconstructed small signal sine wave at two

different dc input levels.

EFFECTIVE NUMBER OF BITS (ENOB, or EFFECTIVE

BITS) is another method of specifying Signal-to-Noise and

Distortion Ratio, or SINAD. ENOB is defined as (SINAD -

1.76)/6.02 and says that the converter is equivalent to a per-

fect ADC of this (ENOB) number of bits.

FULL POWER BANDWIDTH is a measure of the frequency

at which the reconstructed output fundamental drops 3 dB

below its low frequency value for a full scale input. The test

is performed with f

of f

relative to the low frequency input signal is the full power

bandwidth.

SINAD and ENOB vs f

CLK

DS100895-16

SINAD and ENOB vs

Clock Duty Cycle

DS100895-17

SNR vs f

IN

DS100895-18

THD vs f

IN

DS100895-19

(I

DS100895-20

t

DS100895-21

DS100895-22

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