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| 型號(hào)： | EVAL-AD7687CBZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 28/28頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVALUATION FOR AD7687 |
| 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)）： | 4mW @ 5V，100kSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7687 |
| 已供物品： | 板，CD |
| 相關(guān)產(chǎn)品： | AD7687BCPZRL7DKR-ND - IC ADC 16BIT SAR 250KSPS 10LFCSP AD7687BCPZRL7CT-ND - IC ADC 16BIT SAR 250KSPS 10LFCSP AD7687BCPZRL7TR-ND - IC ADC 16BIT SAR 250KSPS 10LFCSP AD7687BCPZRL-ND - IC ADC 16BIT SAR 250KSPS 10LFCSP AD7687BRMZ-ND - IC ADC 16BIT 250KSPS 10-MSOP AD7687BRMZRL7-ND - IC ADC 16BIT 250KSPS 10MSOP |
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Data Sheet
AD7687
Rev. B | Page 9 of 28
TERMINOLOGY
Integral Nonlinearity Error (INL)
It 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 (Figure 26).
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.
Zero Error
It is the difference between the ideal midscale voltage, that is, 0
V, from the actual voltage producing the midscale output code,
that is, 0 LSB.
Gain Error
The first transition (from 100 . . . 00 to 100 . . . 01) should occur
at a level LSB above nominal negative full scale (4.999924 V
for the ±5 V range). The last transition (from 011…10 to
011…11) should occur for an analog voltage 1 LSB below the
nominal full scale (+4.999771 V for the ±5 V range.) The gain
error is the deviation of the difference between the actual level
of the last transition and the actual level of the first transition
from the difference between the ideal levels.
Spurious-Free Dynamic Range (SFDR)
SFDR is the difference, in decibels (dB), 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 S/(N+D) by the following formula
ENOB = (S/[N + D]dB 1.76)/6.02
and is expressed in bits.
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 dB.
Dynamic Range
It 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 dB.
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 dB.
Signal-to-(Noise + Distortion) Ratio (S/[N+D])
S/(N+D) 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 S/(N+D) is expressed in dB.
Aperture Delay
Aperture delay is the measure of the acquisition performance. It
is the time between the rising edge of the CNV input and when
the input signal is held for a conversion.
Transient Response
It is the time required for the ADC to accurately acquire its
input after a full-scale step function was applied.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD7687SDZ | 功能描述:BOARD EVAL FOR AD7687 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)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-AD7688CB | 制造商:Analog Devices 功能描述:EVAL BD FOR USE W/ EITHER THE ANLG DEVICES - Bulk |
| EVAL-AD7688CBZ | 功能描述:BOARD EVAL FOR AD7688 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)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-AD7688SDZ | 功能描述:BOARD EVAL FOR AD7688 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)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-AD7689CBZ | 制造商:Analog Devices 功能描述:EVAL BOARD 8 CH 250KSPS 16BIT ADC IC - Bulk |
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