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參數資料
| 型號： | AD9216BCPZRL7-80 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 10-Bit, 65/80/105 MSPS Dual A/D Converter |
| 中文描述： | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, QCC64 |
| 封裝： | 9 X 9 MM, LEAD FREE, MO-220-VMMD, LFCSP-64 |
| 文件頁數： | 10/20頁 |
| 文件大小： | 298K |
| 代理商： | AD9216BCPZRL7-80 |
AD9216
Preliminary Technical Data
TERMINOLOGY
Rev. PrD
Page 10 of 20
6/15/2004
Aperture Delay
Aperture delay is a measure of the sample-and-hold amplifier
(SHA) performance and is measured from the rising edge of the
clock input to when the input signal is held for conversion.
Aperture Jitter
The variation in aperture delay for successive samples, which is
manifested as noise on the input to the A/D converter.
Integral Nonlinearity (INL)
INL refers to the deviation of each individual code from a line
drawn from negative full scale through positive full scale. The
point used as negative full 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, No Missing Codes)
An ideal ADC exhibits code transitions that are exactly 1 LSB
apart. DNL is the deviation from this ideal value. Guaranteed
no missing codes to 10-Bits resolution indicates that all 2048
codes must be present over all operating ranges.
Offset Error
The major carry transition should occur for an analog value 1/2
LSB below VIN+ = VIN- . Offset error is defined as the
deviation of the actual transition from that point.
Gain Error
The first code transition should occur at an analog value 1/2
LSB above negative full scale. The last transition should occur
at an analog value 1 1/2 LSB below the nominal full scale.
Gain error is the deviation of the actual difference between first
and last code transitions and the ideal difference between first
and last code transitions.
Temperature Drift
The temperature drift for zero error and gain error specifies the
maximum change from the initial (25°C) value to the value at
T
MIN
or T
MAX
.
Power Supply Rejection
The specification shows the maximum change in full scale
from the value with the supply at the minimum limit to the
value with the supply at its maximum limit.
Total Harmonic Distortion (THD)
The ratio of the rms sum of the first six harmonic components
to the rms value of the measured input signal, expressed as a
percentage or in decibels relative to the peak carrier signal
(dBc).
Signal-to-Noise and Distortion (S/N+D, SINAD) Ratio
The ratio of the rms value of the measured input signal to the
rms sum of all other spectral components below the Nyquist
frequency, including harmonics but excluding dc. The value for
S/N+D is expressed in decibels relative to the peak carrier
signal (dBc).
Effective Number of Bits (ENOB)
Using the following formula:
(
SINAD
ENOB
=
effective number of bits for a
device for sine wave inputs at a given input frequency can be
calculated directly from its measured
SINAD
.
Signal-to-Noise Ratio (SNR)
The ratio of the rms value of the measured input signal to the
rms sum of all other spectral components below the Nyquist
frequency, excluding the first six harmonics and dc. The value
for SNR is expressed in decibels relative to the peak carrier
signal (dBc).
Spurious Free Dynamic Range (SFDR)
The difference in dB between the rms amplitude of the input
signal and the peak spurious signal.
Nyquist Sampling
When the frequency components of the analog input are below
the Nyquist frequency (f
CLOCK
/2), this is often referred to as
Nyquist sampling.
IF Sampling
Due to the effects of aliasing, an ADC is not necessarily limited
to Nyquist sampling. Higher sampled frequencies will be
aliased down into the first Nyquist zone (DC - f
/2) on the
output of the ADC. Care must be taken that the bandwidth of
the sampled signal does not overlap Nyquist zones and alias
onto itself. Nyquist sampling performance is limited by the
bandwidth of the input SHA and clock jitter (jitter adds more
noise at higher input frequencies).
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.
Out-of-Range Recovery Time
Out-of-range recovery time is the time it takes for the A/D
converter to reacquire the analog input after a transient from
10% above positive full scale to 10% above negative full scale,
or from 10% below negative full scale to 10% below positive
full scale.
)
02
6
76
1
.
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| AD9218BST-105 | 功能描述:IC ADC 10BIT DUAL 105MSPS 48LQFP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:- 位數:14 采樣率（每秒）:83k 數據接口:串行，并聯 轉換器數目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應商設備封裝:28-PDIP 包裝:管件 輸入數目和類型:1 個單端，雙極 |
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