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參數(shù)資料
| 型號(hào)： | EVAL-AD7327CBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 8/37頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVALUATION FOR AD7327 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | iCMOS® |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | ±10 V |
| 在以下條件下的電源（標(biāo)準(zhǔn)）： | 17mW @ 500kSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7327 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | AD7327BRUZ-REEL-ND - IC ADC 12BIT+SAR 8CHAN 20-TSSOP AD7327BRUZ-REEL7-ND - IC ADC 12BIT+ SAR 8CHAN 20TSSOP AD7327BRUZ-ND - IC ADC 12BIT+ SAR 8CHAN 20TSSOP |
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Data Sheet
AD7327
Rev. B | Page 15 of 36
Channel-to-Channel Isolation
Channel-to-channel isolation is a measure of the level of crosstalk
between any two channels. It is measured by applying a full-scale,
100 kHz sine wave signal to all unselected input channels and
determining the degree to which the signal attenuates in the
selected channel with a 50 kHz signal. Figure 14 shows the worst-
case across all eight channels for the AD7327. The analog input
range is programmed to be the same on all channels.
Intermodulation Distortion
With inputs consisting of sine waves at two frequencies, fa and
fb, any active device with nonlinearities creates distortion products
at sum and difference frequencies of mfa ± nfb, where m, n = 0,
1, 2, 3, and so on. Intermodulation distortion terms are those
for which neither m nor n are equal to 0. For example, the
second-order terms include (fa + fb) and (fa fb), whereas the
third-order terms include (2fa + fb), (2fa fb), (fa + 2fb), and
(fa 2fb).
The AD7327 is tested using the CCIF standard where two input
frequencies near the top end of the input bandwidth are used.
In this case, the second-order terms are usually distanced in
frequency from the original sine waves, whereas the third-order
terms are usually at a frequency close to the input frequencies.
As a result, the second- and third-order terms are specified
separately. The calculation of the intermodulation distortion is
per the THD specification, where it is the ratio of the rms sum
of the individual distortion products to the rms amplitude of
the sum of the fundamentals expressed in decibels.
PSR (Power Supply Rejection)
Variations in power supply affect the full-scale transition but
not the linearity of the converter. Power supply rejection is the
maximum change in the full-scale transition point due to a
change in power supply voltage from the nominal value (see the
CMRR (Common-Mode Rejection Ratio)
CMRR is defined as the ratio of the power in the ADC output at
full-scale frequency, f, to the power of a 100 mV sine wave
applied to the common-mode voltage of the VIN+ and VIN
frequency, fS, as
CMRR (dB) = 10 log (Pf/PfS)
where Pf is the power at frequency f in the ADC output, and PfS
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參數(shù)描述 |
|---|---|
| EVAL-AD7327SDZ | 功能描述:BOARD EVAL FOR AD7327SDZ RoHS:否 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:* 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-AD7328CB | 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Channel, Software-Selectable True Bipolar Input, 12-Bit Plus Sign ADC |
| EVAL-AD7328SDZ | 功能描述:BOARD EVAL FOR AD7328 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:iCMOS® 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-AD7329CB | 制造商:Analog Devices 功能描述: |
| EVAL-AD7329CBZ | 功能描述:BOARD EVALUATION FOR AD7329CBZ 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:iCMOS® 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 |
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