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參數資料
| 型號： | AD9814KR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Complete 14-Bit CCD/CIS Signal Processor |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 封裝： | 0.300 INCH, SOIC-28 |
| 文件頁數： | 5/15頁 |
| 文件大小： | 160K |
| 代理商： | AD9814KR |
REV. 0
AD9814
–5–
DEFINITIONS OF SPECIFICATIONS
INTEGRAL NONLINEARITY (INL)
Integral nonlinearity error refers to the deviation of each indi-
vidual code from a line drawn from “zero scale” through “posi-
tive full scale.” The point used as “zero scale” occurs 1/2 LSB
before the first code transition. “Positive full scale” is defined as
a level 1 1/2 LSB beyond the last code transition. The deviation
is measured from the middle of each particular code to the true
straight line.
DIFFERENTIAL NONLINEARITY (DNL)
An ideal ADC exhibits code transitions that are exactly 1 LSB
apart. DNL is the deviation from this ideal value. Thus every
code must have a finite width. No missing codes guaranteed to
14-bit resolution indicates that all 16384 codes, respectively,
must be present over all operating ranges.
OFFSET ERROR
The first ADC code transition should occur at a level 1/2 LSB
above the nominal zero scale voltage. The offset error is the
deviation of the actual first code transition level from the ideal
level.
GAIN ERROR
The last code transition should occur for an analog value
1 1/2 LSB below the nominal full-scale voltage. Gain error is
the deviation of the actual difference between first and last code
transitions and the ideal difference between the first and last
code transitions.
INPUT REFERRED NOISE
The rms output noise is measured using histogram techniques.
The ADC output codes’ standard deviation is calculated in
LSB, and converted to an equivalent voltage, using the relation-
ship 1 LSB = 4 V/16384 = 244 mV. The noise is then referred
to the input of the AD9814 by dividing by the PGA gain.
CHANNEL-TO-CHANNEL CROSSTALK
In an ideal three channel system, the signal in one channel will
not influence the signal level of another channel. The channel-
to-channel crosstalk specification is a measure of the change that
occurs in one channel as the other two channels are varied. In
the AD9814, one channel is grounded and the other two chan-
nels are exercised with full-scale input signals. The change in the
output codes from the first channel is measured and compared
with the result when all three channels are grounded. The differ-
ence is the channel-to-channel crosstalk, stated in LSB.
APERTURE DELAY
The aperture delay is the time delay that occurs from when a
sampling edge is applied to the AD9814 until the actual sample
of the input signal is held. Both CDSCLK1 and CDSCLK2
sample the input signal during the transition from high to low,
so the aperture delay is measured from each clock’s falling edge
to the instant the actual internal sample is taken.
POWER SUPPLY REJECTION
Power Supply Rejection specifies the maximum full-scale change
that occurs from the initial value when the supplies are varied
over the specified limits.
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相關代理商/技術參數 |
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|---|---|
| AD9814KRRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 14-Bit 5V 28-Pin SOIC W 制造商:Analog Devices 功能描述:14 BIT 6 MSPS SCANNER ANALOG FRONT END - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:14 BIT 6 MSPS SCANNER ANALOG FRONT END - Bulk |
| AD9814S | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit CCD/CIS Signal Processor |
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| AD9816-EB | 制造商:Analog Devices 功能描述:12-BIT 4MSPS CCD/CIS SIGNAL PROCESSOR - Bulk |
| AD9816JS | 制造商:Analog Devices 功能描述:AFE VID 1ADC 12-BIT 5V/5V 44MQFP - Bulk 制造商:Rochester Electronics LLC 功能描述: |
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