- 您现在的位置：买卖IC网 > PDF目录1891 > AD7400YRWZ-REEL7 (Analog Devices Inc)IC MODULATOR SIGMA-DELTA 16-SOIC PDF资料下载
参数资料
| 型号： | AD7400YRWZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC MODULATOR SIGMA-DELTA 16-SOIC |
| 标准包装： | 400 |
| 类型： | 调制器 |
| 分辨率（位）： | 16 b |
| 采样率（每秒）： | 10M |
| 数据接口： | 串行 |
| 电压电源： | 单电源 |
| 电源电压： | 4.5 V ~ 5.25 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
Data Sheet
AD7400
Rev. G | Page 17 of 20
APPLICATIONS INFORMATION
GROUNDING AND LAYOUT
Supply decoupling with a value of 100 nF is strongly recom-
mended on both VDD1 and VDD2. Decoupling on one or both
VDD1 pins does not significantly affect performance. In
applications involving high common-mode transients, care
should be taken to ensure that board coupling across the
isolation barrier is minimized. Furthermore, the board layout
should be designed so that any coupling that occurs equally
affects all pins on a given component side. Failure to ensure this
may cause voltage differentials between pins to exceed the
absolute maximum ratings of the device, thereby leading to
latch-up or permanent damage. Any decoupling used should be
placed as close to the supply pins as possible.
Series resistance in the analog inputs should be minimized to
avoid any distortion effects, especially at high temperatures. If
possible, equalize the source impedance on each analog input to
minimize offset. Beware of mismatch and thermocouple effects
on the analog input PCB tracks to reduce offset drift.
EVALUATING THE AD7400 PERFORMANCE
A simple standalone AD7400 evaluation board is available with
split ground planes and a board split beneath the AD7400
package to ensure isolation. This board allows access to each
pin on the device for evaluation purposes. External supplies and
all other circuitry (such as a digital filter) must be provided by
the user.
INSULATION LIFETIME
All insulation structures, subjected to sufficient time and/or
voltage, are vulnerable to breakdown. In addition to the testing
performed by the regulatory agencies, Analog Devices has
carried out an extensive set of evaluations to determine the
lifetime of the insulation structure within the AD7400.
These tests subjected populations of devices to continuous
cross-isolation voltages. To accelerate the occurrence of failures,
the selected test voltages were values exceeding those of normal
use. The time-to-failure values of these units were recorded and
used to calculate acceleration factors. These factors were then
used to calculate the time to failure under normal operating
conditions. The values shown in Table 7 are the lesser of the
following two values:
The value that ensures at least a 50-year lifetime of
continuous use
The maximum CSA/VDE approved working voltage
It should also be noted that the lifetime of the AD7400 varies
according to the waveform type imposed across the isolation
barrier. The iCoupler insulation structure is stressed differently
depending on whether the waveform is bipolar ac, unipolar ac,
or dc. Figure 29, Figure 30, and Figure 31 illustrate the different
isolation voltage waveforms.
0V
RATED PEAK VOLTAGE
04718-
029
Figure 29. Bipolar AC Waveform
0V
RATED PEAK VOLTAGE
04718-
030
Figure 30. Unipolar AC Waveform
0V
RATED PEAK VOLTAGE
04718-
031
Figure 31. DC Waveform
相关PDF资料 |
PDF描述 |
|---|---|
| AD74111YRUZ-REEL7 | IC CODEC AUDIO MONO LP 16TSSOP |
| AD75019JP | IC CROSSPOINT SWIT 16X16 44PLCC |
| AD7503KNZ | IC MULTIPLEXER 8X1 16DIP |
| AD7506KQ | IC MULTIPLEXER 16X1 28CDIP |
| AD7512DIJP | IC SWITCH DUAL SPDT 20PLCC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7401 | 制造商:AD 制造商全称:Analog Devices 功能描述:Isolated Sigma-Delta Modulator |
| AD7401_0612 | 制造商:AD 制造商全称:Analog Devices 功能描述:Isolated Sigma-Delta Modulator |
| AD7401A | 制造商:AD 制造商全称:Analog Devices 功能描述:Isolated Sigma-Delta Modulator |
| AD7401AYRWZ | 功能描述:IC MODULATOR SIGMA-DELTA 16SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7401AYRWZ-RL | 功能描述:IC MODULATOR SIGMA-DELTA 16SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
发布紧急采购，3分钟左右您将得到回复。