參數(shù)資料
型號： EVAL-AD7689EDZ
廠商： Analog Devices Inc
文件頁數(shù)： 7/32頁
文件大小： 0K
描述： BOARD EVAL AD7689
產(chǎn)品培訓(xùn)模塊： Motor Control
標(biāo)準(zhǔn)包裝： 1
系列： PulSAR®
ADC 的數(shù)量： 1
位數(shù)： 16
采樣率（每秒）： 250k
數(shù)據(jù)接口： 串行
輸入范圍： ±VREF
在以下條件下的電源（標(biāo)準(zhǔn)）： 12.5mW @ 250kSPS，5V
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD7689
已供物品： 板
Data Sheet
AD7682/AD7689
Rev. D | Page 15 of 32
TERMINOLOGY
Least Significant Bit (LSB)
The LSB is the smallest increment that can be represented by a
converter. For an analog-to-digital converter with N bits of
resolution, the LSB expressed in volts is
N
REF
V
LSB
2
(V) =
Integral Nonlinearity Error (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 LSB before the first
code transition. Positive full scale is defined as a level 1 LSB
beyond the last code transition. The deviation is measured from
the middle of each code to the true straight line (see Figure 25).
Differential Nonlinearity Error (DNL)
In an ideal ADC, code transitions are 1 LSB apart. DNL is the
maximum deviation from this ideal value. It is often specified in
terms of resolution for which no missing codes are guaranteed.
Offset Error
The first transition should occur at a level LSB above analog
ground. The offset error is the deviation of the actual transition
from that point.
Gain Error
The last transition (from 111 … 10 to 111 … 11) should occur
for an analog voltage 1 LSB below the nominal full scale. The
gain error is the deviation in LSB (or percentage of full-scale
range) of the actual level of the last transition from the ideal
level after the offset error is adjusted out. Closely related is the
full-scale error (also in LSB or percentage of full-scale range),
which includes the effects of the offset error.
Aperture Delay
Aperture delay is the measure of the acquisition performance. It
is the time between the rising edge of the CNV input and the
point at which the input signal is held for a conversion.
Transient Response
Transient response is the time required for the ADC to accurately
acquire its input after a full-scale step function is applied.
Dynamic Range
Dynamic range is the ratio of the rms value of the full scale to
the total rms noise measured with the inputs shorted together.
The value for dynamic range is expressed in decibels.
Signal-to-Noise Ratio (SNR)
SNR is the ratio of the rms value of the actual input signal to the
rms sum of all other spectral components below the Nyquist
frequency, excluding harmonics and dc. The value for SNR is
expressed in decibels.
Signal-to-(Noise + Distortion) Ratio (SINAD)
SINAD is the ratio of the rms value of the actual input signal to
the rms sum of all other spectral components below the Nyquist
frequency, including harmonics but excluding dc. The value for
SINAD is expressed in decibels.
Total Harmonic Distortion (THD)
THD is the ratio of the rms sum of the first five harmonic
components to the rms value of a full-scale input signal and is
expressed in decibels.
Spurious-Free Dynamic Range (SFDR)
SFDR is the difference, in decibels, between the rms amplitude
of the input signal and the peak spurious signal.
Effective Number of Bits (ENOB)
ENOB is a measurement of the resolution with a sine wave
input. It is related to SINAD by the formula
ENOB
= (SINADdB 1.76)/6.02
and is expressed in bits.
Channel-to-Channel Crosstalk
Channel-to-channel crosstalk is a measure of the level of crosstalk
between any two adjacent channels. It is measured by applying a
dc to the channel under test and applying a full-scale, 100 kHz
sine wave signal to the adjacent channel(s). The crosstalk is the
amount of signal that leaks into the test channel and is expressed
in decibels.
Reference Voltage Temperature Coefficient
Reference voltage temperature coefficient is derived from the
typical shift of output voltage at 25°C on a sample of parts at the
maximum and minimum reference output voltage (VREF) measured
at TMIN, T (25°C), and TMAX. It is expressed in ppm/°C as
6
10
)
–
(
)
(
)
(
–
)
(
)
C
ppm/
(
×
°
=
°
MIN
MAX
REF
T
C
25
V
Min
V
Max
V
TCV
where:
VREF
(Max) = maximum VREF at TMIN, T (25°C), or TMAX.
VREF
(Min) = minimum VREF at TMIN, T (25°C), or TMAX.
VREF
(25°C) = VREF at 25°C.
TMAX
= +85°C.
TMIN
= –40°C.
相關(guān)PDF資料
PDF描述
VE-J1J-EY CONVERTER MOD DC/DC 36V 50W
EVAL-AD7682EDZ BOARD EVAL AD7682
LGU2E331MELZ CAP ALUM 330UF 250V 20% SNAP
EVAL-AD7982SDZ BOARD EVAL FOR AD7982
VI-J1L-EY CONVERTER MOD DC/DC 28V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EVAL-AD7689EDZ 制造商:Analog Devices 功能描述:16 Bit A/D Converter Eval. Board
EVAL-AD7690CB 制造商:Analog Devices 功能描述:AD7690 EVAL - Bulk
EVAL-AD7690SDZ 功能描述:BOARD EVAL FOR AD7690 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
EVAL-AD7691CBZ 功能描述:BOARD EVALUATION FOR AD7691CBZ RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
EVAL-AD7691SDZ 功能描述:BOARD EVAL FOR AD7691 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*